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Data publikacji: 26 lipca 2024

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1

Nasr Esfahani, Kourosh, Mohammad Damous Zandi, J. Antonio Travieso-Rodriguez, Moisès Graells i Montserrat Pérez-Moya. "Manufacturing and Application of 3D Printed Photo Fenton Reactors for Wastewater Treatment". International Journal of Environmental Research and Public Health 18, nr 9 (4.05.2021): 4885. http://dx.doi.org/10.3390/ijerph18094885.

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Additive manufacturing (AM) or 3D printing offers a new paradigm for designing and developing chemical reactors, in particular, prototypes. The use of 3D printers has been increasing, their performance has been improving, and their price has been reducing. While the general trend is clear, particular applications need to be assessed for their practicality. This study develops and follows a systematic approach to the prototyping of Advanced Oxidation Processes (AOP) reactors. Specifically, this work evaluates and discusses different printable materials in terms of mechanical and chemical resistance to photo-Fenton reactants. Metallic and ceramic materials are shown to be impracticable due to their high printing cost. Polymeric and composite materials are sieved according to criteria such as biodegradability, chemical, thermal, and mechanical resistance. Finally, 3D-printed prototypes are produced and tested in terms of leakage and resistance to the photo-Fenton reacting environment. Polylactic acid (PLA) and wood–PLA composite (Timberfill®) were selected, and lab-scale raceway pond reactors (RPR) were printed accordingly. They were next exposed to H2O2/Fe(II) solutions at pH = 3 ± 0.2 and UV radiation. After 48 h reaction tests, results revealed that the Timberfill® reactor produced higher Total Organic Carbon (TOC) concentrations (9.6 mg·L−1) than that obtained for the PLA reactor (5.5 mg·L−1) and Pyrex® reactor (5.2 mg·L−1), which suggests the interference of Timberfill® with the reaction. The work also considers and discusses further chemical and mechanical criteria that also favor PLA for 3D-printing Fenton and photo-Fenton reactors. Finally, the work also provides a detailed explanation of the printing parameters used and guidelines for preparing prototypes.

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Zheng, Rongwei, Ruifan Tan, Yali Lv, Xiaoling Mou, Junqiao Qian, Ronghe Lin, Ping Fang i Weidong Kan. "Oxygen-Vacancy-Rich Fe@Fe3O4 Boosting Fenton Chemistry". Catalysts 13, nr 7 (30.06.2023): 1057. http://dx.doi.org/10.3390/catal13071057.

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Iron-based materials are widely applied in Fenton chemistry, and they have promising prospects in the processing of wastewater. The composition complexity and rich chemistry of iron and/or oxides, however, hamper the precise understanding of the active sites and the working mechanism, which still remain highly controversial. Herein, iron oxides of four different model systems are designed through a conventional precipitation method plus H2 reduction treatment. These systems feature Fe@Fe3O4 with abundant oxygen vacancy, Fe0 and Fe3O4 particles with interface structures, and Fe3O4-dominated nanoparticles of different sizes. These materials are applied in the decomposition of methyl orange as a model reaction to assess the Fenton chemistry. The Fe@Fe3O4 with core–shell structures exhibits significantly higher decomposition activity than the other Fe3O4-rich nanoparticles. A thin Fe3O4 layer formed by auto-oxidation of iron particles when exposed to air can boost the activity as compared with the Fe0 and Fe3O4 particles with interface structures but poor oxygen vacancy. The unique hetero-structure with the co-existence of both metallic iron and oxygen vacancy displays excellent redox propensity, which might account for the superior Fenton activity. This finding provides a new perspective to understand and design highly efficient iron-based Fenton catalysts.

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Ribeiro, João Peres, Helena G. M. F. Gomes, Luana Sarinho, Catarina C. Marques i Maria Isabel Nunes. "Synergies of metallic catalysts in the Fenton and photo-Fenton processes applied to the treatment of pulp bleaching wastewater". Chemical Engineering and Processing - Process Intensification 181 (listopad 2022): 109159. http://dx.doi.org/10.1016/j.cep.2022.109159.

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Alwan, Evan Hussain, i Sabiha Mahdi Kanaan. "Methods of Additive Manufacturing for Dental Co-Cr Alloys: Systematic Review". Journal of Techniques 4, nr 33 (15.11.2022): 80–85. http://dx.doi.org/10.51173/jt.v4i33.641.

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Additive manufacturing is a popular method of producing items directly from digital models through a layer-by-layer material build-up process. To evaluate the Current State of Knowledge on Dental Co-Cr Alloy Additive Manufacturing Techniques. Innovative additive printing technologies have made it possible to produce intricate dental components customized for each patient. This study investigated the manufacturing method (build orientation and process parameters), post-processing techniques, and metallic powders utilized in dental applications (stress relieving, surface finishing). The databases PubMed, Science Direct, Mendeley, and Google Scholar were used to carry out an electronic search. A manual search of pertinent article citations was also carried out; inclination angle, stress relieving, heat treatment, cobalt-chromium, selective laser melting, selective laser sintering, and powder bed fusion, dentistry were some of the keywords utilized. Although this publication tries to contain the most recent study from the previous eleven years (2010–2021), and to explain the materials powders and metal used in dental applications. A cutting-edge technique called additive manufacturing uses a layer-by-layer approach to material build-up to produce things directly from digital models. It is missing a tool, a manufacturing process that produces fully thick metallic components quickly and with good precision. Qualities of additive aspects of production such component design flexibility, part complexity, light- weighting, component consolidation, and functional design are generating specific interest in the additive fabrication of metal for use in automotive, marine, oil & gas, and aerospace industries during powder bed fusion, each layer of the powder bed is only partially fused employing a laser or electron beam as an energy source, the recent and most promising additive manufacturing technologies utilized to produce intricate, low-volume, tiny metallic parts. By using computer-aided design (CAD) technology, recent developments in digital dentistry have changed dental offices and dental laboratories, by utilizing 3D printing because precise metal framework fitting and technique faster.

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Wang, Xinyu, Zhangqian Liang, Yanjun Xue, Xiaoyue Chen, Xiu Qian, Yanli Zhou, Xiaoli Zhang, Hongzhi Cui i Jian Tian. "A novel semi-metallic 1T′-MoReS3 co-catalyst". Chemical Engineering Journal 425 (grudzień 2021): 130525. http://dx.doi.org/10.1016/j.cej.2021.130525.

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6

Yasin, Ghulam, Muhammad Arif, Muhammad Naeem Nizam, Muhammad Shakeel, Muhammad Abubaker Khan, Waheed Qamar Khan, Tahira Mehtab Hassan, Zaheer Abbas, Iman Farahbakhsh i Yu Zuo. "Effect of surfactant concentration in electrolyte on the fabrication and properties of nickel-graphene nanocomposite coating synthesized by electrochemical co-deposition". RSC Advances 8, nr 36 (2018): 20039–47. http://dx.doi.org/10.1039/c7ra13651j.

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Gu, Lingyu, Shushen Wang, Xidong Hui, Fudong Li, Hengfu Lin i Kaiming Wu. "Degradation performance and mechanism toward methyl orange via nanoporous copper powders fabricated by dealloying of ZrCuNiAl metallic glassy precursors". Nanotechnology 33, nr 13 (7.01.2022): 135713. http://dx.doi.org/10.1088/1361-6528/ac3bec.

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Abstract The catalyst of nanoporous Cu (NP-Cu) powders, with the chemical composition of Cu79.63Ni6.85O13.53 (at%), was successfully fabricated by dealloying of Zr–Cu–Ni–Al metallic glassy precursors. The as-prepared NP-Cu powders, co-existing with Cu2O phase on Cu ligament surface, had a three-dimensional network porous structure. The NP-Cu powders/H2O2 system showed superior catalytic degradation efficiency toward azo dyes in both acidic (pH 2) and neutral (pH 7) environments. Moreover, the cyclic tests indicated that this powder catalyst also exhibited good durability. A novel degradation mechanism of NP-Cu powders/H2O2 was proposed: the high degradation performance in acidic environment was mainly derived from heterogeneous reaction involved with a specific pathway related to Cu3+ to produce HO·, while in neutral environment it was primarily resulted from homogeneous reaction with the generation of HO· from the classical Cu-based Fenton-like process. This work indicates that the NP-Cu powders have great potential applications as catalysts for wastewater treatments.

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Kuś, Anna, Wirginia Pilarczyk, Aleksandra Małachowska, Andrzej Ambroziak i Piotr Gębara. "Investigation of Mechanical and Magnetic Properties of Co-Based Amorphous Powders Obtained by Atomization". Materials 14, nr 23 (30.11.2021): 7357. http://dx.doi.org/10.3390/ma14237357.

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Properties of Co-based alloys with high Glass Forming Ability (GFA) in the form of powder are still not widely known. However, powders of high GFA alloys are often used for the development of bulk metallic glasses by additive manufacturing. In this work Co47.6B21.9Fe20.4Si5.1Nb5% at. and Co42B26.5Fe20Ta5.5Si5Cu1% at. were developed by gas-atomization. Obtained powders in size 50–80 µm were annealed at Tg and Tx of each alloy. Then SEM observation, EDS analyses, differential thermal analysis, X-ray diffraction, nanoindentation, Mössbauer, and magnetic properties research was carried out for as-atomized and annealed states. The gas atomization method proved to be an efficient method for manufacturing Co-based metallic glasses. The obtained powder particles were spherical and chemically homogeneous. Annealing resulted in an increase of mechanical properties such as hardness and the elastic module of Co47.6B21.9Fe20.4Si5.1Nb5% at and Co42B26.5Fe20Ta5.5Si5Cu1%, which was caused by crystallization. The magnetic study shows that Co47.6B21.9Fe20.4Si5.1Nb5 and Co42B26.5Fe20Ta5.5Si5Cu1 are soft magnetic and semi-hard magnetic materials, respectively.

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Baek, Soyoung, Yasaman Ghaffari i Jiyeol Bae. "Synthesis of Fe2O3/Mn2O3 Nanocomposites and Impregnated Porous Silicates for Dye Removal: Insights into Treatment Mechanisms". Catalysts 12, nr 9 (14.09.2022): 1045. http://dx.doi.org/10.3390/catal12091045.

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Fe2O3/Mn2O3 nanocomposites and impregnated porous silicates (Fe2O3/Mn2O3@SiO2 [FMS]) were prepared and investigated as catalytic adsorbents. The catalysts were applied for cationic and anionic dye pollutants in the adsorption, Fenton reaction, and photocatalysis processes at a pH of 7. Fe2O3/Mn2O3 nanoparticles (FM-NPs) were prepared using the co-precipitation method and were impregnated in SiO2 by the sol–gel process. The synthesized materials were characterized using various sophisticated techniques. Results indicated that the impregnation of bi-metallic NPs in SiO2 increased the surface area, and the function of the adsorbent also improved. FMS showed a significant adsorption effect, with 79.2% rhodamine B removal within 15 min. Fenton and photocatalyst reaction showed removal rates of 85.3% and 97.9%, respectively, indicating that negatively charged porous silicate attracts cationic pollutants. In the case of the anionic pollutant, Congo red, the adsorption reaction of FMS did not occur, and the removal rate of the photocatalyst reaction was 79%, indicating the repulsive force between the negatively charged silica and the anionic dye. Simultaneously, bi-metal-bonded FM-NPs facilitated the photocatalytic reaction, reducing the recombination of electron-hole pairs. This study provides new insights into the synthesis of FM-NPs and FMS as photocatalytic adsorbents and their photocatalytic mechanisms based on reaction conditions and contaminant characteristics. The developed materials have potential applications for environmental mitigation.

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Rahman, I. Z., Md Kamruzzaman i M. A. Rahman. "Magneto-impedance effect in Co-based metallic glass ribbons". Journal of Materials Processing Technology 153-154 (listopad 2004): 791–96. http://dx.doi.org/10.1016/j.jmatprotec.2004.04.107.

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Colmant, Marine, Paul Fawaz, Kenneth Stanton, Oisin MacMichael i Bart Vande Vannet. "Microhardness and Chemical Composition of Different Metallic Brackets: An In Vitro Study". Dentistry Journal 11, nr 9 (24.08.2023): 202. http://dx.doi.org/10.3390/dj11090202.

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The purpose of the study is to compare the hardness of different metallic brackets to enamel and to determine their chemical composition and microstructure. Five metallic brackets (0.022″ × 0.028″ inch) from seven orthodontic firms produced in different alloys (Discovery® Smart/Empower®/Genius®2 Metal/VictoryTM series/Equilibrium®/Damon Q) were chosen (n = 35). The hardness of the brackets and enamel was measured using a microhardness tester. The study of the chemical composition of brackets was carried out on a single bracket per series. A scanning electron microscope (SEM) equipped with an energy dispersive spectroscopy (EDS) detector was used. Analysis of the chemical composition of metallic brackets was obtained with Oxford Instruments Ultim Max Aztec software. Metallic brackets’ hardness varied from 203 to 439 HV. A significant difference exists between Ti Equilibrium® brackets, the rest of the brackets and the enamel (p-value = 0.003). No significant difference was found between SSa(stainless-steel alloy), Co-Cra(Cobalt-Chrome) brackets and the enamel. The chemical study confirms that the alloys used to produce metallic brackets validate all the data of the manufacturers except for Genius®2 Metal; according to this study, they are considered to be Co-Cra alloys. The study of the composition of brackets made it possible to confirm manufacturers’ data. Genius®2 Metal brackets, Empower®2 and VictoryTM series brackets filled the properties needed for orthodontic treatment. The hardness of metallic brackets is influenced by the alloy used and manufacturing method. Co-Cra brackets with hardness comparable to enamel can be considered as an alternative to SSa brackets in patients allergic to nickel.

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12

Zhang, Xue-Lian, Dai-Xue Zhang, Gang-Gang Chang, Xiao-Chen Ma, Jian Wu, Yong Wang, Hao-Zheng Yu, Ge Tian, Jian Chen i Xiao-Yu Yang. "Bimetallic (Zn/Co) MOFs-Derived Highly Dispersed Metallic Co/HPC for Completely Hydrolytic Dehydrogenation of Ammonia–Borane". Industrial & Engineering Chemistry Research 58, nr 17 (9.04.2019): 7209–16. http://dx.doi.org/10.1021/acs.iecr.9b00897.

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周, 元. "Degradation of Phenol by PMS Catalyzed by Co-Doped Carbon Materials Prepared by Fenton-Like Method". Material Sciences 12, nr 11 (2022): 1152–58. http://dx.doi.org/10.12677/ms.2022.1211127.

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Rieger, Florian, Thomas Rief, Nicole Motsch i Joachim M. Hausmann. "Manufacturing CFRP-Parts Using a Modified Co-Curing Method – Fundamental Experimental Analysis". Key Engineering Materials 809 (czerwiec 2019): 372–77. http://dx.doi.org/10.4028/www.scientific.net/kem.809.372.

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With the increasing utilization of fiber-reinforced polymers in various areas of application such as aviation and automotive, the need for efficient production methods appropriate for these materials also gains importance. The widespread use of metallic fasteners in conjunction with differential design leads to stress concentrations when applied to FRPs and prevents the full utilization of their mechanical properties. In an effort to develop an appropriate joining technology that also contributes to reducing tooling costs, co-curing of thermoset FRP laminates is analyzed in the present work. To gain insight into the feasibility of the use of pre-cured laminates in co-curing processes, laminates of varying degree of cure are joined with uncured laminates in a co-curing process and the mechanical properties of the resulting laminates are investigated experimentally. Based on these experimental results, an interdependence between bonding properties and the degree of cure of the pre-cured laminate can be shown.

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Lisiecki, A., D. Ślizak i A. Kukofka. "Laser cladding of Co-based metallic powder at cryogenic conditions". Journal of Achievements in Materials and Manufacturing Engineering 1, nr 95 (2.07.2019): 20–31. http://dx.doi.org/10.5604/01.3001.0013.7622.

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Purpose: of this paper was demonstration a novel technique of laser cladding by experimentally composed Co-based metallic powder and forced cooling of the substrate by liquid nitrogen under cryogenic conditions, at the temperature -190°C, for producing clad layers with enhanced microstructure characteristic and properties. Design/methodology/approach: Technological tests of laser cladding were conducted by means of a high power fibre laser HPFL with maximum output power 3.0 kW, and six-axis robot. The experimental Co-based powder was composed for providing high abrasive wear resistance, high resistance for impact load, and also for corrosion resistance at elevated temperature. The unique and novel technique of forced cooling of the substrate was provided by immersing the specimens in the liquid nitrogen bath. The three coaxial nozzle head was designed and custom made to provide precise deposition of the powder delivered into the laser beam irradiation region. The scope of the study included tests of conventional laser cladding at free cooling in ambient air in a wide range of processing parameters, and also trials of laser cladding under cryogenic conditions. The test clad layers produced by conventional laser cladding and by the novel technique of laser powder deposition under cryogenic conditions were investigated and compared. Findings: The obtained results indicate that the novel technique of forced cooling the substrate by liquid nitrogen bath provides lower penetration depth, as well as low dilution of the clad, and also provides higher hardness of the clads. Additionally, it is possible shaping the geometry of the individual bead, providing high reinforcement and low width. Research limitations/implications: The presented results are based just on preliminary test of the novel technique of laser cladding under cryogenic conditions. Therefore, further study and detailed analyse of the influence of the cooling rate on the quality, microstructure, and properties of the deposited coatings are required. Practical implications: The study is focused on practical application of the novel technique for manufacturing of wear resistance coatings characterised with enhanced performance compared to conventional range of application of the laser cladding. Originality/value: Novel technique of laser cladding at forced cooling under cryogenic conditions was demonstrated. The powder used for cladding trials was experimentally composed (not commercially available). The experimental stand custom made was used with custom made powder feeding rate, and also with custom made coaxial nozzle head.

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Kolganov, K. А., I. V. Mikryukov i А. S. Markov. "Development of a technology for the manufacturing of parts/components of an internal combustion engine involving additive manufacturing methods". Power and Autonomous equipment 2, nr 3 (30.10.2019): 166–84. http://dx.doi.org/10.32464/2618-8716-2019-2-3-166-184.

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Introduction: the article considers a strategic objective consisting in reduction of the Russian companies’ dependence on highly sought-after imported power engineering equipment, including internal combustion engines used as part of auxiliary power units. In the article, the co-authors propose to integrate additive manufacturing methods into technologies used to produce internal combustion engines, their parts and components, which are temporarily or permanently impossible to import. The co-authors have proven the feasibility of advanced additive technologies in respect of casting molds and castings designated for internal combustion engines. An alloy of cast iron featuring an advanced chemical composition was developed. It enables the use of complex shape castings free from any non-metallic inclusions to produce engine parts and components; these castings demonstrate higher values of strength and wear resistance, they are a must for an internal combustion engine operating in severe conditions. The co-authors demonstrate the casting mold production process using ExOne’s S-MAX 3D printer.Methods: the study is based on the analysis of strengths, weaknesses and peculiarities of established casting methods, with account for faster production cycles and a higher quality of final products.Results and discussion: in the article, the co-authors analyze the proposed technology used to manufacture castings for “a block of cylindersˮ and “a head of the block of cylindersˮ.Conclusion: the newly developed technology for production of parts/assemblies of an internal combustion engine, including an advanced alloy having a new chemical composition, enables manufacturers to make high quality parts/ assemblies for an internal combustion engine in the most economical and productive way.

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Rodriguez Reinoso, Mariana, Marco Civera, Vito Burgio, Annalisa Chiappone, Oliver Grimaldo Ruiz, Alessandra D’Anna, Carmela Riccio i in. "Effects of the Manufacturing Methods on the Mechanical Properties of a Medical-Grade Copolymer Poly(L-lactide-co-D,L-lactide) and Poly(L-lactide-co-ε-caprolactone) Blend". Materials 14, nr 21 (25.10.2021): 6381. http://dx.doi.org/10.3390/ma14216381.

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Biocompatible and biodegradable polymers represent the future in the manufacturing of medical implantable solutions. As of today, these are generally manufactured with metallic components which cannot be naturally absorbed within the human body. This requires performing an additional surgical procedure to remove the remnants after complete rehabilitation or to leave the devices in situ indefinitely. Nevertheless, the biomaterials used for this purpose must satisfy well-defined mechanical requirements. These are difficult to ascertain at the design phase since they depend not only on their physicochemical properties but also on the specific manufacturing methods used for the target application. Therefore, this research was focused on establishing the effects of the manufacturing methods on both the mechanical properties and the thermal behavior of a medical-grade copolymer blend. Specifically, Injection and Compression Molding were considered. A Poly(L-lactide-co-D,L-lactide)/Poly(L-lactide-co-ε-caprolactone) blend was considered for this investigation, with a ratio of 50/50 (w/w), aimed at the manufacturing of implantable devices for tendon repair. Interesting results were obtained.

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Iatecola, Amilton, Guilherme Arthur Longhitano, Luiz Henrique Martinez Antunes, André Luiz Jardini, Emilio de Castro Miguel, Miloslav Béreš, Carlos Salles Lambert i in. "Osseointegration Improvement of Co-Cr-Mo Alloy Produced by Additive Manufacturing". Pharmaceutics 13, nr 5 (14.05.2021): 724. http://dx.doi.org/10.3390/pharmaceutics13050724.

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Cobalt-base alloys (Co-Cr-Mo) are widely employed in dentistry and orthopedic implants due to their biocompatibility, high mechanical strength and wear resistance. The osseointegration of implants can be improved by surface modification techniques. However, complex geometries obtained by additive manufacturing (AM) limits the efficiency of mechanical-based surface modification techniques. Therefore, plasma immersion ion implantation (PIII) is the best alternative, creating nanotopography even in complex structures. In the present study, we report the osseointegration results in three conditions of the additively manufactured Co-Cr-Mo alloy: (i) as-built, (ii) after PIII, and (iii) coated with titanium (Ti) followed by PIII. The metallic samples were designed with a solid half and a porous half to observe the bone ingrowth in different surfaces. Our results revealed that all conditions presented cortical bone formation. The titanium-coated sample exhibited the best biomechanical results, which was attributed to the higher bone ingrowth percentage with almost all medullary canals filled with neoformed bone and the pores of the implant filled and surrounded by bone ingrowth. It was concluded that the metal alloys produced for AM are biocompatible and stimulate bone neoformation, especially when the Co-28Cr-6Mo alloy with a Ti-coated surface, nanostructured and anodized by PIII is used, whose technology has been shown to increase the osseointegration capacity of this implant.

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Kim, Soo-Myung, i Alfons Vogelpohl. "Degradation of Organic Pollutants by the Photo-Fenton-Process". Chemical Engineering & Technology 21, nr 2 (luty 1998): 187–91. http://dx.doi.org/10.1002/(sici)1521-4125(199802)21:2<187::aid-ceat187>3.0.co;2-h.

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Chen, Qingkong, Fangying Ji, Tingyi Liu, Peng Yan, Wei Guan i Xuan Xu. "Synergistic effect of bifunctional Co–TiO2 catalyst on degradation of Rhodamine B: Fenton-photo hybrid process". Chemical Engineering Journal 229 (sierpień 2013): 57–65. http://dx.doi.org/10.1016/j.cej.2013.04.024.

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Li, Xin, Wendan Luo, Ke Zhu, Yuwen Chen, Yizhe Huang, Chao Jin, Rongliang Qiu, Shaojuan Luo, Guoqing Guan i Kai Yan. "Electronic modulation of S and N co-implanted carbon as fenton-like photocatalysts for water remediation". Chemical Engineering Journal 474 (październik 2023): 146016. http://dx.doi.org/10.1016/j.cej.2023.146016.

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Bhatti, Darshana Tushar, i Sachin Prakashbhai Parikh. "Recent progress in doped TiO2Photocatalysis and Hybrid Advanced Oxidation Processes for Organic Pollutant Removalfrom Wastewater". Current World Environment 17, nr 1 (30.04.2022): 146–60. http://dx.doi.org/10.12944/cwe.17.1.13.

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Hybrid advanced oxidation processes (HAPOs) for the removal of non-biodegradable organics from wastewater have been studied in recent literature. With the increase in industrial development, the quantity of wastewater generated from these industries also organic wastewater produced by industrial manufacturing has posed threats to the environment.AOP’s are one of the promising advanced technologies for mineralization of organics present in wastewater. Hybrid advanced oxidation process based on the ozonation, sonolysis, Photo-Fenton reagents and electrochemical method, has greater potential for complete mineralization of recalcitrantorganics. This review article includes recent progress in the research and application of TiO2 photocatalysis for the removal of nonbiodegradable organic pollutants present in water. It will provide a quick reference for various hybrid AOPs systems and their effectiveness. This review article provides quick insights into (1) hybrid AOP for treatment of various industrial effluents or model effluents, (2) work done on doped/co-doped photocatalyst as heterogeneous catalysts (3) study of parameters affecting the photocatalysis to enhance complete oxidation of organics present in wastewater. A mechanistic investigation of hybrid advanced oxidation processes with combinations of sonolysis and Fenton process coupled with UV, adsorption and addition of biochar has been discussed.

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Postek, Eligiusz, i Tomasz Sadowski. "Temperature Effects during Impact Testing of a Two-Phase Metal-Ceramic Composite Material". Materials 12, nr 10 (17.05.2019): 1629. http://dx.doi.org/10.3390/ma12101629.

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Metal-ceramic composite (MCC) materials can be used for manufacturing high-responsibility structures such as jet engines or cutting tools. One example of these materials is a two-phase wolfram carbide (WC) and cobalt (Co) composite. This MCC is a combination of hard WC grains with a Co metallic ductile binder. The resulting microstructure is a combination of two phases with significantly different mechanical behaviors. In this study, we investigate impact conditions, starting with an illustrative example of the Taylor impact bar where—although the process is very rapid—the equivalent plastic strain and temperature are higher in the adiabatic solution than those in the coupled solution. On exposing the WC/Co composite with a metallic binder to impact loading, heat is generated by plastic deformation. If the process is fast enough, the problem can be treated as adiabatic. However, a more common situation is that the process is slower, and the heat is generated in the ductile metallic binders. As a result, the associated grains are heated due to the conduction effect. Consequently, the process should be treated as coupled. When the impact is applied over a short time period, maximum temperatures are significantly lower if the process is analyzed as coupled rather than as adiabatic. The grains are immediately affected by temperature increase in the binders. Therefore, the heat conduction effect should not be omitted.

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Augusto, Paulo A., Teresa Castelo-Grande, Diana Vargas, Lorenzo Hernández, Leticia Merchán, Angel M. Estevez, Juan Gómez, José M. Compaña i Domingos Barbosa. "Water Decontamination with Magnetic Particles by Adsorption and Chemical Degradation. Influence of the Manufacturing Parameters". Materials 13, nr 10 (12.05.2020): 2219. http://dx.doi.org/10.3390/ma13102219.

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Many different processes for manufacturing of magnetic particles are present in scientific literature. However, the large majority are not able to be applied to large-scale real operations. In this study, we present an experiment undertaken to determine advisable values and options for the main variables and factors for the application of the reverse co-precipitation method to produce magnetic particles for real environmental applications. In such, we have tried a conjugation of values/factors that has led to 12 main experiments and production of 12 different particles. After an initial study concerning their main characteristics, these 12 different particles were applied for the sorption removal of COD from real wastewater samples (efficiencies between 70% and 81%) and degradation of Methylene blue by Fenton reaction (degradation efficiencies up to 100%). The main conclusion from this work is that the best set of values depends on the target environmental application, and this set of values were determined for the two applications studied.

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Porojan, Liliana, Mihaela Birdeanu, Cristina Savencu i Sorin Porojan. "Surface Characteristics and Corrosion Properties of Co-Cr Dental Alloys Processed by Laser-based Methods". Revista de Chimie 68, nr 11 (15.12.2017): 2538–41. http://dx.doi.org/10.37358/rc.17.11.5923.

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Technological developments have led to the implementation of novel digitalized manufacturing methods for the production of metallic structures in prosthetic dentistry, less studied to date. The objective of the study was to assess the morphological characteristics and corrosion properties of selective laser sintered (SLS) and selective laser melted (SLM) cobalt�chromium (Co�Cr) dental alloys related to the surface processing and pH variations. For the experimental analyses metallic specimens made of Co-Cr dental alloys were prepared using SLS and SLM, as indicated by the manufacturers. The morphology and the topography of the samples were investigated by scanning electron microscopy and atomic force microscopy. Electrochemical measurements were made and the values for corrosion potential (Ecorr), corrosion current (icorr) and corrosion rate were calculated. The immanent advantages of additive technologies are accompanied by porosities resulted after the deposition of the fine metallic powder, especially for the SLM method. Considering the corrosion current density value a parameter which provides information on the kinetics of the corrosion process, SLS samples showed better performance under pH variations. Surface processing can result in an improvement in the corrosion performance also for extreme pH values. Given that the microstructure and corrosion behavior was significantly different, further differences in the clinical behavior of prosthetic restorations manufactured using SLS and SLM additive techniques are anticipated.

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Dawod, Nazem, Marian Miculescu, Iulian Vasile Antoniac, Florin Miculescu i Doriana Agop-Forna. "Metal–Ceramic Compatibility in Dental Restorations According to the Metallic Component Manufacturing Procedure". Materials 16, nr 16 (10.08.2023): 5556. http://dx.doi.org/10.3390/ma16165556.

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In terms of production technology, metal–ceramic systems for dental restorations comply with a concrete algorithm, the efficiency of which is always dependent on the applications for which they are intended. The first stage involves obtaining metal support, followed by firing the ceramic on the surface of the metal to meet the list of functional and aesthetic requirements of a future restoration. The compatibility of the two materials—the metal component and the ceramic component—must be ensured in several respects: chemical compatibility, thermo–chemical compatibility, and mechanical compatibility. Thus, there is a need to simulate the thermal behavior of the metal–ceramic couple in its processing to achieve appropriate dental prostheses. In this study, three types of Co–Cr metal frames were manufactured using three different production technologies: conventional casting, milling (CAM), and selective laser melting (SLM). Composition analyses, scanning electron microscopy (SEM), and microstructural analyses of the metal–ceramic interface for each type of production technology, as well as the determination of the hardness and the thermal expansion coefficients of experimental materials and three-point bending tests, were carried out in this study. Considering all these aspects, we demonstrated the influence of the technology of producing the metallic part of the metal–ceramic bonding process in dental prostheses.

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So, M. H., J. S. Han, T. H. Han, J. W. Seo i C. G. Kim. "Decomposition of 1,4-dioxane by photo-Fenton oxidation coupled with activated sludge in a polyester manufacturing process". Water Science and Technology 59, nr 5 (1.03.2009): 1003–9. http://dx.doi.org/10.2166/wst.2009.056.

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The cyclic ether 1,4-dioxane is a synthetic industrial chemical that is used as a solvent in producing paints and lacquers. The EPA and the International Agency for Research on Cancer(IARC) classified 1,4-dioxane as a GROUP B2(probable human) carcinogen. 1,4-dioxane is also produced as a by-product during the manufacture of polyester. In this research, a polyester manufacturing company (i.e. K Co.) in Gumi, Korea was investigated regarding the release of high concentrations of 1,4-dioxane (about 600 mg/L) and whether treatment prior to release should occur to meet with the level of the regulation standard (e.g., 5 mg/L in 2010). A 10 ton/day pilot-scale treatment system using photo-Fenton oxidation was able to remove approximately 90% of 1,4-dioxane under the conditions that concentrations of 2800 ppm H2O2 and 1,400 ppm FeSO4 were maintained along with 10 UV-C lamps (240 μW/cm2) installed and operated continuously during aeration. However, the effluent concentration of 1,4-dioxane was still high at about 60 mg/L where TOC concentration in the effluent had been moreover increased due to decomposed products such as aldehydes and organic acids. Thus, further investigation is needed to see whether the bench scale (reactor volume, 8.9 L) of activated sludge could facilitate the decomposition of 1,4-dioxane and their by-products (i.e., TOC). As a result, 1,4-dioxane in the effluent has been decreased as low as 0.5 mg/L. The optimal conditions for the activated sludge process that were obtained are as follows: DO, 3-3.5 mg/L; HRT, 24 h; SRT 15 d; MLSS, 3,000 mg/L. Consequently, photo-Fenton oxidation coupled with activated sludge can make it possible to efficiently decompose 1,4-dioxane to keep up with that of the regulation standard.

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Chen, Shuoshuo, Yu Xiao i Zhenjun Jiao. "Status of SOC Development at Chaozhou Three-Circle". ECS Transactions 111, nr 6 (19.05.2023): 565–70. http://dx.doi.org/10.1149/11106.0565ecst.

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Chaozhou Three-Circle (Group) Co., Ltd. (CCTC) is a leading company in development and manufacturing of electronic and ceramic components. CCTC has been focusing on SOFC R&D and manufacturing since 2004, covering the complete value chain from powder to power. Based on anode-supported cell technology (ASC in fuel cell mode), the C2-stack in planar design using metallic interconnect exhibits a high efficiency of more than 69% (DC, LHV) at 1.5 kW. Long-term stack tests using pipeline natural gas have been conducted for 20,000 hours, with low degradation rates of below 0.4%/kh.

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de Moraes, José Ermírio F., Isabela B. S. Will, Joanna Yu, Antonio C. S. Teixeira i Roberto Guardani. "Photocatalytic Degradation of Phenol in Water by the Photo-Fenton Process". Chemie Ingenieur Technik 73, nr 6 (czerwiec 2001): 674. http://dx.doi.org/10.1002/1522-2640(200106)73:6<674::aid-cite6743333>3.0.co;2-0.

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Ardelean, Lavinia, Lucien Reclaru, Cristina Bortun i Laura Cristina Rusu. "Joint Quality Assessment of Three Different Laser Welded Dental Alloys". Solid State Phenomena 216 (sierpień 2014): 63–66. http://dx.doi.org/10.4028/www.scientific.net/ssp.216.63.

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The aim of this study is to assess the quality of laser welded joints, by different methods such as: scanning electronic microscopy, metallography, microhardness testing, spectrographic and radiographic analyses. The alloys assessed are a titanium-based alloy used in manufacturing prefabricated pieces for implantology, a standard AuPd alloy for the metallo-ceramic technique and a Cr-Co-Mo alloy used for manufacturing the metallic components of partial dentures. The conclusion of the testing is that laser welded joints are generally mechanically satisfactory. Laser is best suitable to weld titanium and its alloys because they have higher rates of laser beam absorption and lower thermal conductivity than other dental casting alloys.

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Giehr, Andreas, Lubow Maier, Sofia Angeli, Stephan A. Schunk i Olaf Deutschmann. "Dry and Steam Reforming of CH4 on Co-Hexaaluminate: On the Formation of Metallic Co and Its Influence on Catalyst Activity". Industrial & Engineering Chemistry Research 59, nr 42 (24.09.2020): 18790–97. http://dx.doi.org/10.1021/acs.iecr.0c03522.

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Yang, Jingren, Deqian Zeng, Jun Li, Lingqian Dong, Wee-Jun Ong i Yiliang He. "A highly efficient Fenton-like catalyst based on isolated diatomic Fe-Co anchored on N-doped porous carbon". Chemical Engineering Journal 404 (styczeń 2021): 126376. http://dx.doi.org/10.1016/j.cej.2020.126376.

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Hitzler, Leonhard, Frank Alifui-Segbaya, Philipp Williams, Burkhard Heine, Michael Heitzmann, Wayne Hall, Markus Merkel i Andreas Öchsner. "Additive Manufacturing of Cobalt-Based Dental Alloys: Analysis of Microstructure and Physicomechanical Properties". Advances in Materials Science and Engineering 2018 (11.11.2018): 1–12. http://dx.doi.org/10.1155/2018/8213023.

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The limitations of investment casting of cobalt-based alloys are claimed to be less problematic with significant improvements in metal additive manufacturing by selective laser melting (SLM). Despite these advantages, the metallic devices are likely to display mechanical anisotropy in relation to build orientations, which could consequently affect their performance “in vivo.” In addition, there is inconclusive evidence concerning the requisite composition and postprocessing steps (e.g., heat treatment to relieve stress) that must be completed prior to using the devices. In the current paper, we evaluate the microstructure of ternary cobalt-chromium-molybdenum (Co-Cr-Mo) and cobalt-chromium-tungsten (Co-Cr-W) alloys built with direct metal printing and LaserCUSING SLM systems, respectively, at 0°, 30°, 60°, and 90° inclinations (Φ) in as-built (AB) and heat-treated (HT) conditions. The study also examines the tensile properties (Young’s modulus, E; yield strength, RP0.2; elongation at failure, At; and ultimate tensile strength, Rm), relative density (RD), and microhardness (HV5) and macrohardness (HV20) as relevant physicomechanical properties of the alloys. Data obtained indicate improved tensile properties and HV values after a short and cost-effective heat-treatment cycle of Co-Cr-Mo alloys; however, the process did not homogenize the microstructure of the alloy. Annealing heat treatment of Co-Cr-W led to significant isotropic characteristics with increased E and At (except for Φ = 90°) in contrast to decreased RP0.2, Rm, and HV values, compared to the AB form. Similarly, the interlaced weld-bead structures in AB Co-Cr-W were removed during heat treatment, which led to a complete recrystallization of the microstructure. Both alloys exhibited defect-free microstructures with RD exceeding 99.5%.

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Li, Bingzhang, Yao Meng, Xiaoxia Lin, Degui Tu, Shunxi Shen, Ting He, Yuqi Li i Hui Zhang. "Enhanced photo-electro-Fenton degradation performance using graphene structure-oriented MOFs (2Fe/Co)/CNF cathode membrane". Journal of Cleaner Production 401 (maj 2023): 136782. http://dx.doi.org/10.1016/j.jclepro.2023.136782.

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YAZICI, Ziya Ozgur. "Synthesis and Characterization of TiC-reinforced Metallic Glass Composite Coatings". Materials Science 27, nr 1 (15.01.2021): 32–36. http://dx.doi.org/10.5755/j02.ms.23362.

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In this paper, the Co-based metallic glass coatings deposited on soft metal substrates by pneumatic squeezing method were investigated. Also, the effects of TiC additions (%0-10) on the mechanical properties of the coatings were discussed in terms of hardness measurements. Microstructural observations have shown that the coatings with a thickness range of about 20-30 µm can be produced as non-porous layers in either entirely amorphous (0-6% TiC) or composite (8-10% TiC) structures. The glassy and TiC-reinforced glass composite coatings exhibit good adhesion characteristics and form a harder layer with the average hardness values between 1000 and 1600 Hv respectively. The hardness measurements evaluated together with XRD and EDX analyses showed that (Ti,Ta)C crystals precipitated in the amorphous matrix are responsible for further increase of the coatings hardness value up to 1600 Hv. The results also provide clues for mass manufacturing route in one step synthesis of the metallic glass and their composite coatings.

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Sun, Wenxin, Lingli Zhou, Guoshuai Liu, Yi Zheng, Hua Zou i Junling Song. "Enhanced electro-Fenton degradation of sulfamethazine using Co-based selenite modified graphite cathode via in-situ generation of •OH". Chemical Engineering Journal 463 (maj 2023): 142419. http://dx.doi.org/10.1016/j.cej.2023.142419.

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Zhang, Tongsheng, Hui Peng, Rong Chen, Yiqun Guo, Jiawei Wang, Xinzhi Chen, Jiangxiong Wei i Qijun Yu. "Enhancing simultaneous desulfurization and denitrification efficiency of cement kiln exhaust gas via co-catalytic Fenton oxidation process". Journal of Cleaner Production 426 (listopad 2023): 139105. http://dx.doi.org/10.1016/j.jclepro.2023.139105.

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Islam, A., M. Zulfiqar, S. Nazir i Jun Ni. "Robust half-metallic spin-gap in Co₂CrAl: doping and strain engineering". Physica Scripta 97, nr 3 (2.02.2022): 035801. http://dx.doi.org/10.1088/1402-4896/ac4dcf.

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Abstract Half-metallic ferromagnetic (HM FM) materials with sizeable HM-gap have grabbed a lot of attention as they provide high spin-filtering and reduce the spin-flipping, which are necessary parameters for the manufacturing of magnetic memory devices. Herein, the effect of 3d transition metals (TM = Ti, V, Mn, and Fe) doping at Cr site on the electronic and magnetic properties of full-Heusler Co2CrAl compound is investigated utilizing ab-initio calculations. The negative formation energies for all doped systems confirm their structural stability at ambient pressure. Our results revealed that undoped and all the TM-doped systems exhibit a stable HM FM state. The Cr d yz and d 3 z 2 − r 2 orbitals are mainly responsible for conductivity in the spin-majority channel with a small contribution from d xy / d x 2 − y 2 states in each case. It is also found the admixture of t 2g and e g characteristics of TM ions in the spin-magnetization density iso-surfaces, where magnetism is discussed by analyzing the electronic spin state configurations. Moreover, it is found that half-metallicity in all systems is robust and can be preserved by the compression/elongation of the unit cell volume up to 10%. Finally, the Bader charge analysis exhibits that all the motifs contain a mixture of covalent and ionic characteristics. Hence, the present work suggests that 3d TM-doped Co2CrAl structures are of great interest for the development of extremely capable data storage devices.

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Dimitriadis, Konstantinos, i Simeon Agathopoulos. "Selective Laser Melting-Sintering Technology: From Dental Co-Cr Alloys to Dental Ceramic Materials". Solid State Phenomena 339 (19.12.2022): 115–22. http://dx.doi.org/10.4028/p-03fhb7.

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The general term of CAD/CAM technology (i.e., Computer-Aided Design/Compute-Aided Manufacturing) comprises several aspects, such as subtractive manufacturing processes, like milling (soft and hard milling), and additive manufacturing processes, like Selective Laser Melting (SLM), which refers to metallic materials, or Selective Laser Sintering (SLS), which refers to glasses/glass-ceramics/ceramic, or polymeric, or related composite materials produced via powder metallurgy technique. In biomaterials fabrications, the first step in SLM or SLS technology is the digital design of the prosthetic restoration, whereby the patient's individual anatomical and morphological features are precisely described. Afterwards laser-aided melting or sintering is repeated (layer-by-layer) until the complete restoration item is fabricated. A wide range of dental materials can be produced by SLM or SLS technology, e.g., metals and alloys, thermoplastic polymers, glasses/ceramics, waxes, and thermoplastic composites. Thus, it is a promising technology for producing a variety of dental restorations, such as metal-ceramic restorations, all-ceramic restorations, maxillofacial prostheses, functional skeletons, individual scaffolds for tissue engineering, etc. SLM technology is already widely applied for fabricating metal objects for dental (e.g., Co-Cr alloy) and orthopedic prostheses. As a subsequence, in the last decade, researchers' interest has been shifted to SLS of ceramic powders, such as SiO2, Al2O3, SiO2/Al2O3, and ZrO2/Y2O3. This article comprehensively reviews the SLS process and its prospects for producing glasses/glass-ceramic/ceramic materials for biomedical/dental applications. The experimental results clearly show that this very modern additive manufacturing technology does not jeopardize the properties of the ceramic biomaterials' properties.

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Konieczny, Bartłomiej, Agata Szczesio-Wlodarczyk, Jerzy Sokolowski i Kinga Bociong. "Challenges of Co–Cr Alloy Additive Manufacturing Methods in Dentistry—The Current State of Knowledge (Systematic Review)". Materials 13, nr 16 (10.08.2020): 3524. http://dx.doi.org/10.3390/ma13163524.

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Complex dental components which are individually tailored to the patient can be obtained due to new additive manufacturing technology. This paper reviews the metallic powders used in dental applications, the fabrication process (build orientation, process parameters) and post-processing processes (stress relieving, surface finishing). A review of the literature was performed using PubMed, ScienceDirect, Mendeley and Google Scholar. Over eighty articles were selected based on relevance to this review. This paper attempts to include the latest research from 2010 until 2020, however, older manuscripts (10 articles) were also selected. Over 1200 records were identified through the search; these were screened for title and/or summary. Over eighty articles were selected based on relevance to this review. In order to obtain a product which can be used in clinical applications, the appropriate manufacturing parameters should be selected. A discussion was made on optimal selective laser melting (SLM) parameters in dentistry. In addition, this paper includes a critical review of applied thermal treatment methods for Co–Cr alloys used in dentistry.

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Cheng, Hao, Yi Wen, Chao Huang, Ping Wang, Chengyou Sun, Chongling Feng, Jialu Xu, Li Du, Ting Yan i Min Cheng. "Application of Mo2C for enhancement of co-catalytic performance of Fe3+/PS based fenton-like reaction in degrading tetracycline hydrochloride". Chemical Engineering Journal 474 (październik 2023): 145508. http://dx.doi.org/10.1016/j.cej.2023.145508.

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Lapcevic, Ana R., Danimir P. Jevremovic, Tatjana M. Puskar, Robert J. Williams i Dominic Eggbeer. "Comparative analysis of structure and hardness of cast and direct metal laser sintering produced Co-Cr alloys used for dental devices". Rapid Prototyping Journal 22, nr 1 (18.01.2016): 144–51. http://dx.doi.org/10.1108/rpj-04-2014-0051.

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Purpose – The purpose of this paper is to analyse structure and measure hardness of Co-Cr dental alloy samples made with two different technologies, conventional casting method (CCM samples) and additive direct metal laser sintering technology (DMLS samples), and to compare the results. Design/methodology/approach – CCM samples were made in a conventional casting machine, using remanium 800+ Co-Cr dental alloy (Dentaurum, Ispringen, Germany). DMLS samples were fabricated out of EOS CC SP2 Co-Cr alloy (EOS, GmbH, Munich, Germany) using DMLS technology. Samples for structural analysis were plate-shaped (10 × 10 × 1.5 mm3) and for the hardness test were prismatic-shaped (55 × 10.2 × 11.2 mm3). Structure was analysed via an inverting microscope and colour metallography method. Findings – CCM samples have a dense, irregular dendritic mesh, which is typical for the metallic phase of the Co-Cr dental alloy. DMLS alloy has a more homogenous and more compact structure, compared to CCM. Metals, the alloy basis consists of, form semilunar stratified layers, which are characteristic for the additive manufacturing (AM) technique. Hardness values of DMLS (mean value was 439.84 HV10) were found to be higher than those of CCM (mean value was 373.76 HV10). Originality/value – There are several reports about possible use of AM technologies for manufacturing dental devices, and investigation of mechanical properties and biocompatibility behaviour of AM-produced dental alloys. Microstructure of Co-Cr alloy made with DMLS technology has been introduced for the first time in the present paper.

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Hong, Peidong, Zijian Wu, Dandan Yang, Kaisheng Zhang, Junyong He, Yulian Li, Chao Xie i in. "Efficient generation of singlet oxygen (1O2) by hollow amorphous Co/C composites for selective degradation of oxytetracycline via Fenton-like process". Chemical Engineering Journal 421 (październik 2021): 129594. http://dx.doi.org/10.1016/j.cej.2021.129594.

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Wang, Jiajia, Baojun Liu, Hongfei Liu, Xia Hu i Shaoqi Zhou. "Insight into the mechanisms of BPS degradation by electro-Fenton method modified by Co-based nanoparticles on the oxidized carbon cathode". Chemical Engineering Journal 446 (październik 2022): 137376. http://dx.doi.org/10.1016/j.cej.2022.137376.

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Porto, Mariana Borges, Lucas Barbosa Alvim i Ambrósio Florêncio de Almeida Neto. "Nickel removal from wastewater by induced co-deposition using tungsten to formation of metallic alloys". Journal of Cleaner Production 142 (styczeń 2017): 3293–99. http://dx.doi.org/10.1016/j.jclepro.2016.10.140.

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Sudibandriyo, Mahmud, Puguh Setyopratomo i Praswasti P. D. K. Wulan. "Carbon nanotubes synthesis using Fe-Co-Mo/MgO tri-metallic catalyst: study the effect of reaction temperature, reaction time and catalyst weight". International Journal of Nanomanufacturing 16, nr 1 (2020): 1. http://dx.doi.org/10.1504/ijnm.2020.10025908.

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Setyopratomo, Puguh, Praswasti P. D. K. Wulan i Mahmud Sudibandriyo. "Carbon nanotubes synthesis using Fe-Co-Mo/MgO tri-metallic catalyst: study the effect of reaction temperature, reaction time and catalyst weight". International Journal of Nanomanufacturing 16, nr 1 (2020): 1. http://dx.doi.org/10.1504/ijnm.2020.104476.

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Sfikas, Athanasios K., Sergio Gonzalez, Angeliki G. Lekatou, Spyros Kamnis i Alexandros E. Karantzalis. "A Critical Review on Al-Co Alloys: Fabrication Routes, Microstructural Evolution and Properties". Metals 12, nr 7 (26.06.2022): 1092. http://dx.doi.org/10.3390/met12071092.

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Al-Co alloys is an emerging category of metallic materials with promising properties and potential application in various demanding environments. Over the years, different manufacturing techniques have been employed to fabricate Al-Co alloys, spanning from conventional casting to rapid solidification techniques, such as melt spinning, thus leading to a variety of different microstructural features. The effect of the fabrication method on the microstructure is crucial, affecting the morphology and volume of the precipitates, the formation of supersaturated solid solutions and the development of amorphous phases. In addition, the alloy composition has an effect on the type and volume fraction of intermetallic phases formed. As a result, alloy properties are largely affected by the microstructural outcomes. This review focuses on highlighting the effect of the fabrication techniques and composition on the microstructure and properties of Al-Co alloys. Another goal is to highlight areas in the field that are not well understood. The advantages and limitations of this less common category of Al alloys are being discussed with the scope of future prospects and potential applications.

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De Carluccio, Marco, Paula Barboza, Paniz Attarian, Mohammad Ali Ahangarnokolaei i Luigi Rizzo. "Olive mill wastewater co-treatment: Effect of (electro)Fenton processes and dilution ratio on moving bed biofilm reactor performance". Journal of Cleaner Production 447 (kwiecień 2024): 141526. http://dx.doi.org/10.1016/j.jclepro.2024.141526.

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Li, Xiumin, Jinlan Xu i Zhilin Yang. "Efficient oriented interfacial oxidation of petroleum hydrocarbons by functionalized Fe/N co-doped biochar-mediated heterogeneous Fenton for heavily contaminated soil remediation". Chemical Engineering Journal 450 (grudzień 2022): 138466. http://dx.doi.org/10.1016/j.cej.2022.138466.

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