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Articles de revues sur le sujet « Nanomaterials - Catalytic Applications »

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Auteur : Grafiati
Publié le 7 septembre 2023

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1

Duan, Sibin, Zhe Du, Hongsheng Fan et Rongming Wang. « Nanostructure Optimization of Platinum-Based Nanomaterials for Catalytic Applications ». Nanomaterials 8, no 11 (17 novembre 2018) : 949. http://dx.doi.org/10.3390/nano8110949.

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Platinum-based nanomaterials have attracted much interest for their promising potentials in fields of energy-related and environmental catalysis. Designing and controlling the surface/interface structure of platinum-based nanomaterials at the atomic scale and understanding the structure-property relationship have great significance for optimizing the performances in practical catalytic applications. In this review, the strategies to obtain platinum-based catalysts with fantastic activity and great stability by composition regulation, shape control, three-dimension structure construction, and anchoring onto supports, are presented in detail. Moreover, the structure-property relationship of platinum-based nanomaterials are also exhibited, and a brief outlook are given on the challenges and possible solutions in future development of platinum-based nanomaterials towards catalytic reactions.
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Nasrollahzadeh, Mahmoud, Mohaddeseh Sajjadi, Siavash Iravani et Rajender S. Varma. « Trimetallic Nanoparticles : Greener Synthesis and Their Applications ». Nanomaterials 10, no 9 (9 septembre 2020) : 1784. http://dx.doi.org/10.3390/nano10091784.

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Nanoparticles (NPs) and multifunctional nano-sized materials have significant applications in diverse fields, namely catalysis, sensors, optics, solar energy conversion, cancer therapy/diagnosis, and bioimaging. Trimetallic NPs have found unique catalytic, active food packaging, biomedical, antimicrobial, and sensing applications; they preserve an ever-superior level of catalytic activities and selectivity compared to monometallic and bimetallic nanomaterials. Due to these important applications, a variety of preparation routes, including hydrothermal, microemulsion, selective catalytic reduction, co-precipitation, and microwave-assisted methodologies have been reported for the syntheses of these nanomaterials. As the fabrication of nanomaterials using physicochemical methods often have hazardous and toxic impacts on the environment, there is a vital need to design innovative and well-organized eco-friendly, sustainable, and greener synthetic protocols for their assembly, by applying safer, renewable, and inexpensive materials. In this review, noteworthy recent advancements relating to the applications of trimetallic NPs and nanocomposites comprising these NPs are underscored as well as their eco-friendly and sustainable synthetic preparative options.
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Min, Shengyi, Qiao Yu, Jiaquan Ye, Pengfei Hao, Jiayu Ning, Zhiqiang Hu et Yu Chong. « Nanomaterials with Glucose Oxidase-Mimicking Activity for Biomedical Applications ». Molecules 28, no 12 (7 juin 2023) : 4615. http://dx.doi.org/10.3390/molecules28124615.

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Glucose oxidase (GOD) is an oxidoreductase that catalyzes the aerobic oxidation of glucose into hydrogen peroxide (H2O2) and gluconic acid, which has been widely used in industrial raw materials production, biosensors and cancer treatment. However, natural GOD bears intrinsic disadvantages, such as poor stability and a complex purification process, which undoubtedly restricts its biomedical applications. Fortunately, several artificial nanomaterials have been recently discovered with a GOD-like activity and their catalytic efficiency toward glucose oxidation can be finely optimized for diverse biomedical applications in biosensing and disease treatments. In view of the notable progress of GOD-mimicking nanozymes, this review systematically summarizes the representative GOD-mimicking nanomaterials for the first time and depicts their proposed catalytic mechanisms. We then introduce the efficient modulation strategy to improve the catalytic activity of existing GOD-mimicking nanomaterials. Finally, the potential biomedical applications in glucose detection, DNA bioanalysis and cancer treatment are highlighted. We believe that the development of nanomaterials with a GOD-like activity will expand the application range of GOD-based systems and lead to new opportunities of GOD-mimicking nanomaterials for various biomedical applications.
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Yang, Hualin, Yu Zhou et Juewen Liu. « Porphyrin metalation catalyzed by DNAzymes and nanozymes ». Inorganic Chemistry Frontiers 8, no 9 (2021) : 2183–99. http://dx.doi.org/10.1039/d1qi00105a.

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In this review, DNA and nanomaterial based catalysts for porphyrin metalation reactions are summarized, including the selection of DNAzymes, choice of nanomaterials, their catalytic mechanisms, and applications of the reactions.
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Zhang, Qiao, et Yadong Yin. « Nanomaterials engineering and applications in catalysis ». Pure and Applied Chemistry 86, no 1 (22 janvier 2014) : 53–69. http://dx.doi.org/10.1515/pac-2014-5000.

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Abstract Heterogeneous catalysis utilizing metal particles plays an essential role in the industrial applications. Design and fabrication of highly active catalysts in an efficient and cost-effective way is thus an important topic. The emergence of nanotechnology provides an excellent opportunity for developing new catalysts. In this critical review, we present our efforts and perspective on the recent advances in engineering nanomaterials for catalysis, including synthesis, stabilization, and catalytic applications of nanoparticles. We first briefly summarize the advanced colloidal synthesis of metal nanoparticles using Ag nanoplates as the model system, and then discuss the strategies for stabilization of metal nanoparticles using both chemical and physical approaches. And finally, for practical applications, we have designed and synthesized a highly efficient, stable, and cost-effective TiO2-based photocatalyst by combining both non-metal doping and noble metal decoration.
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Yu, Feng, et Lanbo Di. « Plasma for Energy and Catalytic Nanomaterials ». Nanomaterials 10, no 2 (15 février 2020) : 333. http://dx.doi.org/10.3390/nano10020333.

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Massaro, Marina, Renato Noto et Serena Riela. « Halloysite Nanotubes : Smart Nanomaterials in Catalysis ». Catalysts 12, no 2 (25 janvier 2022) : 149. http://dx.doi.org/10.3390/catal12020149.

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The use of clay minerals as catalyst is renowned since ancient times. Among the different clays used for catalytic purposes, halloysite nanotubes (HNTs) represent valuable resources for industrial applications. This special tubular clay possesses high stability and biocompatibility, resistance against organic solvents, and most importantly be available in large amounts at a low cost. Therefore, HNTs can be efficiently used as catalysts themselves or supports for metal nanoparticles in several catalytic processes. This review reports a comprehensive overview of the relevant advances in the use of halloysite in catalysis, focusing the attention on the last five years.
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8

Wang, Jiaqing, et Hongwei Gu. « Novel Metal Nanomaterials and Their Catalytic Applications ». Molecules 20, no 9 (17 septembre 2015) : 17070–92. http://dx.doi.org/10.3390/molecules200917070.

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Shaik, Mohammed Rafi, Syed Farooq Adil et Mujeeb Khan. « Novel Nanomaterials for Catalytic and Biological Applications ». Crystals 13, no 3 (1 mars 2023) : 427. http://dx.doi.org/10.3390/cryst13030427.

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Currently, nanotechnology has become an integral part of science and technology and has played a crucial role in the development of a variety of technological advancements in different industries [...]
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Pal, Nabanita, Debabrata Chakraborty, Eun-Bum Cho et Jeong Gil Seo. « Recent Developments on the Catalytic and Biosensing Applications of Porous Nanomaterials ». Nanomaterials 13, no 15 (26 juillet 2023) : 2184. http://dx.doi.org/10.3390/nano13152184.

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Nanoscopic materials have demonstrated a versatile role in almost every emerging field of research. Nanomaterials have come to be one of the most important fields of advanced research today due to its controllable particle size in the nanoscale range, capacity to adopt diverse forms and morphologies, high surface area, and involvement of transition and non-transition metals. With the introduction of porosity, nanomaterials have become a more promising candidate than their bulk counterparts in catalysis, biomedicine, drug delivery, and other areas. This review intends to compile a self-contained set of papers related to new synthesis methods and versatile applications of porous nanomaterials that can give a realistic picture of current state-of-the-art research, especially for catalysis and sensor area. Especially, we cover various surface functionalization strategies by improving accessibility and mass transfer limitation of catalytic applications for wide variety of materials, including organic and inorganic materials (metals/metal oxides) with covalent porous organic (COFs) and inorganic (silica/carbon) frameworks, constituting solid backgrounds on porous materials.
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Sharma, Navneet, Himanshu Ojha, Ambika Bharadwaj, Dharam Pal Pathak et Rakesh Kumar Sharma. « Preparation and catalytic applications of nanomaterials : a review ». RSC Advances 5, no 66 (2015) : 53381–403. http://dx.doi.org/10.1039/c5ra06778b.

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Chen, Huige, Run Shi et Tierui Zhang. « Nanostructured Photothermal Materials for Environmental and Catalytic Applications ». Molecules 26, no 24 (13 décembre 2021) : 7552. http://dx.doi.org/10.3390/molecules26247552.

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Solar energy is a green and sustainable clean energy source. Its rational use can alleviate the energy crisis and environmental pollution. Directly converting solar energy into heat energy is the most efficient method among all solar conversion strategies. Recently, various environmental and energy applications based on nanostructured photothermal materials stimulated the re-examination of the interfacial solar energy conversion process. The design of photothermal nanomaterials is demonstrated to be critical to promote the solar-to-heat energy conversion and the following physical and chemical processes. This review introduces the latest photothermal nanomaterials and their nanostructure modulation strategies for environmental (seawater evaporation) and catalytic (C1 conversion) applications. We present the research progress of photothermal seawater evaporation based on two-dimensional and three-dimensional porous materials. Then, we describe the progress of photothermal catalysis based on layered double hydroxide derived nanostructures, hydroxylated indium oxide nanostructures, and metal plasmonic nanostructures. Finally, we present our insights concerning the future development of this field.
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Aggarwal, Amit, Meroz Qureshy, Jason Johnson, James D. Batteas, Charles Michael Drain et Diana Samaroo. « Responsive porphyrinoid nanoparticles : development and applications ». Journal of Porphyrins and Phthalocyanines 15, no 05n06 (mai 2011) : 338–49. http://dx.doi.org/10.1142/s1088424611003422.

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The economy of space and materials and the continuously increasing demand for advanced functionalities for diverse technologies requires the development of new synthetic methods. Many nanomaterials have enhanced photophysical and photochemical properties in solutions and/or on surfaces, while others have enhanced chemical properties, compared to the atomic, molecular, or bulk phases. Nanomaterials have a wide range of applications in catalysis, sensors, photonic devices, drug delivery, and as therapeutics for treatment of a variety of diseases. Inorganic nanoparticles are widely studied, but the formation of organic nanomaterials via supramolecular chemistry is more recent, and porphyrinoids are at the forefront of this research because of their optical, chemical, and structural properties. The formation of nanoscaled materials via self-assembly and/or self-organization of molecular subunits is an attractive approach because of reduced energy requirements, simpler molecular subunits, and the material can be adaptive to environmental changes. The presence of biocompatible groups such as peptides, carbohydrates, polyglycols and mixtures of these on the periphery of the porphyrin macrocycle may make nanoparticles suitable for therapeutics. This perspective focuses on responsive, non-crystalline porphyrinoid nanomaterials that are less than about 100 nm in all dimensions and used for catalytic or therapeutic applications.
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Shah, Kwok Wei, et Wenxin Li. « A Review on Catalytic Nanomaterials for Volatile Organic Compounds VOC Removal and Their Applications for Healthy Buildings ». Nanomaterials 9, no 6 (23 juin 2019) : 910. http://dx.doi.org/10.3390/nano9060910.

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In order to improve the indoor air quality, volatile organic compounds (VOCs) can be removed via an efficient approach by using catalysts. This review proposed a comprehensive summary of various nanomaterials for thermal/photo-catalytic removal of VOCs. These representative materials are mainly categorized as carbon-based and metallic oxides materials, and their morphologies, synthesis techniques, and performances have been explained in detail. To improve the indoor and outdoor air quality, the catalytic nanomaterials can be utilized for emerging building applications such as VOC-reduction coatings, paints, air filters, and construction materials. Due to the characteristics of low cost, non-toxic and high chemical stability, metallic oxides such as TiO2 and ZnO have been widely investigated for decades and dominate the application market of VOC-removal catalyst in buildings. Since other catalysts also showed brilliant performance and have been theoretically researched, they can be potential candidates for applications in future healthy buildings. This review will contribute to further knowledge and greater potential applications of promising VOC-reducing catalytic nanomaterials on healthier buildings for a better indoor and outdoor environment well-being.
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15

Wu, Yu, Jie Yu, Hong-Mei Liu et Bo-Qing Xu. « One-Dimensional TiO2 Nanomaterials : Preparation and Catalytic Applications ». Journal of Nanoscience and Nanotechnology 10, no 10 (1 octobre 2010) : 6707–19. http://dx.doi.org/10.1166/jnn.2010.2531.

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Cormode, David P., Lizeng Gao et Hyun Koo. « Emerging Biomedical Applications of Enzyme-Like Catalytic Nanomaterials ». Trends in Biotechnology 36, no 1 (janvier 2018) : 15–29. http://dx.doi.org/10.1016/j.tibtech.2017.09.006.

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Xu, Chunping, Sudipta De, Alina M. Balu, Manuel Ojeda et Rafael Luque. « Mechanochemical synthesis of advanced nanomaterials for catalytic applications ». Chemical Communications 51, no 31 (2015) : 6698–713. http://dx.doi.org/10.1039/c4cc09876e.

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Mechanochemical synthesis emerged as the most advantageous, environmentally sound alternative to traditional routes for nanomaterials preparation with outstanding properties for advanced applications.
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Li, Hongda, Shuai Jian et Mohammed Baalousha. « Applications of Catalytic Nanomaterials in Energy and Environment ». Molecules 28, no 10 (10 mai 2023) : 4000. http://dx.doi.org/10.3390/molecules28104000.

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Strekalova, Anna A., Anastasiya A. Shesterkina, Alexander L. Kustov et Leonid M. Kustov. « Recent Studies on the Application of Microwave-Assisted Method for the Preparation of Heterogeneous Catalysts and Catalytic Hydrogenation Processes ». International Journal of Molecular Sciences 24, no 9 (5 mai 2023) : 8272. http://dx.doi.org/10.3390/ijms24098272.

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Currently, microwave radiation is widely used in various chemical processes in order to intensify them and carry out processes within the framework of “green” chemistry approaches. In the last 10 years, there has been a significant increase in the number of scientific publications on the application of microwaves in catalytic reactions and synthesis of nanomaterials. It is known that heterogeneous catalysts obtained under microwave activation conditions have many advantages, such as improved catalytic characteristics and stability, and the synthesis of nanomaterials is accelerated several times compared to traditional methods used to produce catalysts. The present review article is to summarize the results of modern research on the use of microwave radiation for the synthesis of heterogeneous catalytic nanomaterials and discusses the prospects for research in the field of microwave-induced liquid-phase heterogeneous catalysis in hydrogenation.
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Ratautas, Dalius, et Marius Dagys. « Nanocatalysts Containing Direct Electron Transfer-Capable Oxidoreductases : Recent Advances and Applications ». Catalysts 10, no 1 (19 décembre 2019) : 9. http://dx.doi.org/10.3390/catal10010009.

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Direct electron transfer (DET)-capable oxidoreductases are enzymes that have the ability to transfer/receive electrons directly to/from solid surfaces or nanomaterials, bypassing the need for an additional electron mediator. More than 100 enzymes are known to be capable of working in DET conditions; however, to this day, DET-capable enzymes have been mainly used in designing biofuel cells and biosensors. The rapid advance in (semi) conductive nanomaterial development provided new possibilities to create enzyme-nanoparticle catalysts utilizing properties of DET-capable enzymes and demonstrating catalytic processes never observed before. Briefly, such nanocatalysts combine several cathodic and anodic catalysis performing oxidoreductases into a single nanoparticle surface. Hereby, to the best of our knowledge, we present the first review concerning such nanocatalytic systems involving DET-capable oxidoreductases. We outlook the contemporary applications of DET-capable enzymes, present a principle of operation of nanocatalysts based on DET-capable oxidoreductases, provide a review of state-of-the-art (nano) catalytic systems that have been demonstrated using DET-capable oxidoreductases, and highlight common strategies and challenges that are usually associated with those type catalytic systems. Finally, we end this paper with the concluding discussion, where we present future perspectives and possible research directions.
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Azmi, Nina Suhaity, Md Ashraful Kader et Kafi AKM. « Applications of Nanomaterials for Biosensor Fabrication Based on Redox Enzyme and Protein : A Short Review ». Current Science and Technology 2, no 2 (15 juin 2023) : 20–28. http://dx.doi.org/10.15282/cst.v2i2.9291.

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Redox enzyme and protein modified biosensors are commercially triumphant bioelectronic devices used in the point-of-care analysis. The use of nanotechnology derived nanomaterials during enzyme immobilization creates a synergistic effect by integrating enzyme’s recognition and catalytic properties with the electronic properties of nanomaterials. This synergy improves the biosensor’s sensitivity, conductivity stability, surface-to-volume ratio, selectivity, detection limit and other analytical features. This critical review focuses on the redox enzymes and proteins most frequently used in glucose and hydrogen peroxide sensing, such as horseradish peroxidase (HRP), glucose oxidase (GOx), hemoglobin (HB), and cytochrome C (Cyt c). Besides, we evaluate the state of art of this approach, selection of nanomaterials, preparation and immobilization mechanisms, their role and sensing applications. Besides advantages, the discussions have discussed on the pressing challenges of developing these sensors. This review will guide the research community to develop rational and highly efficient nanomaterial immobilized biosensors.
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Cardoso, Ana R., Manuela F. Frasco, Verónica Serrano, Elvira Fortunato et Maria Goreti Ferreira Sales. « Molecular Imprinting on Nanozymes for Sensing Applications ». Biosensors 11, no 5 (13 mai 2021) : 152. http://dx.doi.org/10.3390/bios11050152.

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As part of the biomimetic enzyme field, nanomaterial-based artificial enzymes, or nanozymes, have been recognized as highly stable and low-cost alternatives to their natural counterparts. The discovery of enzyme-like activities in nanomaterials triggered a broad range of designs with various composition, size, and shape. An overview of the properties of nanozymes is given, including some examples of enzyme mimics for multiple biosensing approaches. The limitations of nanozymes regarding lack of selectivity and low catalytic efficiency may be surpassed by their easy surface modification, and it is possible to tune specific properties. From this perspective, molecularly imprinted polymers have been successfully combined with nanozymes as biomimetic receptors conferring selectivity and improving catalytic performance. Compelling works on constructing imprinted polymer layers on nanozymes to achieve enhanced catalytic efficiency and selective recognition, requisites for broad implementation in biosensing devices, are reviewed. Multimodal biomimetic enzyme-like biosensing platforms can offer additional advantages concerning responsiveness to different microenvironments and external stimuli. Ultimately, progress in biomimetic imprinted nanozymes may open new horizons in a wide range of biosensing applications.
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Mohapatra, Lagnamayee, Dabin Cheon et Seung Hwa Yoo. « Carbon-Based Nanomaterials for Catalytic Wastewater Treatment : A Review ». Molecules 28, no 4 (14 février 2023) : 1805. http://dx.doi.org/10.3390/molecules28041805.

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Carbon-based nanomaterials (CBM) have shown great potential for various environmental applications because of their physical and chemical properties. The unique hybridization properties of CBMs allow for the tailored manipulation of their structures and morphologies. However, owing to poor solar light absorption, and the rapid recombination of photogenerated electron-hole pairs, pristine carbon materials typically have unsatisfactory photocatalytic performances and practical applications. The main challenge in this field is the design of economical, environmentally friendly, and effective photocatalysts. Combining carbonaceous materials with carbonaceous semiconductors of different structures results in unique properties in carbon-based catalysts, which offers a promising approach to achieving efficient application. Here, we review the contribution of CBMs with different dimensions, to the catalytic removal of organic pollutants from wastewater by catalyzing the Fenton reaction and photocatalytic processes. This review, therefore, aims to provide an appropriate direction for empowering improvements in ongoing research work, which will boost future applications and contribute to overcoming the existing limitations in this field.
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Wang, Yange, Rongming Wang et Sibin Duan. « Optimization Methods of Tungsten Oxide-Based Nanostructures as Electrocatalysts for Water Splitting ». Nanomaterials 13, no 11 (25 mai 2023) : 1727. http://dx.doi.org/10.3390/nano13111727.

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Electrocatalytic water splitting, as a sustainable, pollution-free and convenient method of hydrogen production, has attracted the attention of researchers. However, due to the high reaction barrier and slow four-electron transfer process, it is necessary to develop and design efficient electrocatalysts to promote electron transfer and improve reaction kinetics. Tungsten oxide-based nanomaterials have received extensive attention due to their great potential in energy-related and environmental catalysis. To maximize the catalytic efficiency of catalysts in practical applications, it is essential to further understand the structure–property relationship of tungsten oxide-based nanomaterials by controlling the surface/interface structure. In this review, recent methods to enhance the catalytic activities of tungsten oxide-based nanomaterials are reviewed, which are classified into four strategies: morphology regulation, phase control, defect engineering, and heterostructure construction. The structure–property relationship of tungsten oxide-based nanomaterials affected by various strategies is discussed with examples. Finally, the development prospects and challenges in tungsten oxide-based nanomaterials are discussed in the conclusion. We believe that this review provides guidance for researchers to develop more promising electrocatalysts for water splitting.
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Pan, Mingfei, Jingying Yang, Kaixin Liu, Zongjia Yin, Tianyu Ma, Shengmiao Liu, Longhua Xu et Shuo Wang. « Noble Metal Nanostructured Materials for Chemical and Biosensing Systems ». Nanomaterials 10, no 2 (25 janvier 2020) : 209. http://dx.doi.org/10.3390/nano10020209.

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Nanomaterials with unique physical and chemical properties have attracted extensive attention of scientific research and will play an increasingly important role in the future development of science and technology. With the gradual deepening of research, noble metal nanomaterials have been applied in the fields of new energy materials, photoelectric information storage, and nano-enhanced catalysis due to their unique optical, electrical and catalytic properties. Nanostructured materials formed by noble metal elements (Au, Ag, etc.) exhibit remarkable photoelectric properties, good stability and low biotoxicity, which received extensive attention in chemical and biological sensing field and achieved significant research progress. In this paper, the research on the synthesis, modification and sensing application of the existing noble metal nanomaterials is reviewed in detail, which provides a theoretical guidance for further research on the functional properties of such nanostructured materials and their applications of other nanofields.
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Restivo, João, Olívia Salomé Gonçalves Pinto Soares et Manuel Fernando Ribeiro Pereira. « Processing Methods Used in the Fabrication of Macrostructures Containing 1D Carbon Nanomaterials for Catalysis ». Processes 8, no 11 (22 octobre 2020) : 1329. http://dx.doi.org/10.3390/pr8111329.

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A large number of methodologies for fabrication of 1D carbon nanomaterials have been developed in the past few years and are extensively described in the literature. However, for many applications, and in particular in catalysis, a translation of the materials to a macro-structured form is often required towards their use in practical operation conditions. This review intends to describe the available methods currently used for fabrication of such macro-structures, either already applied or with potential for application in the fabrication of macro-structured catalysts containing 1D carbon nanomaterials. A review of the processing methods used in the fabrication of macrostructures containing 1D sp2 hybridized carbon nanomaterials is presented. The carbon nanomaterials here discussed include single- and multi-walled carbon nanotubes, and several types of carbon nanofibers (fishbone, platelet, stacked cup, etc.). As the processing methods used in the fabrication of the macrostructures are generally very similar for any of the carbon nanotubes or nanofibers due to their similar chemical nature (constituted by stacked ordered graphene planes), the review aggregates all under the carbon nanofiber (CNF) moniker. The review is divided into methods where the CNFs are synthesized already in the form of a macrostructure (in situ methods) or where the CNFs are previously synthesized and then further processed into the desired macrostructures (ex situ methods). We highlight in particular the advantages of each approach, including a (non-exhaustive) description of methods commonly described for in situ and ex situ preparation of the catalytic macro-structures. The review proposes methods useful in the preparation of catalytic structures, and thus a number of techniques are left out which are used in the fabrication of CNF-containing structures with no exposure of the carbon materials to reactants due to, for example, complete coverage of the CNF. During the description of the methodologies, several different macrostructures are described. A brief overview of the potential applications of such structures in catalysis is also offered herein, together with a short description of the catalytic potential of CNFs in general.
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Wang, Xinyu, Jiahua Pu, Yi Liu, Fang Ba, Mengkui Cui, Ke Li, Yu Xie et al. « Immobilization of functional nano-objects in living engineered bacterial biofilms for catalytic applications ». National Science Review 6, no 5 (30 juillet 2019) : 929–43. http://dx.doi.org/10.1093/nsr/nwz104.

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Abstract Nanoscale objects feature very large surface-area-to-volume ratios and are now understood as powerful tools for catalysis, but their nature as nanomaterials brings challenges including toxicity and nanomaterial pollution. Immobilization is considered a feasible strategy for addressing these limitations. Here, as a proof-of-concept for the immobilization of nanoscale catalysts in the extracellular matrix of bacterial biofilms, we genetically engineered amyloid monomers of the Escherichia coli curli nanofiber system that are secreted and can self-assemble and anchor nano-objects in a spatially precise manner. We demonstrated three scalable, tunable and reusable catalysis systems: biofilm-anchored gold nanoparticles to reduce nitro aromatic compounds such as the pollutant p-nitrophenol, biofilm-anchored hybrid Cd0.9Zn0.1S quantum dots and gold nanoparticles to degrade organic dyes and biofilm-anchored CdSeS@ZnS quantum dots in a semi-artificial photosynthesis system for hydrogen production. Our work demonstrates how the ability of biofilms to grow in scalable and complex spatial arrangements can be exploited for catalytic applications and clearly illustrates the design utility of segregating high-energy nano-objects from injury-prone cellular components by engineering anchoring points in an extracellular matrix.
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Basak, Soumyadeep, et Gopinath Packirisamy. « Graphene‐Based Nanomaterials for Biomedical, Catalytic, and Energy Applications ». ChemistrySelect 6, no 36 (23 septembre 2021) : 9669–83. http://dx.doi.org/10.1002/slct.202101975.

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TA, Na, Jingyue LIU (Jimmy) et Wenjie SHEN. « Tuning the shape of ceria nanomaterials for catalytic applications ». Chinese Journal of Catalysis 34, no 5 (mai 2013) : 838–50. http://dx.doi.org/10.1016/s1872-2067(12)60573-7.

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Zhu, Wei, Zheng Chen, Yuan Pan, Ruoyun Dai, Yue Wu, Zhongbin Zhuang, Dingsheng Wang, Qing Peng, Chen Chen et Yadong Li. « Functionalization of Hollow Nanomaterials for Catalytic Applications : Nanoreactor Construction ». Advanced Materials 31, no 38 (20 août 2018) : 1800426. http://dx.doi.org/10.1002/adma.201800426.

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Li, Chenchen, Jinghui Yang, Rui Xu, Huan Wang, Yong Zhang et Qin Wei. « Progress and Prospects of Electrochemiluminescence Biosensors Based on Porous Nanomaterials ». Biosensors 12, no 7 (11 juillet 2022) : 508. http://dx.doi.org/10.3390/bios12070508.

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Porous nanomaterials have attracted much attention in the field of electrochemiluminescence (ECL) analysis research because of their large specific surface area, high porosity, possession of multiple functional groups, and ease of modification. Porous nanomaterials can not only serve as good carriers for loading ECL luminophores to prepare nanomaterials with excellent luminescence properties, but they also have a good electrical conductivity to facilitate charge transfer and substance exchange between electrode surfaces and solutions. In particular, some porous nanomaterials with special functional groups or centered on metals even possess excellent catalytic properties that can enhance the ECL response of the system. ECL composites prepared based on porous nanomaterials have a wide range of applications in the field of ECL biosensors due to their extraordinary ECL response. In this paper, we reviewed recent research advances in various porous nanomaterials commonly used to fabricate ECL biosensors, such as ordered mesoporous silica (OMS), metal–organic frameworks (MOFs), covalent organic frameworks (COFs) and metal–polydopamine frameworks (MPFs). Their applications in the detection of heavy metal ions, small molecules, proteins and nucleic acids are also summarized. The challenges and prospects of constructing ECL biosensors based on porous nanomaterials are further discussed. We hope that this review will provide the reader with a comprehensive understanding of the development of porous nanomaterial-based ECL systems in analytical biosensors and materials science.
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Azam, Tayyaba, Fawad Ahmad et Zaheer Ahmad. « Critical Review on Synthetic Routes and Catalytic Applications of Hollow Nanomaterials ». Research and Analysis Journal 5, no 8 (25 août 2022) : 36–57. http://dx.doi.org/10.18535/raj.v5i8.327.

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The significant trend for the improvement of material’s performance is increasing of their surface area, pore volume and surface to volume ratio. That leads huge attention from various fields and scientists. Hollow nanomaterials are unique materials to evolve because of special attributions like surface area as these materials have wide surfaces than their solid counterparts. Synthesis of hollow nanomaterials (HNMs) is very challenging and important in the grown era of industrialization. The common synthetic strategies are hard-template, self-template, soft template, template free and simple methods. The characterization tools are scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Hollow nanomaterials have wide range applications in catalysis, sensors, lithium ion batteries, water treatment, drug delivery, nanoreactors and dye sensitized solar cells etc. Herein we had summarized the strategies for preparation of HNMs and their applications.
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Kehoe, Daniel K., Sarah A. McCarthy et Yurii K. Gun'ko. « Tunable synthesis of ultrathin AuAg nanowires and their catalytic applications ». Nanoscale 11, no 10 (2019) : 4328–36. http://dx.doi.org/10.1039/c8nr09236b.

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Tellez-Cruz, Miriam M., Jorge Escorihuela, Omar Solorza-Feria et Vicente Compañ. « Proton Exchange Membrane Fuel Cells (PEMFCs) : Advances and Challenges ». Polymers 13, no 18 (10 septembre 2021) : 3064. http://dx.doi.org/10.3390/polym13183064.

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The study of the electrochemical catalyst conversion of renewable electricity and carbon oxides into chemical fuels attracts a great deal of attention by different researchers. The main role of this process is in mitigating the worldwide energy crisis through a closed technological carbon cycle, where chemical fuels, such as hydrogen, are stored and reconverted to electricity via electrochemical reaction processes in fuel cells. The scientific community focuses its efforts on the development of high-performance polymeric membranes together with nanomaterials with high catalytic activity and stability in order to reduce the platinum group metal applied as a cathode to build stacks of proton exchange membrane fuel cells (PEMFCs) to work at low and moderate temperatures. The design of new conductive membranes and nanoparticles (NPs) whose morphology directly affects their catalytic properties is of utmost importance. Nanoparticle morphologies, like cubes, octahedrons, icosahedrons, bipyramids, plates, and polyhedrons, among others, are widely studied for catalysis applications. The recent progress around the high catalytic activity has focused on the stabilizing agents and their potential impact on nanomaterial synthesis to induce changes in the morphology of NPs.
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Gawande, Manoj B., Anandarup Goswami, Tewodros Asefa, Huizhang Guo, Ankush V. Biradar, Dong-Liang Peng, Radek Zboril et Rajender S. Varma. « Core–shell nanoparticles : synthesis and applications in catalysis and electrocatalysis ». Chemical Society Reviews 44, no 21 (2015) : 7540–90. http://dx.doi.org/10.1039/c5cs00343a.

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Core–shell nanomaterials with a broad range of catalytic and electrocatalytic applications are summarized for an array of organic transformations namely oxidation, reduction, oxygen storage, and coupling reactions.
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Chitkara, Mansi, Karamjit Singh, Tinu Bansal, I. S. Sandhu et H. S. Bhatti. « Photo-Catalytic Activity of Quencher Impurity Doped ZnS Nanocrystals ». Advanced Materials Research 93-94 (janvier 2010) : 288–91. http://dx.doi.org/10.4028/www.scientific.net/amr.93-94.288.

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Intrinsic and extrinsic semiconductor nanocrystals seem to be good candidates for modern era optoelectronic and photo-catalytic applications due to their size tunable photo-physical and photo-chemical properties. In the present investigation, polyvinyl pyrrolidone (PVP) capped quencher impurity (Ni) doped ZnS nanocrystals have been synthesized using facile bottom-up synthesis technique; colloidal chemical co-precipitation method. Crystallographic and morphological characterization of synthesized nanomaterials have been carried out using X-ray diffraction (XRD) and transmission electron microscope (TEM), respectively. Photo-catalytic activity of the synthesized nanomaterials has been studied using methylene blue (MB) dye as a test contaminant. Photo-catalytic behavior dependence on dopant concentration, UV radiation curing and annealing of synthesized semiconductor nanomaterials have been studied in detail under sun light exposure.
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Zümreoglu-Karan, Birgül, et Ahmet Ay. « Layered double hydroxides — multifunctional nanomaterials ». Chemical Papers 66, no 1 (1 janvier 2012) : 1–10. http://dx.doi.org/10.2478/s11696-011-0100-8.

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AbstractLayered double hydroxides (LDH’s), also known as anionic clays, are lamellar inorganic solids. The structure of most of them corresponds to that of mineral hydrotalcite, consisting of brucite-like hydroxide sheets, where partial substitution of trivalent or divalent cations results in a positive sheet charge compensated by reversibly exchangeable anions within interlayer galleries. These layered materials have good intercalation properties capturing inorganic and organic ions and they are promising materials for a large number of practical applications, both for direct preparation and for after thermal treatment.Over the past decade, significant interest has been devoted to the synthesis of LDHs with new compositions allowing improved applications in many areas. This contribution reviews the recent advances in water treatment, nuclear waste treatment/storage, catalytic, industrial, and advanced applications and biomedical applications of LDH-based nanomaterials.
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Liu, Hui, Yan Feng, Dong Chen, Chengyin Li, Penglei Cui et Jun Yang. « Noble metal-based composite nanomaterials fabricated via solution-based approaches ». Journal of Materials Chemistry A 3, no 7 (2015) : 3182–223. http://dx.doi.org/10.1039/c4ta05801a.

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Xu, Yong, Lei Chen, Xuchun Wang, Weitang Yao et Qiao Zhang. « Recent advances in noble metal based composite nanocatalysts : colloidal synthesis, properties, and catalytic applications ». Nanoscale 7, no 24 (2015) : 10559–83. http://dx.doi.org/10.1039/c5nr02216a.

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Mishra, Soumya Ranjan, et Md Ahmaruzzaman. « Tin oxide based nanostructured materials : synthesis and potential applications ». Nanoscale 14, no 5 (2022) : 1566–605. http://dx.doi.org/10.1039/d1nr07040a.

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In view of their inimitable characteristics and properties, SnO2 nanomaterials and nanocomposites have been used not only in the field of diverse advanced catalytic technologies and sensors but also in the field of energy storage, and energy production.
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Wang, Ai-Jun, Hua Li, Hong Huang, Zhao-Sheng Qian et Jiu-Ju Feng. « Fluorescent graphene-like carbon nitrides : synthesis, properties and applications ». Journal of Materials Chemistry C 4, no 35 (2016) : 8146–60. http://dx.doi.org/10.1039/c6tc02330d.

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FL GCNs are a type of promising graphene-like nanomaterials, due to their large specific surface area, good biocompatibility, and optoelectronic and catalytic features. Herein, we have systematically described the different synthetic routes, properties and applications of FL GCNs.
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Li, Huangxu, Xichen Zhou, Wei Zhai, Shiyao Lu, Jinzhe Liang, Zhen He, Huiwu Long et al. « Phase Engineering of Nanomaterials for Clean Energy and Catalytic Applications ». Advanced Energy Materials 10, no 40 (31 août 2020) : 2002019. http://dx.doi.org/10.1002/aenm.202002019.

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Sharma, Navneet, Himanshu Ojha, Ambika Bharadwaj, Dharam Pal Pathak et Rakesh Kumar Sharma. « ChemInform Abstract : Preparation and Catalytic Applications of Nanomaterials : A Review ». ChemInform 46, no 33 (28 juillet 2015) : no. http://dx.doi.org/10.1002/chin.201533252.

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Xu, Chunping, Sudipta De, Alina M. Balu, Manuel Ojeda et Rafael Luque. « ChemInform Abstract : Mechanochemical Synthesis of Advanced Nanomaterials for Catalytic Applications ». ChemInform 46, no 23 (22 mai 2015) : no. http://dx.doi.org/10.1002/chin.201523275.

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Czarnecka, Joanna, Mateusz Kwiatkowski, Marek Wiśniewski et Katarzyna Roszek. « Protein Corona Hinders N-CQDs Oxidative Potential and Favors Their Application as Nanobiocatalytic System ». International Journal of Molecular Sciences 22, no 15 (29 juillet 2021) : 8136. http://dx.doi.org/10.3390/ijms22158136.

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The oxidative properties of nanomaterials arouse legitimate concerns about oxidative damage in biological systems. On the other hand, the undisputable benefits of nanomaterials promote them for biomedical applications; thus, the strategies to reduce oxidative potential are urgently needed. We aimed at analysis of nitrogen-containing carbon quantum dots (N-CQDs) in terms of their biocompatibility and internalization by different cells. Surprisingly, N-CQD uptake does not contribute to the increased oxidative stress inside cells and lacks cytotoxic influence even at high concentrations, primarily through protein corona formation. We proved experimentally that the protein coating effectively limits the oxidative capacity of N-CQDs. Thus, N-CQDs served as an immobilization support for three different enzymes with the potential to be used as therapeutics. Various kinetic parameters of immobilized enzymes were analyzed. Regardless of the enzyme structure and type of reaction catalyzed, adsorption on the nanocarrier resulted in increased catalytic efficiency. The enzymatic-protein-to-nanomaterial ratio is the pivotal factor determining the course of kinetic parameter changes that can be tailored for enzyme application. We conclude that the above properties of N-CQDs make them an ideal support for enzymatic drugs required for multiple biomedical applications, including personalized medical therapies.
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Pal, Jaya, et Tarasankar Pal. « Faceted metal and metal oxide nanoparticles : design, fabrication and catalysis ». Nanoscale 7, no 34 (2015) : 14159–90. http://dx.doi.org/10.1039/c5nr03395k.

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Sial, Atif, Afzal Ahmed Dar, Yifan Li et Chuanyi Wang. « Plasmon-Induced Semiconductor-Based Photo-Thermal Catalysis : Fundamentals, Critical Aspects, Design, and Applications ». Photochem 2, no 4 (2 octobre 2022) : 810–30. http://dx.doi.org/10.3390/photochem2040052.

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Photo-thermal catalysis is among the most effective alternative pathways used to perform chemical reactions under solar irradiation. The synergistic contributions of heat and light during photo-thermal catalytic processes can effectively improve reaction efficiency and alter design selectivity, even under operational instability. The present review focuses on the recent advances in photo-thermal-driven chemical reactions, basic physics behind the localized surface plasmon resonance (LSPR) formation and enhancement, pathways of charge carrier generation and transfer between plasmonic nanostructures and photo-thermal conversion, critical aspects influencing photo-thermal catalytic performance, tailored symmetry, and morphology engineering used to design efficient photo-thermal catalytic systems. By highlighting the multifield coupling benefits of plasmonic nanomaterials and semiconductor oxides, we summarized and discussed several recently developed photo-thermal catalysts and their catalytic performance in energy production (CO2 conversion and H2 dissociation), environmental protection (VOCs and dyes degradation), and organic compound synthesis (Olefins). Finally, the difficulties and future endeavors related to the design and engineering of photo-thermal catalysts were pointed out to draw the attention of researchers to this sustainable technology used for maximum solar energy utilization.
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da Silva, Anderson G. M., Thenner S. Rodrigues, Sarah J. Haigh et Pedro H. C. Camargo. « Galvanic replacement reaction : recent developments for engineering metal nanostructures towards catalytic applications ». Chemical Communications 53, no 53 (2017) : 7135–48. http://dx.doi.org/10.1039/c7cc02352a.

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Burpo, F. John, Enoch A. Nagelli, Anchor R. Losch, Jack K. Bui, Gregory T. Forcherio, David R. Baker, Joshua P. McClure, Stephen F. Bartolucci et Deryn D. Chu. « Salt-Templated Platinum-Copper Porous Macrobeams for Ethanol Oxidation ». Catalysts 9, no 8 (2 août 2019) : 662. http://dx.doi.org/10.3390/catal9080662.

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Platinum nanomaterials provide an excellent catalytic activity for diverse applications and given its high cost, platinum alloys and bi-metallic nanomaterials with transition metals are appealing for low cost and catalytic specificity. Here the synthesis of hierarchically porous Pt–Cu macrobeams and macrotubes templated from Magnus’s salt derivative needles is demonstrated. The metal composition was controlled through the combination of [PtCl4]2− with [Pt(NH3)4]2+ and [Cu(NH3)4]2+ ions in different ratios to form salt needle templates. Polycrystalline Pt–Cu porous macrotubes and macrobeams 10’ s–100’ s μm long with square cross-sections were formed through chemical reduction with dimethylamine borane (DMAB) and NaBH4, respectively. Specific capacitance as high as 20.7 F/g was demonstrated with cyclic voltammetry. For macrotubes and macrobeams synthesized from Pt2−:Pt2+:Cu2+ salt ratios of 1:1:0, 2:1:1, 3:1:2, and 1:0:1, DMAB reduced 3:1:2 macrotubes demonstrated the highest ethanol oxidation peak currents of 12.0 A/g at 0.5 mV/s and is attributed to the combination of a highly porous structure and platinum enriched surface. Salt templates with electrochemical reduction are suggested as a rapid, scalable, and tunable platform to achieve a wide range of 3-dimensional porous metal, alloy, and multi-metallic nanomaterials for catalysis, sensor, and energy storage applications.
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Duan, Huiyu, Tong Wang, Ziyun Su, Huan Pang et Changyun Chen. « Recent progress and challenges in plasmonic nanomaterials ». Nanotechnology Reviews 11, no 1 (1 janvier 2022) : 846–73. http://dx.doi.org/10.1515/ntrev-2022-0039.

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Abstract Owing to their optical, mechanical, and catalytic properties, plasmonic nanomaterials (P-NMs) have been widely used in sensing, disease treatment, as well as energy transfer and conversion applications. Therefore, the synthesis, properties, and applications of P-NMs have garnered significant interest in recent decades. This review surveys the various types of P-NMs, their synthesis methods, their properties, and recent applications. In addition, we summarize the current challenges and future developments in P-NMs. We hope this article will help researchers to gain a deeper understanding of P-NM applications in the field of energy, overcome the current problems associated with P-NMs, and develop novel P-NMs with better characteristics.
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