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Electrocatalysts For Fuel Cells And Hydrogen Evolution Theory To Design
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Book Synopsis Electrocatalysts for Fuel Cells and Hydrogen Evolution by : Abhijit Ray
Download or read book Electrocatalysts for Fuel Cells and Hydrogen Evolution written by Abhijit Ray and published by BoD – Books on Demand. This book was released on 2018-12-05 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book starts with a theoretical understanding of electrocatalysis in the framework of density functional theory followed by a vivid review of oxygen reduction reactions. A special emphasis has been placed on electrocatalysts for a proton-exchange membrane-based fuel cell where graphene with noble metal dispersion plays a significant role in electron transfer at thermodynamically favourable conditions. The latter part of the book deals with two 2D materials with high economic viability and process ability and MoS2 and WS2 for their prospects in water-splitting from renewable energy.
Book Synopsis Electrocatalysts for Fuel Cells and Hydrogen Evolution - Theory to Design by : Ranjan K. Pati
Download or read book Electrocatalysts for Fuel Cells and Hydrogen Evolution - Theory to Design written by Ranjan K. Pati and published by . This book was released on 2018 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book starts with a theoretical understanding of electrocatalysis in the framework of density functional theory followed by a vivid review of oxygen reduction reactions. A special emphasis has been placed on electrocatalysts for a proton-exchange membrane-based fuel cell where graphene with noble metal dispersion plays a significant role in electron transfer at thermodynamically favourable conditions. The latter part of the book deals with two 2D materials with high economic viability and process ability and MoS2 and WS2 for their prospects in water-splitting from renewable energy.
Book Synopsis Fuel Cell Science by : Andrzej Wieckowski
Download or read book Fuel Cell Science written by Andrzej Wieckowski and published by John Wiley & Sons. This book was released on 2011-02-14 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive survey of theoretical andexperimental concepts in fuel cell chemistry Fuel cell science is undergoing significant development, thanks, in part, to a spectacular evolution of the electrocatalysis concepts, and both new theoretical and experimental methods. Responding to the need for a definitive guide to the field, Fuel Cell Science provides an up-to-date, comprehensive compendium of both theoretical and experimental aspects of the field. Designed to inspire scientists to think about the future of fuel cell technology, Fuel Cell Science addresses the emerging field of bio-electrocatalysis and the theory of heterogeneous reactions in fuel cell science and proposes potential applications for electrochemical energy production. The book is thorough in its coverage of the electron transfer process and structure of the electric double layer, as well as the development of operando measurements. Among other subjects, chapters describe: Recently developed strategies for the design, preparation, and characterization of catalytic materials for fuel cell electrodes, especially for new fuel cell cathodes A wide spectrum of theoretical and computational methods, with?the aim of?developing?new fuel cell catalysis concepts and improving existing designs to increase their performance.? Edited by two leading faculty, the book: Addresses the emerging fields of bio-electrocatalysis for fuel cells and theory of heterogeneous reactions for use in fuel cell catalysis Provides a survey of experimental and theoretical concepts in these new fields Shows the evolution of electrocatalysis concepts Describes the chemical physics of fuel cell reactions Forecasts future developments in electrochemical energy production and conversion Written for electrochemists and electrochemistry graduate students, electrocatalysis researchers, surface and physical chemists, chemical engineers, automotive engineers, and fuel cell and energy-related researchers, this modern compendium can help today's best minds meet the challenges in fuel science technology.
Book Synopsis Electrocatalysts for Low Temperature Fuel Cells by : Thandavarayan Maiyalagan
Download or read book Electrocatalysts for Low Temperature Fuel Cells written by Thandavarayan Maiyalagan and published by John Wiley & Sons. This book was released on 2017-05-08 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: Meeting the need for a text on solutions to conditions which have so far been a drawback for this important and trend-setting technology, this monograph places special emphasis on novel, alternative catalysts of low temperature fuel cells. Comprehensive in its coverage, the text discusses not only the electrochemical, mechanistic, and material scientific background, but also provides extensive chapters on the design and fabrication of electrocatalysts. A valuable resource aimed at multidisciplinary audiences in the fields of academia and industry.
Book Synopsis Electrocatalysis in Fuel Cells by : Minhua Shao
Download or read book Electrocatalysis in Fuel Cells written by Minhua Shao and published by MDPI. This book was released on 2018-09-28 with total page 689 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Electrocatalysis in Fuel Cells" that was published in Catalysts
Book Synopsis Atomically Precise Electrocatalysts for Electrochemical Energy Applications by : Anuj Kumar
Download or read book Atomically Precise Electrocatalysts for Electrochemical Energy Applications written by Anuj Kumar and published by Springer Nature. This book was released on with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design and Development of Electrocatalysts and Their Microenvironments for Applications in Fuel Cells by : Jose Andres Zamora Zeledon
Download or read book Design and Development of Electrocatalysts and Their Microenvironments for Applications in Fuel Cells written by Jose Andres Zamora Zeledon and published by . This book was released on 2022 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrocatalysis plays a crucial role in a wide range of renewable and sustainable energy technologies, which are required to create a carbon-neutral or carbon-negative energy ecosystem, ultimately fostering the long-term prosperity of humankind. The oxygen reduction reaction (ORR) is key in electrochemical energy conversion and storage technologies such as fuel cells and metal-air batteries, which, for instance, have the potential to help decarbonize transportation and provide clean intermittent renewable energy storage. However, cheaper electrocatalyst materials with improved ORR activity, 4e--product selectivity, and stability are needed to deploy these promising technologies at a large scale. Anion exchange membrane fuel cells (AEMFCs) have emerged as a promising complementary alternative to the more mature proton exchange membrane fuel cells (PEMFCs) because the alkaline environment in AEMFCs allows for improved ORR kinetics and wider material stability compared to in the acidic conditions in PEMFCs. Moreover, diversifying ORR catalysts beyond conventional Pt-based materials is crucial for H2 FCs to achieve large scale deployment and thrive as a resilient and robust energy technology. Ag, which is two orders of magnitude cheaper than Pt, has emerged as a promising active, stable, and selective non-precious metal alkaline ORR catalyst. Moreover, Ag-bimetallics are an interesting class of materials for which density functional theory (DFT) modeling has predicted the possibility of intrinsically enhanced ORR kinetics. Ag-Cu, for instance, has already been shown to yield enhanced ORR active sites at certain surface compositions. Studying Ag-bimetallics in a well-controlled and systematic fashion is, therefore, crucial to developing material-property relationships that would aid in the design of optimal catalysts for the ORR and other important electrocatalytic reactions. In addition to catalyst material engineering, it is also important to study the electrolyte effects on electrocatalytic performance to design optimal electrochemical microenvironments. In this dissertation, I employ a wide range of complementary physical and electrochemical methods, in conjunction with DFT, to understand how to engineer high performing electrocatalysts. Specifically, I systematically synthesize, characterize, and test Ag-Pd and Ag-Mn alkaline ORR electrocatalysts, ultimately, establishing the fundamental material-property relationships attributed to the measured intrinsic catalyst performance as a function of composition and structure. The use of physical vapor deposition (PVD) is crucial for the systematic catalyst design and development in my work. Moreover, using PVD as a bridge between fundamental rotating disk electrode (RDE) and applied FC device studies, I systematically fabricate model ionomer-free Ag-Pd gas diffusion electrodes (GDEs) to investigate the performance of this material system in H2-O2 AEMFCs. Varying only the Ag:Pd alloy ratio, I find good agreement between the performance trends measured in the RDE and AEMFC configurations. In terms of electrocatalyst material engineering, in this work I develop Ag-based ORR electrocatalysts with tuned oxygen-adsorbate binding, affording state-of-the-art AEMFC performance. In addition, I also investigate the role of acid electrolyte anions on the ORR performance of Ag and Pd, as well as on the hydrogen and oxygen electrocatalysis performance of Pt. I find that performance varies as a function of electrolyte, that acid electrolyte anions effects are potential dependent, and that nitric acid affords improved electrolyte microenvironments conducive to improved performance compared to certain acids. By fundamentally understanding the interfacial processes responsible for the measured electrochemical performance, herein, I engineer high performing Ag-based ORR electrocatalysts and establish fundamental engineering principles to design optimal catalyst materials and catalyst--electrolyte microenvironments.
Book Synopsis Atomically Precise Nanochemistry by : Rongchao Jin
Download or read book Atomically Precise Nanochemistry written by Rongchao Jin and published by John Wiley & Sons. This book was released on 2023-06-12 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore recent progress and developments in atomically precise nanochemistry Chemists have long been motivated to create atomically precise nanoclusters, not only for addressing some fundamental issues that were not possible to tackle with imprecise nanoparticles, but also to provide new opportunities for applications such as catalysis, optics, and biomedicine. In Atomically Precise Nanochemistry, a team of distinguished researchers delivers a state-of-the-art reference for researchers and industry professionals working in the fields of nanoscience and cluster science, in disciplines ranging from chemistry to physics, biology, materials science, and engineering. A variety of different nanoclusters are covered, including metal nanoclusters, semiconductor nanoclusters, metal-oxo systems, large-sized organometallic nano-architectures, carbon clusters, and supramolecular architectures. The book contains not only experimental contributions, but also theoretical insights into the atomic and electronic structures, as well as the catalytic mechanisms. The authors explore synthesis, structure, geometry, bonding, and applications of each type of nanocluster. Perfect for researchers working in nanoscience, nanotechnology, and materials chemistry, Atomically Precise Nanochemistry will also benefit industry professionals in these sectors seeking a practical and up-to-date resource.
Book Synopsis Advanced Electrocatalysts for Low-Temperature Fuel Cells by : Francisco Javier Rodríguez-Varela
Download or read book Advanced Electrocatalysts for Low-Temperature Fuel Cells written by Francisco Javier Rodríguez-Varela and published by Springer. This book was released on 2018-10-09 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the reader to the state of the art in nanostructured anode and cathode electrocatalysts for low-temperature acid and alkaline fuel cells. It explores the electrocatalysis of anode (oxidation of organic molecules) and cathode (oxygen reduction) reactions. It also offers insights into metal-carbon interactions, correlating them with the catalytic activity of the electrochemical reactions. The book explores the electrocatalytic behaviour of materials based on noble metals and their alloys, as well as metal-metal oxides and metal-free nanostructures. It also discusses the surface and structural modification of carbon supports to enhance the catalytic activity of electrocatalysts for fuel-cell reactions.
Book Synopsis PEM Fuel Cell Electrocatalysts and Catalyst Layers by : Jiujun Zhang
Download or read book PEM Fuel Cell Electrocatalysts and Catalyst Layers written by Jiujun Zhang and published by Springer Science & Business Media. This book was released on 2008-08-26 with total page 1147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proton exchange membrane (PEM) fuel cells are promising clean energy converting devices with high efficiency and low to zero emissions. Such power sources can be used in transportation, stationary, portable and micro power applications. The key components of these fuel cells are catalysts and catalyst layers. “PEM Fuel Cell Electrocatalysts and Catalyst Layers” provides a comprehensive, in-depth survey of the field, presented by internationally renowned fuel cell scientists. The opening chapters introduce the fundamentals of electrochemical theory and fuel cell catalysis. Later chapters investigate the synthesis, characterization, and activity validation of PEM fuel cell catalysts. Further chapters describe in detail the integration of the electrocatalyst/catalyst layers into the fuel cell, and their performance validation. Researchers and engineers in the fuel cell industry will find this book a valuable resource, as will students of electrochemical engineering and catalyst synthesis.
Book Synopsis Catalysts for Alcohol-fuelled Direct Oxidation Fuel Cells by : Zhen-Xing Liang
Download or read book Catalysts for Alcohol-fuelled Direct Oxidation Fuel Cells written by Zhen-Xing Liang and published by Royal Society of Chemistry. This book was released on 2012 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a state-of-the-art review on recent advances in nanocatalysts and electrocatalysis in DOFCs.
Book Synopsis Noble-metal-free Electrocatalysts For Hydrogen Energy by : Qingsheng Gao
Download or read book Noble-metal-free Electrocatalysts For Hydrogen Energy written by Qingsheng Gao and published by World Scientific. This book was released on 2022-08-23 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: With interdisciplinary perspectives from internationally renowned experts, Noble-Metal-Free Electrocatalysts for Hydrogen Energy is one of the most authoritative references to focus solely on state-of-the-art knowledge of noble-metal-free electrocatalysts, as well as their nanostructures and unique properties. The chapters within contain cutting-edge breakthroughs, horizons, and insights into functional materials for energy applications.This book contains over 3000 references and 200 figures, and is a highly valuable resource for scientists, students, and engineers working in the fields of electrochemistry, catalysis, fuel cells, batteries, and supercapacitors.
Book Synopsis Physical and Chemical Tuning of Electrocatalysts for Renewable Energy Applications by : Haotian Wang
Download or read book Physical and Chemical Tuning of Electrocatalysts for Renewable Energy Applications written by Haotian Wang and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: With rising concerns over the environment and the need for sustainable energy sources, the development of highly efficient electrocatalysts for renewable energy conversion processes, such as in water splitting electrocatalysis and fuel cells, is becoming increasingly important. Instead of discovering different types of new catalysts as in traditional approaches, my PhD study was focused on developing novel methods to systematically tune the morphologies and electronic structures of existing catalysts, and thus significantly improve their catalytic activities. The first chapter gives a brief introduction of renewable energy technologies including clean H2 generation via water splitting and fuel cell catalysis. Basic principles in H2O-H2-O2 electrocatalysis system, including the reaction mechanisms, design principles of catalysts, as well as the characterization methods, are presented. In the second chapter I demonstrate the morphology tuning of two-dimensional (2D) MoS2 for hydrogen evolution reaction (HER). Instead of synthesizing MoS2 with layers lying flat on the substrate as most previous studies presented, I used rapid sulfurization method to kinetically force the 2D layers to vertically stand on the substrate, which maximally exposes the HER active edge sites on the surface. This unique structure presents no change when synthesized on curved surfaces in high surface area substrates. In addition, the S-edge sites were further activated by doping with transition metals, which successfully doubles the MoS2 HER activity. The tuning of MoS2 layer orientation also provides great inspirations in designing high-performance Li-ion batteries. Chapter three includes the electrochemical tuning of electronic structures and morphologies of catalysts for improved water-splitting catalysis. The unique crystal structure of 2D materials allows guest ions to be intercalated or extracted between the molecular layers, opens up great opportunities to continuously tune the electronic structure of catalysts for optimized activities. Combining with Li-ion battery technologies, I intercalated Li ions into MoS2 catalyst, reducing the oxidation states of Mo and also inducing the 2H to 1T phase transition, which dramatically improves its HER activities. Inspired by this successful demonstration, Li ions were extracted out of LiCoO2 to tune up the oxidation state of Co and thus greatly improves its oxygen evolution reaction (OER) activities. In addition, a highly active bifunctional catalyst for overall water splitting was obtained by treating transition metal oxide (TMO) catalysts with Li-ion battery cycling process which transforms monocrystalline particles into interconnected ultra-small nanoparticles.
Book Synopsis Electrocatalytic Hydrogen Production: Catalysts and Applications by : Xiang Peng
Download or read book Electrocatalytic Hydrogen Production: Catalysts and Applications written by Xiang Peng and published by Materials Research Forum LLC. This book was released on 2024-06-05 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents the fundamental principles, materials, and strategies involved in the design and development of catalysts for electrocatalytic hydrogen production. Keywords: Metal based Catalysts, Single Atomic Catalysts, Carbides, Nitrides, Phosphides, Oxides, Sulfides, Selenides, Composite Electrocatalysts, Heterostructured Electrocatalysts, Precious Metal-based Electrocatalysts, Transition Metal Compound Catalysts, Surface Structure Modulation, Catalysts for Oxygen Evolution, Electrolyzers.
Book Synopsis Electrocatalysis: Computational, Experimental, and Industrial Aspects by : Carlos Fernando Zinola
Download or read book Electrocatalysis: Computational, Experimental, and Industrial Aspects written by Carlos Fernando Zinola and published by CRC Press. This book was released on 2010-03-25 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrocatalysis applications are employed in a large number of industries worldwide, ranging from old technologies such as galvanoplasty to the most up-to-date deployments involving ultracapacitators. Recognizing electrocatalysis as a useful interfacial approach to a dynamic interdisciplinary science, Electrocatalysis: Computational, Experimental,
Book Synopsis Synthesis and Electrocatalytic Properties of Structure Engineered First-row Transition Metal Derivatives by : Xiaodong Yan
Download or read book Synthesis and Electrocatalytic Properties of Structure Engineered First-row Transition Metal Derivatives written by Xiaodong Yan and published by . This book was released on 2018 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen is a green energy carrier, producing only water when combusted, and a hydrogen economy has been considered the ideal green economy for human society. Water electrolysis can produce high-purity hydrogen on a large scale, and if the electricity used in water electrolysis is obtained from renewable energy, a sustainable energy chain can be achieved. Fuel cell technology offers a highly efficient way of converting chemical energy from a fuel into electricity through an electrochemical reaction. Fuel cells are expected to be one of the mainstream energy conversion devices for many applications such as the transportation and portable electronic systems. Hydrogen fuel cell technology is, of course, the ideal choice. However, the hydrogen storage is still a big challenge due to its gaseous nature, extremely low boiling point, and high inflammability. While advanced hydrogen storage technology is under development, fuel cells using liquid fuels (e.g. hydrazine) need to be developed. The key to both water electrolysis and fuel cells is the electrocatalyst. Currently, the noble metal based materials are still the state-of-the-art electrocatalysts for water electrolysis and in fuel cells in terms of catalytic activity and catalyst durability. However, their scarcity and high price hinder their widespread commercial use. Therefore, it is imperative to develop earth-abundant, low-cost electrocatalyst materials that have high catalytic activity comparable to or even better than the noble metal based electrocatalysts. Nowadays, the research emphasis of earth-abundant electrocatalysts is thus primarily placed on enhancing the catalytic activity or lowering the overpotential that is needed to drive the electrochemical reactions. The catalytic performance of an electrocatalyst is associated with its surface area, near-surface structure, electronic structure, conductivity, crystal size, etc. Rational structural modification of the electrocatalyst materials and/or architectural design of the catalyst electrodes can help enlarge the surface area, increase the active sites, tune the electronic structure and conductivity, and so on. In this dissertation, a series of strategies (e.g. hydrogenation, solvothermal reduction, and electrochemical tuning) have been developed to fabricate structure-tuned electrocatalyst materials for electrochemical water splitting and electro-oxidation of hydrazine. Well-defined Co/Co3O4 and Co/CoO core-shell heterostructures have been found to be highly active towards hydrogen evolution reaction (HER) and hydrazine oxidation, respectively. FeNi3/NiFeOx nanohybrids have been thoroughly characterized for HER and oxygen evolution reaction (OER). Nano-on-micro Cu has been explored as a highly efficient catalyst towards electro-oxidation of hydrazine. Cobalt hydroxide carbonate with rich grain boundaries has been shown to be a highly efficient non-metallic electrocatalyst towards hydrazine oxidation.
Book Synopsis Platinum Monolayer Electrocatalysts by : Radoslav Adzic
Download or read book Platinum Monolayer Electrocatalysts written by Radoslav Adzic and published by Springer Nature. This book was released on 2020-08-11 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes a science and technology of a new type of electrocatalysts consisting of a single atomic layer of platinum on suitable supports. This development helped overcome three major obstacles—catalysts‘ cost, activity, and stability—for a broad range of fuel cell applications. The volume begins with a short introduction to the science of electrocatalysis, covering four reactions important for energy conversion in fuel cells. A description follows of the properties of metal monolayers on electrode surfaces, and underpotential deposition of metals. The authors then describe the concept of Pt monolayer electrocatalysts and its implications and their synthesis by galvanic displacement of less-noble metal monolayers and other methods. The main part of the book presents a discussion of catalysts’ characterization and catalytic properties of Pt monolayers for the four main reactions of electrochemical energy conversion: oxygen reduction and oxidation of hydrogen, methanol and ethanol. The book concludes with a treatment of scale-up syntheses, fuel cell tests, catalysts’ stability and application prospects.
