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Morphology Control Of Noble Metal Nanoparticle Catalysts Using Strategic Organic Capping Agents In Colloidal Phase Synthesis
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Book Synopsis Morphology Control of Noble Metal Nanoparticle Catalysts Using Strategic Organic Capping Agents in Colloidal Phase Synthesis by : Kayla Mae Roeser
Download or read book Morphology Control of Noble Metal Nanoparticle Catalysts Using Strategic Organic Capping Agents in Colloidal Phase Synthesis written by Kayla Mae Roeser and published by . This book was released on 2014 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Noble metals are the most sought after elements for catalysis because of their versatility, activity, and recyclability for a variety of applications; however they are limited as a resource and expensive. Noble metal nanoparticles offer a solution for use in catalysis because their high surface area to volume ratio maximizes their available surface sites while minimizing the amount of metal used. Additionally, particularly exposed facets of nanoparticles can increase surface energies for superior catalytic activity and induce novel electronic/physical properties. In the first chapter of my thesis, I synthesized palladium, platinum, and semiconductor titania nanoparticles through a biomimetic approach by using peptides to preferentially bind to and expose particular crystal facets of nanoparticles. Using a combinatorial approach called biopanning to find highly selective surface energy modifiers for particular facets of materials gave insight to unique binding motifs for materials as well as induced morphology controlled nanoparticles at ambient conditions. There are limitless combinations of solvents, capping agents, and inorganic precursors for inorganic nanoparticle synthesis. Understanding these systems in terms of more global trends would circumvent the current colossal approach of empirically screening systems. To do this, considering the inorganic-organic interfacial relationship is key. In the second chapter, I report unique aryl small molecules which preferentially bind to palladium surfaces through electrostatic potentials and epitaxial binding in nanoparticle synthesis. These results offer an understanding to the dynamic binding relationship between capping agents and nanoparticle surfaces. Lastly, I report on the synthesis of gold-palladium nanoparticles and their activity for the benzyl alcohol oxidation reaction. It was found that the (100) facets of gold-palladium were more catalytically active than the (111) surface. Details of the nanoparticle shape, size, and activity add to the understanding how this material behaves at the atomic level and will help to impact future advances in this field of catalysis. The syntheses described here are important because they are environmentally friendly, they offer information about the binding mechanisms at the organic-inorganic interface of the systems, and give insight to catalytic behavior. All of this work is necessary to further exploit nanoparticle synthesis, assembly and provide the precise engineering of nanostructured materials.
Book Synopsis Morphology Control in Colloidal Metal Nanoparticle Synthesis and Their Application to Catalysis by : Romen Padilla
Download or read book Morphology Control in Colloidal Metal Nanoparticle Synthesis and Their Application to Catalysis written by Romen Padilla and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Metal Nanocrystals by : Kallum M. Koczkur
Download or read book Metal Nanocrystals written by Kallum M. Koczkur and published by American Chemical Society. This book was released on 2020-07-31 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our society depends heavily on metals. They are ubiquitous construction materials, critical interconnects in integrated circuits, common coinage materials, and more. Excitingly, new uses for metals are emerging with the advent of nanoscience, as metal crystals with nanoscale dimensions can display new and tunable properties. The optical and photothermal properties of metal nanocrystals have led to cancer diagnosis and treatment platforms now in clinical trials, while, at the same time, the ability to tune the surface features of metal nanocrystals is giving rise to designer catalysts that enable more sustainable use of precious resources. These are just two examples of how metal nanocrystals are addressing important social needs.
Book Synopsis Colloidal Strategies for Controlling the Morphology, Composition, and Crystal Structure of Inorganic Nanoparticles by : James Hodges
Download or read book Colloidal Strategies for Controlling the Morphology, Composition, and Crystal Structure of Inorganic Nanoparticles written by James Hodges and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Emerging applications and fundamental studies require nanomaterials with increasingly sophisticated architectures that have precise composition, morphology, and crystal structure. Colloidal nanochemistry has emerged as one of the most effective methods for generating high quality, monodisperse nanoparticles with diverse structural features and highly complex geometries. These wet-chemical approaches offer an array of synthetic levers that can be used to tailor nanoparticles for targeted applications, and deliver solution-dispersible solids that are easily integrated onto device architectures. Additionally, colloidal nanoparticles can be used as building blocks for constructing periodic superlattices and multicomponent hybrid nanoparticles, which offer unique properties that can support next-generation technologies. As the applications for colloidal nanoparticles continue to expand, the architectural and compositional requirements for these materials are becoming increasingly rigid. Conventional colloidal methods are effective for generating diverse nanoparticle systems, but rely on complex nucleation and growth processes, which are often poorly understood and difficult to control in dynamic reaction environments. For these reasons, there are a number of high profile nanoparticle targets that remain out of reach. Accordingly, new approaches are needed that can circumvent these synthetic bottlenecks and narrow the growing disconnect between nano-design and synthetic capability. In this dissertation, I present several colloidal strategies for engineering synthetically challenging nanomaterials using multistep reaction sequences that, in many ways, parallel the total-synthesis framework that organic chemists use to access complex molecules. A variety of approaches are discussed, including nanoscale ion exchange transformations and seeded-growth protocol for constructing multicomponent hybrid nanoparticles. First, I demonstrate that solution-mediated anion and cation exchange can be integrated into one multistep reaction sequence, which leads to a complete material transformation of a pre-synthesized nanotemplate. Importantly, although the final product does not contain any of the original elements, the morphology is retained, effectively decoupling morphology and composition control. Next, I demonstrate that both anion and cation sublattice features of preformed Cu2-xS nanocrystals can be retained during cation exchange with Co2+ and Mn2+, yielding wurtzite-type CoS and MnS polymorphs that are metastable in bulk systems. This study was enabled by new cation exchange chemistry with previously unexplored 3d transition metal systems, and offers new guidelines for predictably targeting sublattice features in colloidal nanomaterials. To conclude the dissertation, I offer two studies investigating the seeded-growth synthesis of three-component Ag-Pt-Fe3O4 heterotrimer nanoparticles, which are generated by adding a Ag domain to preformed Pt-Fe3O4 heterodimers. First, to gain access to the alternate Pt-Fe3O4-Ag configuration, I demonstrate that a thin iron oxide shell can be applied to the Pt surface of the Pt-Fe3O4 seeds, which acts as a solid-state protecting group that can direct Ag growth onto the Fe3O4 domain, producing the otherwise inaccessible Pt-Fe3O4-Ag architecture. This strategy is inspired by similar techniques used in organic synthesis, and represents an important addition to the total synthesis toolbox used to construct colloidal hybrid nanoparticles. Finally, I offer an in-depth microscopic investigation that probes the chemoselective addition of Ag to Pt-Fe3O4 to form the Ag-Pt-Fe3O4 heterotrimer product. This study reveals that Ag indiscriminately nucleates on both the Pt and Fe3O4 domains of the Pt-Fe3O4 seeds during the early stages of the reaction, followed by a surface-mediated coalescence of Ag onto the Pt domain to yield the Ag-Pt-Fe3O4 configuration. The mechanistic insights gained in this work provide new design criteria for synthesizing multicomponent hybrid nanoparticle systems with targeted configurations.
Book Synopsis Selectivity in Catalysis by : Mark E. Davis
Download or read book Selectivity in Catalysis written by Mark E. Davis and published by . This book was released on 1993 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses recent research and provides tutorial chapters on enhancing selectivity in catalysis through stereoselectivity, reaction pathway control, shape selectivity, and alloys and clusters. Presents an interdisciplinary approach to increasing selectivity in homogeneous and heterogeneous catalysis research. Includes an overview chapter that discusses the current state of the field and offers a perspective on future directions.
Book Synopsis Nanoparticles in Catalysis by : Karine Philippot
Download or read book Nanoparticles in Catalysis written by Karine Philippot and published by John Wiley & Sons. This book was released on 2021-04-29 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanoparticles in Catalysis Discover an essential overview of recent advances and trends in nanoparticle catalysis Catalysis in the presence of metal nanoparticles is an important and rapidly developing research field at the frontier of homogeneous and heterogeneous catalysis. In Nanoparticles in Catalysis, accomplished chemists and authors Karine Philippot and Alain Roucoux deliver a comprehensive guide to the key aspects of nanoparticle catalysis, ranging from synthesis, activation methodology, characterization, and theoretical modeling, to application in important catalytic reactions, like hydrogen production and biomass conversion. The book offers readers a review of modern and efficient tools for the synthesis of nanoparticles in solution or onto supports. It emphasizes the application of metal nanoparticles in important catalytic reactions and includes chapters on activation methodology and supported nanoclusters. Written by an international team of leading voices in the field, Nanoparticles in Catalysis is an indispensable resource for researchers and professionals in academia and industry alike. Readers will also benefit from the inclusion of: A thorough introduction to New Trends in the Design of Metal Nanoparticles and Derived Nanomaterials for Catalysis An exploration of Dynamic Catalysis and the Interface Between Molecular and Heterogeneous Catalysts A practical discussion of Metal Nanoparticles in Water: A Relevant Toolbox for Green Catalysis Organometallic Metal Nanoparticles for Catalysis A concise treatment of the opportunities and challenges of CO2 Hydrogenation to Oxygenated Chemicals Over Supported Nanoparticle Catalysts Perfect for catalytic, organic, inorganic, and physical chemists, Nanoparticles in Catalysis will also earn a place in the libraries of chemists working with organometallics and materials scientists seeking a one-stop resource with expert knowledge on the synthesis and characterization of nanoparticle catalysis.
Book Synopsis Noble Metal-Based Nanocomposites by : Jun Yang
Download or read book Noble Metal-Based Nanocomposites written by Jun Yang and published by John Wiley & Sons. This book was released on 2019-06-10 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a systematic and coherent picture of the solution-based methods for the preparation of noble metal-based composite nanomaterials, their characterization, and potential applications in electrocatalysis Within the last decade, the development of wet-chemistry methods has led to the blossom of research in composite nanomaterials. However, the design and synthesis of composite nanomaterials with controlled properties remains a significant challenge. This book summarizes the solution-based methods for the preparation of noble metal-based composite nanomaterials. It examines their characterization, as well as their use in electrocatalysis. It also discusses the intrinsic relationship between the catalytic properties and the physical /chemical effects in the composite materials, and offers some perspectives for the future development of metal-based composite nanomaterials. In addition, the book not only provides a systematic and coherent picture of this field, but also inspires rethinking of the current processing technologies. Noble Metal-Based Nanocomposites: Preparation and Applications offers in-depth chapter coverage of ethanol-mediated phase transfer of metal ions and nanoparticles. It presents the full range of nanocomposites consisting of chalcogenide semiconductors and gold, silver sulfide, or other noble metals. It also examines core-shell structured cadmium selenide-platinum nanocomposites; Pt-containing Ag2S-noble metal nanocomposites for direct methanol fuel cells operated at high fuel concentrations; and nanocomposites consisting of metal oxides and noble metals. In addition, the book looks at scientific issues derived from noble metal-based nanocomposites. -Covers all of the preparations of noble metal-based nanocomposites and their numerous applications -Highlights some of the recent breakthroughs in the design, engineering, and applications of noble metal-based nanocomposites -Appeals to a wide range audience, especially researchers in the areas of catalysis, chemistry, chemical engineering, materials synthesis and characterization, and fuel cell Noble Metal-Based Nanocomposites: Preparation and Applications is an excellent book for inorganic chemists, materials scientists, catalytic chemists, chemical engineers, and those interested in the subject.
Book Synopsis Metal Oxide Nanoparticles in Organic Solvents by : Markus Niederberger
Download or read book Metal Oxide Nanoparticles in Organic Solvents written by Markus Niederberger and published by Springer Science & Business Media. This book was released on 2009-09-17 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal Oxide Nanoparticles in Organic Solvents discusses recent advances in the chemistry involved for the controlled synthesis and assembly of metal oxide nanoparticles, the characterizations required by such nanoobjects, and their size and shape depending properties. In the last few years, a valuable alternative to the well-known aqueous sol-gel processes was developed in the form of nonaqueous solution routes. Metal Oxide Nanoparticles in Organic Solvents reviews and compares surfactant- and solvent-controlled routes, as well as providing an overview of techniques for the characterization of metal oxide nanoparticles, crystallization pathways, the physical properties of metal oxide nanoparticles, their applications in diverse fields of technology, and their assembly into larger nano- and mesostructures. Researchers and postgraduates in the fields of nanomaterials and sol-gel chemistry will appreciate this book’s informative approach to chemical formation mechanisms in relation to metal oxides.
Book Synopsis Design of Noble Metal Nanostructures for Heterogeneous Catalytic Applications by : Michelle Margarita Flores Espinosa
Download or read book Design of Noble Metal Nanostructures for Heterogeneous Catalytic Applications written by Michelle Margarita Flores Espinosa and published by . This book was released on 2019 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: Worldwide efforts have been focused to introduce greener chemical and energetic processes that drive the society away from the dependency on fossil fuels, looking to reduce the environmental footprint of modern societies. Catalysis for instance, has been for decades the winning technology which helps to improve the efficiency of processes in petrochemical, pharmaceutical, and biomedical industries to mention a few. Efficiency of catalysts come mostly from its structure and composition which proportionate high activity and selectivity. However, the use of expensive noble metals as catalyst materials remains a key issue for industrial applications. Thus, developing materials that reduce and mitigate carbon dioxide emissions as well as decrease of waste of the materials using during these processes remain a tremendous challenge to overcome. Nanotechnology for instance, is a growing technology with great impact in the industrial,pharmaceutical and energetical sectors. In fact, nanomaterials provide a better economical option, less waste and still with superior performance than their bulk counterparts which is explained from their reduce size, shape and larger surface areas which leads to overall higher catalytic performance. Nanocatalysis modify the rate of a chemical reaction by speeding up or accelerating the reaction rate without being consumed, making the process more energetically favored. Nanocatalyst have significant impact in different industrial processes as chemical reactions to produce fine chemicals, or for renewable energy and among others. As it was mentioned previously, the high performance of nanocatalyst is associated with the atoms at the surface of the nanostructure which are known as the active sites for catalysis. Moreover, it is well known that surface atoms placed at the corner or edges of the nanocatalyst are more active than those surface atoms at planes, and it the same manner with surface-to-volume ratio, their number will increase with decrease of particle size. In addition to nanoparticle size, crystallographic facets lead to different shapes or morphologies which are also contributing to the number of atoms at the surface, edges and corners. All of these contributing together to the efficiently performance of nanocatalyst for the target reactions . In this thesis is presented nanocatalyst materials development, and studies about their synergetic effect of the different components for heterogeneous catalytic applications. First, benzaldehyde byproduct is an intermediate in the production of fine chemicals and additives. Tuning selectivity to benzaldehyde is therefore critical in alcohol oxidation reactions at the industrial level where the typical methods employ toxic oxidant chemicals for its production. Herein, we report a simple but innovative method for the synthesis of palladium hydride and nickel palladium hydride nanodendrites with controllable morphology, high stability, and excellent catalytic activity. The synthesized dendrites can maintain the palladium hydride phase even after their use in the chosen catalytic reaction. Remarkably, the high surface area morphology and unique interaction between nickel-rich surface and palladium hydride ( -phase) of these nanodendrites are translated in an enhanced catalytic activity for benzyl alcohol oxidation reaction. Our Ni/PdH0.43 nanodendrites demonstrated a high selectivity towards benzaldehyde of about 92.0% with a conversion rate of 95.4%, showing higher catalytic selectivity than their PdH0.43 counterparts and commercial Pd/C. The present study opens the door for further exploration of metal/metal-hydride nanostructures as next-generation catalytic materials. Second, palladium hydride system (PdHx) has been of great interest primarily due to the high solubility of hydrogen on the palladium fcc (Pd-face centered cubic) lattice which make them suitable candidates as environmental friendly materials for applications in terms of storage and use of energy, having specific relevance in hydrogen storage, fuel cell, batteries, kinetics reversibility studies, and more. Palladium hydride properties do not only include adsorption and desorption of hydrogen, but they are also effective for electrocatalytic applications. Overall, palladium hydride and its alloys properties are strongly correlated with their electronic and crystal structure changes. Thus, a deep understanding and methodology for their production is crucial for their use in the mentioned applications. Despite of the studies found in literature, there is still a lack of studies for direct but simple synthesis of palladium hydride with practical applications. For instance, palladium hydride literature studies are mostly based on in-situ studies where a limitation of sample, stability and reproducibility are some of the major problems associated with them which also leads to a lack of studies related to their properties and how to tune them. Herein, we reported a simple yet well designed method for the synthesis of stable palladium hydride with different morphologies and decoration of its surface with organic ligands which lead to different effects in terms of nanocrystal sizes and the ability of tune of its properties. Upon the use of different capping agents during the synthesis, diverse magnetic properties have arisen, as well as an increase in their hydrogen storage capacity. These properties are found to be different from their counterpart of pure palladium and palladium hydride material without coating agents. Third, developing non-platinum materials with enhance performance for electrocatalytic reactions has been gaining attention in recently years. Palladium and Palladium-based materials are the most suitable candidates to substitute platinum catalysts in anodic and cathodic reactions. Here we developed a facile path to synthesize PdCu nanowires having alloy and intermetallic phases within their structures. To the best of our knowledge, the catalytic properties of *PdCu intermetallic nanowires for hydrogen evolution reaction and formic acid oxidation reaction are higher than their PdCu alloy counterpart and those previously reported for 0D and 1D bimetallic nanostructures. Tafel slopes and overpotential presented here during hydrogen evolution reaction of *PdCu NWs in both acidic and basic conditions are superior than PdCu alloy nanowires, Pd nanowires and comparable to commercial Pt. In terms of formic acid oxidation reaction, *PdCu NWs also exhibits the highest mass activity, followed by PdCu alloy NWs, and being both superior than commercial Pd. In addition, PdCu nanowires also exhibit superior stability for both reactions: hydrogen evolution reaction in acid and basic conditions, and formic acid oxidation reaction as well as good resistance against CO poisoning. Density functional theory (DFT) calculations demonstrate that the improved HER performance at acidic condition is due to the decrease in the hydrogen binding energy of the compressed PdCu-B2 phase, and the improved HER performance at alkaline condition is due to the reduced water dissociation barriers at alkaline condition of *PdCu intermetallic phase.
Book Synopsis Application of Transition Metal Catalysts in Organic Synthesis by : L. Brandsma
Download or read book Application of Transition Metal Catalysts in Organic Synthesis written by L. Brandsma and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Homogeneous catalysis is an important strategy for the synthesis of high-valued chemicals. L. Brandsma has carefully selected and checked the experimental procedures illustrating the catalytic use of copper, nickel, and palladium compounds in organic synthesis. All procedures are on a preparative scale, make economic use of solvents and catalysts, avoid toxic substances and have high yields.
Book Synopsis Nanoparticles in Catalysis by : Shū Kobayashi
Download or read book Nanoparticles in Catalysis written by Shū Kobayashi and published by Springer Nature. This book was released on 2020-11-06 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume discusses the great potential of metal nanoparticle catalysts for complicated molecular synthesis and reviews the current progress of this field. The development of highly active and stable heterogeneous catalysts is a crucial subject in modern science. However, development of heterogeneous catalysts for fine chemical synthesis has lagged far behind those for bulk chemical process. In recent years metal nanoparticle catalysts have been of great interest in this area due to their unique activity, ease of heterogenization, and robustness. Therefore, metal nanoparticle catalysts are an excellent candidate for the above-mentioned active and robust heterogeneous catalysts and this book provides an overview of this area. The present volume summarizes recent progress on nanoparticle catalysis for various organic transformations from simple redox reactions to complex asymmetric C–C bond forming reactions and also presents seminal studies on new technologies. It comprehensively summarizes advances in metal nanoparticle catalysis across several aspects including reaction manners, mechanistic investigations and new synthetic methodologies to encourage the use of metal nanoparticle catalysts for future organic synthesis. This volume will be of interest to students, researchers and professionals focused on the next-generation of fine chemical synthesis.
Book Synopsis Synthesis, Morphological Control, Dispersion Stabilization and in Situ Self-assembly of Noble Metal Nanostructures Using Multidentate Resorcinarene Surfactants by : Sangbum Han
Download or read book Synthesis, Morphological Control, Dispersion Stabilization and in Situ Self-assembly of Noble Metal Nanostructures Using Multidentate Resorcinarene Surfactants written by Sangbum Han and published by . This book was released on 2016 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biomimetic Synthesis of Noble Metal Nanocrystals and the Mechanism Studies by : Lingyan Ruan
Download or read book Biomimetic Synthesis of Noble Metal Nanocrystals and the Mechanism Studies written by Lingyan Ruan and published by . This book was released on 2014 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanostructured materials with dimensions reaching the nanoscale possess novel properties different from their bulk counterparts. Engineering nanomaterials to exploit their improved functions show important applications in catalysis, electrocatalysis, electronics, optoelectronics, and energy devices. One of the challenges to date is to develop methods for producing nanomaterials in a controllable and predictable fashion. We seek to develop novel biomimetic synthetic protocols for programmable nanomaterial synthesis, i.e., using biomolecules with specific material recognition properties to manipulate nanomaterial morphologies and structures. Starting with three Pt binding peptides with distinct recognition properties, i.e., a Pt material specific peptide BP7A and two Pt facet specific peptides T7 (Pt {100} facet specific) and S7 (Pt {111} facet specific), we demonstrate a rational creation of Pt bipyramids, a new type of shape for Pt nanocrystals. The BP7A peptide is found to be able to introduce twinning during Pt nanocrystal growth. We use it to generate single twinned seeds for Pt nanocrystals. Together with targeted facet stabilization using T7/S7 peptides, Pt {100} bipyramid and {111} bipyramid are successfully synthesized for the first time. We further utilize the twin introducing property of the BP7A peptide to generate ultrathin Pt nanowire with high twin densities. We show that the Pt nanowire possesses higher electrocatalytic activity and durability in oxygen reduction and methanol oxidation reactions due to its one-dimensional nanostructure and the presence of dense twin defects, demonstrating the concept of defect engineering in nanocrystals as a strategy in the design of novel electrocatalyst. The organic-inorganic interface is a key issue in many fields including colloidal syntheses and biomimetics, the understanding of which can enable the design of new material synthetic strategies. We aim to understand how the Pt binding peptides modulate the formations of specific Pt nanostructures. We start with mechanistic investigations on S7 peptide's Pt {111} recognition property, and proceed to studying BP7A peptide's twin introducing property. With combined experimental and computational efforts, we identify the molecular origins of the biorecognition properties of these two peptides. Moreover, we extend extracted biomimetic principles to the rational design/selection of small organic molecules that deliver anticipated traits for controlled colloidal synthesis for other noble metals (Pd and Rh). Overall, we demonstrate the power of biomimetic synthesis in rationally creating nanomaterial structures with novel properties. Our mechanism studies demonstrate the rich information one can derive from biomimetic synthesis, and the broad applicability of biomimetic principles to engineering material structures for many potential applications.
Book Synopsis The Development of Catalysis by : Adriano Zecchina
Download or read book The Development of Catalysis written by Adriano Zecchina and published by John Wiley & Sons. This book was released on 2017-04-03 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gradually brings the reader, through illustrations of the most crucial discoveries, into the modern world of chemical catalysis. Readers and experts will better understand the enormous influence that catalysis has given to the development of modern societies. • Highlights the field's onset up to its modern days, covering the life and achievements of luminaries of the catalytic era • Appeals to general audience in interpretation and analysis, but preserves the precision and clarity of a scientific approach • Fills the gap in publications that cover the history of specific catalytic processes
Book Synopsis Colloidal Nanoparticles for Heterogeneous Catalysis by : Priscila Destro
Download or read book Colloidal Nanoparticles for Heterogeneous Catalysis written by Priscila Destro and published by Springer. This book was released on 2018-12-13 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the formation of colloidal gold–copper (AuCu) alloy nanoparticles and evaluate their application in heterogeneous catalysis. Metal alloys are extremely versatile materials that have been used since the Antiquity to improve the properties of commonly used metals, therefore the understanding of their properties has fostered the applications in areas such as photonics, sensors, clinical diagnostics, and especially in heterogeneous catalysis, which allows catalyst active sites to be modulated. In this book, readers will appreciate the fundamental aspects involved in the synthesis of AuCu nanoalloys, including real-time information about their atomic organization, electronic properties, as well a deeper understand about the behavior of AuCu supported nanoalloys under real catalytic conditions, providing interesting insights about the effect of the support on the nanoalloy stability. The results presented here open new horizons for using metal alloys in catalysis and also other areas where the metal–support interface may play a crucial role.
Book Synopsis Nanoparticles for Catalysis by : Hermenegildo García
Download or read book Nanoparticles for Catalysis written by Hermenegildo García and published by MDPI. This book was released on 2018-07-04 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Nanoparticles for Catalysis" that was published in Nanomaterials
Book Synopsis Nanocatalysis by : Vivek Polshettiwar
Download or read book Nanocatalysis written by Vivek Polshettiwar and published by John Wiley & Sons. This book was released on 2013-09-06 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exhibiting both homogeneous and heterogeneous catalytic properties, nanocatalysts allow for rapid and selective chemical transformations, with the benefits of excellent product yield and ease of catalyst separation and recovery. This book reviews the catalytic performance and the synthesis and characterization of nanocatalysts, examining the current state of the art and pointing the way towards new avenues of research. Moreover, the authors discuss new and emerging applications of nanocatalysts and nanocatalysis, from pharmaceuticals to fine chemicals to renewable energy to biotransformations. Nanocatalysis features contributions from leading research groups around the world. These contributions reflect a thorough review of the current literature as well as the authors’ first-hand experience designing and synthesizing nanocatalysts and developing new applications for them. The book’s nineteen chapters offer a broad perspective, covering: Nanocatalysis for carbon-carbon and carbon-heteroatom coupling reactions Nanocatalysis for various organic transformations in fine chemical synthesis Nanocatalysis for oxidation, hydrogenation, and other related reactions Nanomaterial-based photocatalysis and biocatalysis Nanocatalysts to produce non-conventional energy such as hydrogen and biofuels Nanocatalysts and nano-biocatalysts in the chemical industry Readers will also learn about the latest spectroscopic and microscopy tools used in advanced characterization methods that shed new light on nanocatalysts and nanocatalysis. Moreover, the authors offer expert advice to help readers develop strategies to improve catalytic performance. Summarizing and reviewing all the most important advances in nanocatalysis over the last two decades, this book explains the many advantages of nanocatalysts over conventional homogeneous and heterogeneous catalysts, providing the information and guidance needed for designing green, sustainable catalytic processes.
