Готові списки джерел за темами / Electrochemical production

Добірка наукової літератури з теми "Electrochemical production"

Автор: Grafiati
Опубліковано: 30 травня 2022
Оновлено: 20 лютого 2023

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Статті в журналах з теми "Electrochemical production"

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Yasuda, Kouji, and Toshiyuki Nohira. "Electrochemical production of silicon." High Temperature Materials and Processes 41, no. 1 (January 1, 2022): 247–78. http://dx.doi.org/10.1515/htmp-2022-0033.

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Abstract Silicon solar cells are crucial devices for generating renewable energy to promote the energy and environmental fields. Presently, high-purity silicon, which is employed in solar cells, is manufactured commercially via the Siemens process. This process is based on hydrogen reduction and/or the thermal decomposition of trichlorosilane gas. The electrochemical process of producing silicon has attracted enormous attention as an alternative to the existing Siemens process. Thus, this article reviews different scientific investigations of the electrochemical production of silicon by classifying them based on the employed principles (electrorefining, electrowinning, and solid-state reduction) and electrolytes (molten oxides, fluorides, chlorides, fluorides–chlorides, ionic liquids [ILs], and organic solvents). The features of the electrolytic production of silicon in each electrolyte, as well as the prospects, are discussed.
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LIN, G., R. KAINTHLA, N. PACKHAM, O. VELEV, and J. BOCKRIS. "On electrochemical tritium production." International Journal of Hydrogen Energy 15, no. 8 (1990): 537–50. http://dx.doi.org/10.1016/0360-3199(80)90001-4.

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Tseung, A. C. C. "Electrochemical hydrogen technologies. Electrochemical production and combustion of hydrogen." Journal of Electroanalytical Chemistry and Interfacial Electrochemistry 317, no. 1-2 (November 1991): 303–5. http://dx.doi.org/10.1016/0022-0728(91)85024-j.

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Hine, F., M. Yasuda, Y. Ogata, T. Kojima, and Yang Weiyi. "Electrochemical Production of Potassium Carbonate." Journal of The Electrochemical Society 132, no. 10 (October 1, 1985): 2336–40. http://dx.doi.org/10.1149/1.2113574.

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Eisazadeh, H., G. Spinks, and G. G. Wallace. "Electrochemical production of polypyrrole colloids." Polymer 35, no. 17 (August 1994): 3801–3. http://dx.doi.org/10.1016/0032-3861(94)90569-x.

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Moratalla, Ángela, Mayra K. S. Monteiro, Cristina Sáez, Elisama V. Dos Santos, and Manuel A. Rodrigo. "Full and Sustainable Electrochemical Production of Chlorine Dioxide." Catalysts 12, no. 3 (March 9, 2022): 315. http://dx.doi.org/10.3390/catal12030315.

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With the final purpose of manufacturing electrochemically-based devices that produce chloride dioxide efficiently, this paper focuses on the production of chlorates and hydrogen peroxide in two different electrochemical cells, in which operation conditions are selected to obtain high efficiencies, and in the subsequent combination of both electrochemically manufactured solutions to produce chlorine dioxide. Results demonstrate that suitable reagents can be produced by electrolyzing 20 g L−1 sodium chloride solutions at 50 mA cm−2 and 50 °C, and 3000 mg L−1 NaClO4 solutions at 5.0 mA cm−2 and 15 °C with current efficiencies of 30.9% and 48.0%, respectively. Different tests performed with these electrolyzed solutions, and also with commercial hydrogen peroxide and chlorate solutions, demonstrate that the ratio between both reagents plays a very important role in the efficiency in the production of chlorine dioxide. Results clearly showed that, surplus chlorate should be contained in the reagent media to prevent further reduction of chlorine dioxide by hydrogen peroxide and consequently, loses of efficiency in the process. During the reaction, a gas with a high oxidation capacity and consisting mainly in chloride dioxide is produced. The results contributed to the maximum conversion reached being 89.65% using electrolyzed solutions as precursors of ClO2, confirming that this technology can be promising to manufacture portable ClO2 devices.
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Salverda, Michael, Antony Raj Thiruppathi, Farnood Pakravan, Peter C. Wood, and Aicheng Chen. "Electrochemical Exfoliation of Graphite to Graphene-Based Nanomaterials." Molecules 27, no. 24 (December 7, 2022): 8643. http://dx.doi.org/10.3390/molecules27248643.

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Here, we report on a new automated electrochemical process for the production of graphene oxide (GO) from graphite though electrochemical exfoliation. The effects of the electrolyte and applied voltage were investigated and optimized. The morphology, structure and composition of the electrochemically exfoliated GO (EGO) were probed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), energy dispersive X-ray (EDX) spectroscopy, X-ray photoelectron spectroscopy (XPS), FTIR spectroscopy and Raman spectroscopy. Important metrics such as the oxygen content (25.3 at.%), defect density (ID/IG = 0.85) and number of layers of the formed EGO were determined. The EGO was also compared with the GO prepared using the traditional chemical method, demonstrating the effectiveness of the automated electrochemical process. The electrochemical properties of the EGO, CGO and other carbon-based materials were further investigated and compared. The automated electrochemical exfoliation of natural graphite powder demonstrated in the present study does not require any binders; it is facile, cost-effective and easy to scale up for a large-scale production of graphene-based nanomaterials for various applications.
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Kishimoto, Naoyuki, Saki Ito, Masaaki Kato, and Hideo Otsu. "Efficacy of an electrochemical flow cell introduced into the electrochemical Fenton-type process using a Cu(I)/HOCl system." Water Science and Technology 80, no. 1 (July 1, 2019): 184–90. http://dx.doi.org/10.2166/wst.2019.267.

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Abstract An electrochemical flow cell was introduced into the electrochemical Fenton-type process using a Cu(I)/HOCl system. The effects of the current density and the initial cupric ion (Cu2+) concentration on the process performance were discussed. The current efficiency of the process improved from 6.1% for an electrolytic tank system to 33% for the electrochemical flow cell system at a current density of 5.0 mA/cm2 and an initial Cu2+ concentration of 1.0 mM. The current efficiency increased to 58% for Cu2+ concentrations of 2.0 mM and beyond. The cathodic reduction of Cu2+ to the cuprous ion (Cu+) emerged as the rate-determining step in comparison to the anodic production of free chlorine. The introduction of the electrochemical flow cell enhanced the cathodic production of Cu+ by reinforcing the mass transfer of the Cu2+ to the cathode, and the detachment of micro bubbles generated electrochemically at the cathode surface. A decrease in the current density and an increase in the initial Cu2+ concentration also improved the current efficiency by promoting the cathodic production of Cu+. This involved the prevention of the cathodic reduction of protons to hydrogen gas and the elevation of the electrode potential of the cathodic reaction from Cu2+ to Cu+.
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Popczyk, Magdalena, Julian Kubisztal, Bożena Łosiewicz, and A. Budniok. "Production and Electrochemical Characterization of Nickel Based Composite Coatings Containing Chromium Group Metal and Silicon Powders." Solid State Phenomena 228 (March 2015): 219–24. http://dx.doi.org/10.4028/www.scientific.net/ssp.228.219.

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The Ni+Cr+Si, Ni+Mo+Si and Ni+W+Si composite coatings were obtained by electrodeposition of crystalline nickel from an electrolyte containing suspension of suitable metallic and non-metallic components (Cr, Mo, W and Si). These coatings were obtained galvanostatically at the current density of jdep = -0.100 A cm-2 and at the temperature of 338 K. Chemical composition of the coatings was determined by energy dispersive spectroscopy (EDS). The electrochemical activity of these electrocatalysts was studied in the process of hydrogen evolution reaction (HER) in 5 M KOH solution using steady-state polarization and electrochemical impedance spectroscopy (EIS) methods. The kinetic parameters of the HER on particular electrode materials were determined. It was found that Ni+Mo+Si composite coatings are characterized by enhanced electrochemical activity towards the HER as compared with Ni+W+Si and Ni+Cr+Si coatings due to the presence of Mo and increase in electrochemically active surface area.
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Pak, Daewon, and Santha Chakrovortty. "Hydroxyl radical production in electrochemical reactor." International Journal of Environment and Pollution 27, no. 1/2/3 (2006): 195. http://dx.doi.org/10.1504/ijep.2006.010462.

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Дисертації з теми "Electrochemical production"

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Weaver, Eric P. "Low voltage electrochemical hydrogen production." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001849.

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Cloutier, Caroline R. "Advanced electrochemical reforming of methanol for hydrogen production." Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/39857.

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The issue of efficient, low-cost, sustainable hydrogen (H₂) production is one of the barriers to the adoption of a H₂ economy. In this thesis, the electrochemical production of H₂ from liquid methanol (CH₃OH) in acidic aqueous media was studied in a proton exchange membrane (PEM) electrolyser in the static mode at low temperatures. A baseline study showing the influence of CH₃OH concentration, catalyst, catalyst support, operating temperature and operating mode was established. A theoretical thermodynamic analysis of the system was carried out as a function of temperature, and the limiting current densities, kinetic parameters, including the Tafel slopes and current exchange density, and apparent activation energies were determined. The effect of electrochemical promotion (EP) was investigated to see if it can increase the efficiency and performance of H₂ production through electrochemical processes. The electrochemical promotion of electrocatalysis (EPOE) was investigated by carrying out the electrolysis in triode and tetrode operation. It was shown to improve the PEM electrolysis in the galvanostatic and potentiostatic modes. A decrease in electrolysis voltage or an increase in electrolysis current proportional to the current or potential imposed in the auxiliary circuit was observed when the auxiliary current or potential was opposite to the electrolyser circuit current or potential. The effect was observed using catalytic and non-catalytic non-precious electrolyser electrode materials. It was postulated that triode and tetrode operation enhanced the electro-oxidation rate through electrochemical pumping and spillover of protons. With this novel electrolysis configuration, electrolysis cost reduction may be achieved through the use of non-precious electrolyser anode materials and/or improving electrolyser performance. The electrochemical promotion of catalysis (EPOC) was also investigated for the catalytic reforming of CH₃OH at low temperature with Pt-Ru/C and Pt-Ru/TiO₂. The synthesized Pt-Ru/TiO₂ was characterized physico-chemically and electrochemically. Powder catalytic CH₃OH reforming tests showed that both catalysts can be used to generate H₂. EPOC experiments were conducted on gas diffusion electrodes (GDEs) in galvanostatic control. Under the experimental conditions, only supplying H⁺ to the catalyst working electrode surface resulted only in a Faradaic enhancement of the catalytic activity for the low temperature reforming of CH₃OH, which appears to be a purely electrophilic behaviour.
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Fatollahi-Fard, Farzin. "Production of Titanium Metal by an Electrochemical Molten Salt Process." Research Showcase @ CMU, 2017. http://repository.cmu.edu/dissertations/893.

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Titanium production is a long and complicated process. What we often consider to be the standard method of primary titanium production (the Kroll process), involves many complex steps both before and after to make a useful product from titanium ore. Thus new methods of titanium production, especially electrochemical processes, which can utilize less-processed feedstocks have the potential to be both cheaper and less energy intensive than current titanium production processes. This project is investigating the use of lower-grade titanium ores with the electrochemical MER process for making titanium via a molten salt process. The experimental work carried out has investigated making the MER process feedstock (titanium oxycarbide) with natural titanium ores|such as rutile and ilmenite|and new ways of using the MER electrochemical reactor to \upgrade" titanium ores or the titanium oxycarbide feedstock. It is feasible to use the existing MER electrochemical reactor to both purify the titanium oxycarbide feedstock and produce titanium metal.
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Landon, James R. "Electrochemical Oxygen Production: Catalyst Development to Meet the World’s Oxygen Demands." Research Showcase @ CMU, 2011. http://repository.cmu.edu/dissertations/557.

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Ghahremani, Raziyeh. "Electrochemical Oxidation of Lignin for the Production of Value-added Chemicals." Ohio University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1603983239429615.

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Wang, Huizhi, and 王慧至. "Electrochemical conversion of aluminum energy: energy efficiency, co-production concept and systemcharacteristics." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B4697040X.

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Lyu, Xiang. "Furfural and Hydrogen Production from Raw Biomass Integrating Chemical and Electrochemical Methods." Ohio University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1605089185418469.

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Paschkewitz, Timothy Michael. "Ammonia Production at Ambient Temperature and Pressure: An Electrochemical and Biological Approach." Diss., University of Iowa, 2012. https://ir.uiowa.edu/etd/4893.

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The majority of power generated worldwide is from combustion of fossil fuels. The sustainability and environmental impacts of this non renewable process are severe. Alternative fuels and power generation systems are needed, however, to cope with increasing energy demands. Ammonia shows promise for use in power generation, however it is costly to produce and very few methods of using it as a fuel are developed. To address the need for alternative methods of ammonia synthesis, this research designed and tested a bioelectrochemical device that generates NH3 through electrode induced enzyme catalysis. The ammonia generating device consists of an electrode modified with a polymer that contains whole cell Anabaena variabilis, a photosynthetic cyanobacterium. A. variabilis contains nitrogenase and nitrate/nitrite reductase, catalysts for the production of ammonia. In this system, the electrode supplies driving force and generates a reductive microenvironment near cells to facilitate enzymatic production of NH3 at ambient temperatures and pressures. Farm animal wastes contain significant amounts of NO2- and NO3-, which can leech into groundwater sources and contaminate them. The system described here recycles NO2- and NO3- to NH4sup+ by the nitrate/nitrite reductase enzyme. Unlike nitrogen fixation by the nitrogenase enzyme whose substrate is atmospheric N2, the substrates for nitrate/nitrite reductase are NO2- and NO3-. The ammonia produced by this system shows great potential as a crop fertilizer. While the substrates and enzymatic basis for ammonia production by nitrogenase and nitrate/nitrite reductase are very different, there is utility in the comparison of commercially produced ammonia by the Haber Bosch synthesis and by the bioelectrocatalytic device described here. In one day, the Haber Bosch process produces 1800 tons of NH3 at an energetic cost of $500/ton. Per ton of ammonia, the Haber Bosch process consumes 28 GJ of energy. The bioelectrocatalytic device produces 1 ton of NH3 for $10/ton, consuming only 0.04 GJ energy, which can be obtained by sunlight via installation of a photovoltaic device. Thus, the system presented here demonstrates ammonia production with significant impact to the economy. NH3 production by the bioelectrocatalytic is dependent upon A. var. cell density and electrode polarization. The faradaic current response from cyclic voltammetry is linearly related to cell density and ammonia production. Without electrode polarization, immobilized A. var. do not produce ammonia above the basal level of 2.8 ± 0.4 ΜM. Ten minutes after cycled potential is applied across the electrode, average ammonia output increases to 22 ± 8 ΜM depending on the mediator and substrate chemicals present. Ammonia is produced by this system at 25 °℃ and 1 atm. The electrochemical basis for enhanced NH3 by immobilized cyanobacteria is complex with multiple levels of feedback.
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Lowe, Sean E. "Electrochemical Approaches for the Production of Functional Graphene and its Niche Applications." Thesis, Griffith University, 2019. http://hdl.handle.net/10072/389548.

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Graphene has inspired the intrigue of researchers and industry for its potential to improve the performance of existing materials and create entirely new materials and devices. Although graphene has numerous proposed applications, it has not seen widespread adoption in the marketplace. This is partly due to the limitations of existing graphene synthesis routes, which can be costly, hazardous, low yield, or difficult to scale. Electrochemical approaches to graphene synthesis, however, may allow us to address these challenges. In this thesis, an electrochemical route to graphene is developed and its applications explored. Specifically, a packed bed electrochemical reactor capable of producing electrochemically-derived graphene oxide (EGO) from graphite is introduced. The developed method has several distinguishing features which make it promising for certain applications and larger-scale implementation. In contrast to most existing electrochemical approaches, the current method can use as its input natural flake graphite with no binder, compression, or extensive preprocessing. Low, constant current anodic charging in a dilute sulfuric acid electrolyte produces graphite oxide which can be readily dispersed in polar solvents to predominantly single- to few-layer EGO. The graphite electrode making up the packed bed can be scaled along all of its dimensions for larger scale implementations. The product can be thermally treated in air at 200 °C to increase its conductivity beyond what is possible with conventional, chemically-derived graphene oxide. Throughout the thesis, several key synthesis parameters are explored to improve our fundamental understanding of graphite oxidation and produce a variety of EGO products. It was found that using boron-doped diamond as the conductive interface between the graphite and power source dramatically improved the yield. The dispersibility and degree of oxidation could be increased by using expanded graphite as precursor. Poor electrolyte diffusion throughout the packed bed was overcome by implementing bulk solution diffusion channels inside the bed itself. A systematic study found several relationships between the electrolyte acid concentration and the product. Dilute sulfuric acids (less than or equal to 7.1 M) produced EGO with a less crystalline and less oxidised structure, relative to the more concentrated acid. It was found that 11.6 M sulfuric acid produced optimally oxidised graphene, while 7.1 M acid produced less oxidised, but more conductive material. Two different graphene applications were considered. The utility of EGO as a conductive nanofiller in lithium ion battery cathodes was demonstrated. A thorough investigation also explored EGO as a conductive nanofiller in flexible, wearable tactile sensors. Here, EGO can be readily mixed with aqueous surfactantwrapped polydimethylsiloxane (PDMS), 3D printed, then thermally deoxygenated in situ. The 3D printed sensors have exceptional feature resolution and performance. Ultimately, the current thesis represents a significant step forward for EGO synthesis and application. The experiments demonstrate the utility of electrochemical reactor engineering for producing new processes and unique types of graphene. This type of work will be critical for the eventual larger-scale production of electrochemically-derived graphene.
Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Environment and Sc
Science, Environment, Engineering and Technology
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Zhao, Ge. "Effects of surface microstructure and nanostructure on osteoblast-like mg63 cell number, differentiation and local factor production." Thesis, Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/36532.

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Surface roughness affects bone formation around orthopaedic implants in vivo and osteoblast functions in vitro. Osteoblast-like MG63 cells cultured on rough surfaces exhibited decreased cell number, increased differentiation and increased local factor production when compared to cells grow on smooth surfaces. In these experiments, roughness was characterized as average peak to valley height (Ra) which is not equal throughout the surface. Other features of roughness, including peak and valley area distributions and curvature of the valleys, will affect cell functions. In this study, novel titanium surfaces were prepared by photolithography to produce well designed microstructure and nanostructure. Smooth disks were made by producing craters of 10 micrometer, 30 micrometer and 100 micrometer diameters on titanium disks with constant curvatures. Craters were placed sparsely (10/1, 30/1, 100/1) or compactly (10/6, 30/6, 100/6). Smooth disks were also acid etched to make an overall roughness of Ra 0.7 micrometer or anodized to produce volcano-like nanostructure of Ra 0.4 micrometer. The results revealed the distinguishing contributions of microcrater size, crater spacing and nanostructures to surface effect on cell number, differentiation (alkaline phosphatase; osteocalcin) and local factor levels (TGF-beta1; PGE2). Cell attachment depends on crater spacing; cell growth and aggregation depend on crater dimension and cell morphology depends on the presence of nanostructural features. Cell differentiation and local factor production are modulated by acid etched roughness in concert with microstructure, and active TGF-beta1 level depends on nanoscale roughness.
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Книги з теми "Electrochemical production"

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1933-, Wendt Hartmut, ed. Electrochemical hydrogen technologies: Electrochemical production and combustion of hydrogen. Amsterdam: Elsevier, 1990.

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Scott, Keith, ed. Electrochemical Methods for Hydrogen Production. Cambridge: Royal Society of Chemistry, 2019. http://dx.doi.org/10.1039/9781788016049.

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Djokić, Stojan S., ed. Electrochemical Production of Metal Powders. Boston, MA: Springer US, 2012. http://dx.doi.org/10.1007/978-1-4614-2380-5.

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Leite, Edson Roberto, ed. Nanostructured Materials for Electrochemical Energy Production and Storage. Boston, MA: Springer US, 2009. http://dx.doi.org/10.1007/978-0-387-49323-7.

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Suzuki, Hiroyuki. Production and electrochemical behaviour of Ni-Co-Mo-B amorphous alloys for alkaline water electrolysis. Ottawa: National Library of Canada = Bibliothèque nationale du Canada, 1995.

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Production, National Research Council (U S. ). Committee on Electrochemical Aspects of Energy Conservation and. New horizons in electrochemical science and technology: Report of the Committee on Electrochemical Aspects of Energy Conservation and Production, National Materials Advisory Board, Commission on Engineering and Technical Systems, National Research Council. Washington, D.C: National Academy Press, 1986.

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7

Forum on New Materials (5th 2010 Montecatini Terme, Italy). New materials I: Advanced fossil fuel energy technologies, hydrogen production and storage, fuel cells, electrochemical energy storage systems : proceedings of the 5th Forum on New Materials, part of CIMTEC 2010, 12th International Ceramics Congress and 5th Forum on New Materials, Montecatini Terme, Italy, June 13-18, 2010. Stafa-Zurich, Switzerland: Trans Tech Publications on behalf of Techna Group, Faenza, Italy, 2011.

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8

Hydrogen Electrochemical Production. Elsevier, 2018. http://dx.doi.org/10.1016/c2016-0-01050-1.

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Pollet, Bruno G., Christophe Coutanceau, Thomas Audichon, and Steve Baranton. Hydrogen Electrochemical Production. Elsevier Science & Technology Books, 2017.

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Pollet, Bruno G., Christophe Coutanceau, Stève Baranton, and Thomas Audichon. Hydrogen Electrochemical Production. Elsevier Science & Technology Books, 2017.

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Частини книг з теми "Electrochemical production"

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Koper, Marc T. M. "Electrochemical Hydrogen Production Electrochemical Hydrogen Production." In Encyclopedia of Sustainability Science and Technology, 3414–26. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-0851-3_862.

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He, Ting, Mahaprasad Kar, Neal D. McDaniel, and Bruce B. Randolph. "Electrochemical Hydrogen Production." In Springer Handbook of Electrochemical Energy, 897–940. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-46657-5_27.

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Koper, Marc T. M. "Electrochemical Hydrogen Production." In Fuel Cells and Hydrogen Production, 819–32. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4939-7789-5_862.

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Kuster, Fredy, and Mohammad Dalaee. "Electrochemical Dressing." In CIRP Encyclopedia of Production Engineering, 1–7. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-642-35950-7_16807-1.

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Kuster, Fredy, and Mohammad Dalaee. "Electrochemical Grinding." In CIRP Encyclopedia of Production Engineering, 1–5. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-642-35950-7_16826-1.

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Kuster, Fredy, and Mohammad Dalaee. "Electrochemical Dressing." In CIRP Encyclopedia of Production Engineering, 564–70. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-53120-4_16807.

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Kuster, Fredy, and Mohammad Dalaee. "Electrochemical Grinding." In CIRP Encyclopedia of Production Engineering, 570–75. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-53120-4_16826.

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Yildiz, A., and K. Pekmez. "Electrochemical and Photoelectrochemical Hydrogen Production." In Hydrogen Energy System, 45–52. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0111-0_4.

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Van de Krol, Roel, and Joop Schoonman. "Photo-Electrochemical Production of Hydrogen." In Sustainable Energy Technologies, 121–42. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6724-2_6.

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Zolin, Lorenzo. "Electrochemical Power Sources." In Large-scale Production of Paper-based Li-ion Cells, 3–11. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-39016-1_1.

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Тези доповідей конференцій з теми "Electrochemical production"

1

Виноградов, Олег Станиславович, Наталья Александровна Виноградова, Ольга Владимировна Барановская, and Алексей Евгеньевич Яловой. "ENSURING TECHNOSPHERIC SAFETY OF ELECTROCHEMICAL PRODUCTION." In Национальная безопасность России: актуальные аспекты: сборник избранных статей Всероссийской научно-практической конференции (Санкт-Петербург, Январь 2021). Crossref, 2021. http://dx.doi.org/10.37539/nb189.2021.26.21.002.

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В статье описана возможность перехода предприятий электрохимического профиля на систему экономии воды и материалов, а также снижения экологической нагрузки на окружающую среду. The article describes the possibility of transition of enterprises of an electrochemical profile to a system of saving water and materials, as well as reducing the environmental load on the environment.
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Babiniec, Sean M., Andrea Ambrosini, and James E. Miller. "Renewable Hydrogen Production via Thermochemical/Electrochemical Coupling." In ASME 2019 13th International Conference on Energy Sustainability collocated with the ASME 2019 Heat Transfer Summer Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/es2019-3905.

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Abstract A coupled thermochemical/electrochemical cycle was investigated to produce hydrogen from renewable resources. Like a conventional thermochemical cycle, this approach leverages chemical energy stored in a thermochemical working material that is reduced thermally by solar energy. However, in this concept, the stored chemical energy provides only a fraction of the energy required for effectively splitting steam to produce hydrogen. To push the reaction towards completion, an electrically-assisted proton-conducting membrane is employed to separate and recover hydrogen as it is produced. This novel coupled-cycle concept provides several benefits. First, the required oxidation enthalpy of the reversible thermochemical material is decreased, enabling the process to occur at lower temperatures. Second, removing the requirement for spontaneous steam splitting widens the scope of materials compositions, allowing for less expensive/more abundant elements to be used. Lastly, thermodynamics calculations suggest that this concept can potentially reach higher efficiencies than photovoltaic-to-electrolysis hydrogen production. A novel thermochemical/electrochemical test stand was conceptualized and constructed to prove the concept, and the practical feasibility of the proposed coupled cycle was assessed by validating the individual components of the system: proton conduction across a BaCe0.1Zr0.8Y0.1O3-δ (BCZY18) membrane, thermochemical activity of the CaAl0.2Mn0.8O3−δ (CAM28) working material reduced at 650 °C, and indirect observation of hydrogen production.
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3

Sokol, V., and V. Shulgov. "Electrochemical aluminium oxide technology for production of electronics." In 2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE). IEEE, 2012. http://dx.doi.org/10.1109/omee.2012.6464845.

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4

Stolberg, Lorne, Hugh A. Boniface, Stacey McMahon, Sam Suppiah, and Sandra York. "Electrolysis of the CuCl/HCl Aqueous System for the Production of Nuclear Hydrogen." In Fourth International Topical Meeting on High Temperature Reactor Technology. ASMEDC, 2008. http://dx.doi.org/10.1115/htr2008-58084.

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The copper-chlorine (Cu-Cl) thermochemical cycle uses both heat and electricity to carry out a series of chemical and electrochemical reactions with the net reaction being the splitting of water into hydrogen and oxygen. The process forms a closed loop with all intermediate chemicals being recycled. All of the chemical and electrochemical reactions can be carried out at temperatures that do not exceed about 530°C. Thus, the heat requirement of this process can be satisfied by intermediate temperature nuclear reactors such as the Super Critical Water Reactor (SCWR) developed in Canada by Atomic Energy of Canada Limited (AECL). AECL is particularly interested in developing the electrochemical reactions that comprise the Cu-Cl cycle. There are two variations on the Cu-Cl cycle. In the original cycle copper metal is produced electrochemically by the disproportionation of cuprous chloride (CuCl), which is dissolved in hydrochloric acid (HCl) electrolyte. It is expected that this reaction will be carried out at a temperature that is below 100°C. Hydrogen gas is then produced by a chemical reaction that takes place between the copper metal and gaseous HCl at a temperature of 430–475°C. It was recognized by AECL that these two reaction steps could be replaced by a single electrochemical reaction that generates hydrogen directly. It is expected that this step will also be carried out at a temperature below 100°C. In this process, referred to as the CuCl/HCl electrolysis step, hydrogen gas is produced at the cathode of an electrochemical cell by the reduction of protons that are supplied by aqueous 6 M HCl while cupric chloride (CuCl2) is produced at the anode by the oxidation of CuCl, which is dissolved in 6 M HCl. The CuCl2 that is formed is recycled and is used in a reaction with steam at 400°C to produce a copper oxychloride. This reaction is common to both versions of the Cu-Cl cycle. It is the purpose of this paper to present electrochemical results from both half-cell and single-cell studies carried out to verify and understand the CuCl/HCl electrolysis step. Half-cell electrochemical data is presented that demonstrates the practicality of the electrode reactions. Electrochemical data is presented to show that the CuCl/HCl electrolysis step can be carried out in a single-cell. In both the half-cell and single-cell experiments platinum electrocatalysts are used to carry out the desired reactions.
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5

Sharma, Rajesh, Keith Arnoult, Sunil Kumar Ramasahayam, Saad Azam, Zachary Hicks, Ali Shaikh, and Tito Viswanathan. "Photo-electrochemical hydrogen production using novel carbon based material." In 2014 IEEE Industry Applications Society Annual Meeting. IEEE, 2014. http://dx.doi.org/10.1109/ias.2014.6978345.

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6

Rani, B. Jansi, G. Ravi, and R. Yuvakkumar. "Solvothermal optimization of V2O5 nanostructures for electrochemical energy production." In DAE SOLID STATE PHYSICS SYMPOSIUM 2019. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0017751.

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7

Caldora, Federico Cesar, Juan Pedro Rossi, and Adolfo Pellicano. "Electrochemical Techniques for Corrosion Assessment in Oil Production Systems." In SPE International Symposium on Oilfield Corrosion. Society of Petroleum Engineers, 2004. http://dx.doi.org/10.2118/87569-ms.

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8

Moreno, Daniel, Ayokunle Omosebi, Keemia Abad, Jesse Thompson, and Kunlei Liu. "Electrochemical CO2 Utilization: Scalable System Operation for Formic Acid Production." In American Institute of Chemical Engineers (AIChE) 2020 Annual Meeting November 16-20 2020, Virtual,. US DOE, 2020. http://dx.doi.org/10.2172/1732156.

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9

Gulyaeva, E., M. Sayfetdinova, T. Mamelina, A. Yunkina, and E. Komarova. "Problems of reducing the volume of wastewater in electrochemical production." In International Scientific and Practical Symposium "Materials Science and Technology" (MST2021). AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0098899.

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10

Liu, T., R. Reißner, G. Schiller, and A. Ansar. "Plasma Sprayed Raney Nickel Coatings for Hydrogen Production by Alkaline Water Electrolysis." In ITSC2018, edited by F. Azarmi, K. Balani, H. Li, T. Eden, K. Shinoda, T. Hussain, F. L. Toma, Y. C. Lau, and J. Veilleux. ASM International, 2018. http://dx.doi.org/10.31399/asm.cp.itsc2018p0660.

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Abstract Plasma sprayed coatings of Raney nickel alloys developed as electrodes for hydrogen evolution electrodes in alkaline media, exhibit poor resistance to electrochemical erosion. The aim of this work is to develop an understanding of the correlation between plasma spray process parameters and coating quality and with that improve the electrochemical performance of the coatings. Air plasma spraying with TriplexPro gun was performed using NiAlMo powders. Plasma parameters were varied and particle inflight velocity and temperature was measured by Accuraspray. Coatings were developed for conditions in which particles in-flight temperatures were comparable but in-flight velocities differed. Electrochemical tests were performed for evaluating the effect of different velocities on electrode performance. Coating attained with particles having higher velocity exhibited better electrochemical performance and durability. The microstructure and elements map before and after the electrochemical test performed by SEM and EDX show that the coatings with higher velocity particles led to microstructure that enabled better activation of the electrodes and higher surface area for reactions.
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Звіти організацій з теми "Electrochemical production"

1

Ambrosini, Andrea, Sean Michael Babiniec, and James E. Miller. Renewable hydrogen production via thermochemical/electrochemical coupling. Office of Scientific and Technical Information (OSTI), September 2018. http://dx.doi.org/10.2172/1475251.

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2

Ambrosini, Andrea, Sean Michael Babiniec, and James E. Miller. Renewable hydrogen production via thermochemical/electrochemical coupling. Office of Scientific and Technical Information (OSTI), October 2017. http://dx.doi.org/10.2172/1398866.

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3

Lvov, Serguei, Mike Chung, Mark Fedkin, Michele Lewis, Victor Balashov, Elena Chalkova, Nikolay Akinfiev, et al. Advanced Electrochemical Technologies for Hydrogen Production by Alternative Thermochemical Cycles. Office of Scientific and Technical Information (OSTI), January 2011. http://dx.doi.org/10.2172/1001054.

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4

Fujita, Etsuko, and Michael Furey. Electrochemical and Photchemical Syngas Production using Co and Ni Macrocycle Catalysts. Office of Scientific and Technical Information (OSTI), January 2013. http://dx.doi.org/10.2172/1079448.

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5

Chadderdon, Xiaotong Han. Electrochemical conversion of biomass-derived furanics for production of renewable chemicals and fuels. Office of Scientific and Technical Information (OSTI), January 2019. http://dx.doi.org/10.2172/1593368.

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6

Matthiesen, John Edward Zeung. Electrochemical hydrogenation of muconic acid: Application to the production of biorenewable polyamides and polyesters. Office of Scientific and Technical Information (OSTI), November 2017. http://dx.doi.org/10.2172/1593324.

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7

Hu, Hongqiang, Dong Ding, Lane Knighton, Daniel Wendt, and Richard Boardman. Techno-Economic Analysis on an Electrochemical Non-oxidative Deprotonation Process for Ethylene Production from Ethane. Office of Scientific and Technical Information (OSTI), December 2019. http://dx.doi.org/10.2172/1643942.

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8

Cooper, J. F., N. Cherepy, R. Upadhye, A. Pasternak, and M. Steinberg. Direct Carbon Conversion: Review of Production and Electrochemical Conversion of Reactive Carbons, Economics and Potential Impact on the Carbon Cycle. Office of Scientific and Technical Information (OSTI), December 2000. http://dx.doi.org/10.2172/15007473.

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