Electrochemical Hydrogen Technologies
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Electrochemical Hydrogen Technologies
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Author : Hartmut Wendt
language : en
Publisher: Elsevier Publishing Company
Release Date : 1990
Electrochemical Hydrogen Technologies written by Hartmut Wendt and has been published by Elsevier Publishing Company this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Science categories.
The focus of this book is on electrochemical hydrogen technologies and fuel cell technologies in particular. Precipitated by the energy crisis in 1973, intensive work has been done world-wide on hydrogen technologies. Water electrolysis was the main objective. The steady increase of combustion of fossil fuels, with the ensuing CO 2 content in the environment, has led to a greater need to change the use of energy conversion and consumption. Hydrogen, based on nuclear and renewable energies, could become indispensable for energy storage and long range transport. Only electrolysis allows the conversion of electrical energy into hydrogen with high efficiency. Prior to the introduction of non-polluting but very expensive methods for energy harvesting and conversion, it is first necessary to ascertain how to save energy and to refurbish energy conversion systems to obtain the highest efficiencies with the lowest CO 2 emissions, e.g. in large scale electricity generation.Collected here in 7 chapters are the contributions of internationally known electrochemical engineers who work actively in this rapidly developing field. The relevant work reviewed extends from fundamental findings in the field of technical electrocatalysis of hydrogen and oxygen reactions to water electrolysis, chlor-alkali electrolysis (which is still practically the most important process for electrolytic hydrogen generation), thermochemical hybrid cycles and on finally to fuel cells. The latter in their advanced form of heavy, high-temperature cells promise to become the basis for highly efficient electric power plants for converting the chemical energy of fossil fuels, or hydrogen from fossil combustibles like methane, or coal into electricity with system efficiencies greater than 55%.The material presented in this volume should prove of immense value to electrochemical engineers, producers of electrolyzers and fuel cells, electrical engineers and political/technical decision makers. It will also be of use to academic teachers lecturing on electrochemistry and advanced technologies.
Hydrogen Storage For Sustainability
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Author : Marcel Van de Voorde
language : en
Publisher: Walter de Gruyter GmbH & Co KG
Release Date : 2021-09-07
Hydrogen Storage For Sustainability written by Marcel Van de Voorde and has been published by Walter de Gruyter GmbH & Co KG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-09-07 with Technology & Engineering categories.
Carbon neutral hydrogen technologies play a role in preventing climate change and the capacity to store and transport hydrogen will be critical in the growing hydrogen economy. This book focuses on new developments of hydrogen storage technologies and deals with an overview of the materials and science necessary for storing hydrogen with great attention to the synthesis, kinetics, and thermodynamics of new advanced materials e.a. porous carbon and nanomaterials. Ideal book for students of materials science, chemistry, physics; for researchers, chemical- and mechanical engineers, for industrialists, policymakers, safety agencies and governments.
Hyrdogen Storage Technologies
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Author : Mehmet Sankir
language : en
Publisher: John Wiley & Sons
Release Date : 2018-07-10
Hyrdogen Storage Technologies written by Mehmet Sankir and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-10 with Science categories.
Hydrogen storage is considered a key technology for stationary and portable power generation especially for transportation. This volume covers the novel technologies to efficiently store and distribute hydrogen and discusses the underlying basics as well as the advanced details in hydrogen storage technologies. The book has two major parts: Chemical and electrochemical hydrogen storage and Carbon-based materials for hydrogen storage. The following subjects are detailed in Part I: Multi stage compression system based on metal hydrides Metal-N-H systems and their physico-chemical properties Mg-based nano materials with enhanced sorption kinetics Gaseous and electrochemical hydrogen storage in the Ti-Z-Ni Electrochemical methods for hydrogenation/dehydrogenation of metal hydrides In Part II the following subjects are addressed: Activated carbon for hydrogen storage obtained from agro-industrial waste Hydrogen storage using carbonaceous materials Hydrogen storage performance of composite material consisting of single walled carbon nanotubes and metal oxide nanoparticles Hydrogen storage characteristics of graphene addition of hydrogen storage materials Discussion of the crucial features of hydrogen adsorption of nanotextured carbon-based materials
Electrochemical Water Electrolysis
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Author : Lei Zhang
language : en
Publisher: CRC Press
Release Date : 2020-04-08
Electrochemical Water Electrolysis written by Lei Zhang and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-04-08 with Science categories.
This book comprehensively describes the fundamentals of electrochemical water electrolysis as well as the latest materials and technological developments. It addresses a variety of topics such as electrochemical processes, materials, components, assembly and manufacturing, and degradation mechanisms, as well as challenges and strategies. It also includes an understanding of how materials and technologies for electrochemical water electrolysis have developed in recent years, and it describes the progress in improving performance and providing benefits to energy systems and applications. Features the most recent advances in electrochemical water electrolysis to produce hydrogen Discusses cutting-edge materials and technologies for electrochemical water electrolysis Includes both experimental and theoretical approaches that can be used to guide and promote materials as well as technological development for electrochemical water electrolysis Comprises work from international leading scientists active in electrochemical energy and environmental research and development Provides invaluable information that will benefit readers from both academia and industry With contributions from researchers at the top of their fields, the book includes in-depth discussions covering the engineering of components and applied devices, making this an essential read for scientists and engineers working in the development of electrochemical energy devices and related disciplines.
Electrochemical Power Sources Fundamentals Systems And Applications
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Author : Tom Smolinka
language : en
Publisher: Elsevier
Release Date : 2021-10-25
Electrochemical Power Sources Fundamentals Systems And Applications written by Tom Smolinka and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-10-25 with Technology & Engineering categories.
Electrochemical Power Sources: Fundamentals, Systems, and Applications: Hydrogen Production by Water Electrolysis offers a comprehensive overview about different hydrogen production technologies, including their technical features, development stage, recent advances, and technical and economic issues of system integration. Allied processes such as regenerative fuel cells and sea water electrolysis are also covered. For many years hydrogen production by water electrolysis was of minor importance, but research and development in the field has increased significantly in recent years, and a comprehensive overview is missing. This book bridges this gap and provides a general reference to the topic. Hydrogen production by water electrolysis is the main technology to integrate high shares of electricity from renewable energy sources and balance out the supply and demand match in the energy system. Different electrochemical approaches exist to produce hydrogen from RES (Renewable Energy Sources). Covers the fundamentals of hydrogen production by water electrolysis Reviews all relevant technologies comprehensively Outlines important technical and economic issues of system integration Includes commercial examples and demonstrates electrolyzer projects
Introduction To Hydrogen Technology
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Author : K. S. V. Santhanam
language : en
Publisher: John Wiley & Sons
Release Date : 2017-10-23
Introduction To Hydrogen Technology written by K. S. V. Santhanam and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-10-23 with Technology & Engineering categories.
Introduces the field of hydrogen technology and explains the basic chemistry underlying promising and innovative new technologies This new and completely updated edition of Introduction to Hydrogen Technology explains, at an introductory level, the scientific and technical aspects of hydrogen technology. It incorporates information on the latest developments and the current research in the field, including: new techniques for isolating and storing hydrogen, usage as a fuel for automobiles, residential power systems, mobile power systems, and space applications. Introduction to Hydrogen Technology, Second Edition features classroom-tested exercises and sample problems. It details new economical methods for isolating the pure hydrogen molecule. These less expensive methods help make hydrogen fuel a very viable alternative to petroleum-based energy. The book also adds a new chapter on hydrogen production and batteries. It also provides in-depth coverage of the many technical hurdles in hydrogen storage. The developments in fuel cells since the last edition has been updated. Offers new chapters on hydrogen production, storage, and batteries Features new sections on advanced hydrogen systems, new membranes, greenhouse gas sensors and updated technologies involving solar and wind energies Includes problems at the end of the Chapters, as well as solutions for adopters This book is an introduction to hydrogen technology for students who have taken at least one course in general chemistry and calculus; it will also be a resource book for scientists and researchers working in hydrogen-based technologies, as well as anyone interested in sustainable energy.
Electrochemical Methods For Hydrogen Production
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Author : Keith Scott
language : en
Publisher: Royal Society of Chemistry
Release Date : 2019-11-25
Electrochemical Methods For Hydrogen Production written by Keith Scott and has been published by Royal Society of Chemistry this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-11-25 with Science categories.
Increased hydrogen supplies using cleaner methods are seen as essential for potential hydrogen based power systems for transportation and renewable energy conversion into fuel. This book provides a comprehensive picture of the various routes to use electricity to produce hydrogen using electrochemical science and technology. Edited by an expert in the field, this title will be of interest to graduate students and researchers in academia and industry working in energy, electrochemistry, physical chemistry and chemical engineering.
Hydrogen Production And Energy Transition
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Author : Marcel Van de Voorde
language : en
Publisher: Walter de Gruyter GmbH & Co KG
Release Date : 2021-09-07
Hydrogen Production And Energy Transition written by Marcel Van de Voorde and has been published by Walter de Gruyter GmbH & Co KG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-09-07 with Technology & Engineering categories.
Carbon neutral hydrogen technologies play a key role in preventing climate change. Maximizing production of hydrogen in a clean and efficient manner is critical to the hydrogen economy. This book describes most of the potential hydrogen processing technologies and presents the state-of the- art and future developments of modern hydrogen technologies. Attention has been given to the theoretical aspects, thermodynamics, process calculations, and modeling approaches, new technologies and reports of multiple successful new pilot systems. The book should appeal to a brad readership and ideal for students of materials science, chemistry, physics; for researchers, chemical- and mechanical engineering, for industrialists, policymakers, economics, safety agencies and governments.
Electrochemical Technologies For Hydrogen Production
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Author : S. N. Lvov
language : en
Publisher: The Electrochemical Society
Release Date : 2010-10
Electrochemical Technologies For Hydrogen Production written by S. N. Lvov and has been published by The Electrochemical Society this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-10 with Science categories.
The papers included in this issue of ECS Transactions were originally presented in the symposium ¿Electrochemical Technologies for Hydrogen Production¿, held during the 217th meeting of The Electrochemical Society, in Vancouver, Canada, from April 25 to 30, 2010.
Electrochemical Reduction Of Protons And Organic Molecules In Hydrogen Technologies
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Author : Hamid Ghorbani Shiraz
language : en
Publisher:
Release Date : 2022
Electrochemical Reduction Of Protons And Organic Molecules In Hydrogen Technologies written by Hamid Ghorbani Shiraz and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with categories.
In accordance with preventable actions to mitigate the effect of climate change in the modern societal applications, renewable energy is an unavoidable and decisive factor in the energy industry. The energy sources that offer non-depleted and environment-friendly pathways for the energy sector are in focus. Amongst, hydrogen has been defined as one of the best candidates to meet the criteria such as high energy-content and zero-emission of CO2, and of course, renewability. In this work, we focused on the areas of hydrogen generation and hydrogen storage.??In the first part, we employed an inorganic electrocatalyst (nanosheets) to drive the hydrogen evolution reaction (HER), where we proved that the overpotential of few millivolts (0.016 V) is enough to run the HER reaction. We studied the effect of interlayer gap (for the nanosheets) on the catalytic performance. The chemical intercalation showed a huge effect for the suppression of the HER, which could be applicable for the devices like batteries the formation of any gaseous species has detrimental effect on the performance. It should not be left unmentioned that the measurements were carried out in a platinum group metal free (PGM-free) system, where graphite felt were used as a counter electrode, to avoid any platinum contamination. Next, we investigated the effect of oxygen poisoning on both pristine electrocatalyst and intercalated one. The XPS and UPS measurements confirmed the formation of oxygen-containing groups on the electrocatalysts. Electrochemical measurements showed the increase of the overpotential toward HER as the electrocatalysts are exposed to air for longer time. However, study of the hydrogen oxidation reaction (HOR) showed that there is an optimum concentration of oxygenic functional groups that can lead to a high current density of HOR process. The study of exchange current density showed that, after 10 days of exposure of electrocatalyst to atmospheric air, pristine sample possesses the best performance toward HER and intercalated one shows the highest performance for the HOR. ??In the other section, hydrogen storage for the organic redox-active molecule (dissolved in organic solvent) was studied. One of the main problems in hydrogen economy concept, is the storage of the hydrogen for transportation. The new concept of Liquid Organic Hydrogen Carrier (LOHC) offers a low-cost and safe approach to this challenge. Herein, we demonstrated an electrochemical pathway to hydrogenate the organic system via conversion of proton of a proton donor into a covalent-bonded hydrogen, through a proton coupled electron transfer (PCET) reaction of 2nH+ + 2ne ̄ + Rox nH2Rred. Here, we studied the 9-fluorenone/fluorenol (Fnone/Fnol) as a model PCET reaction. The electrochemical activation of starting component of (Fnone), through two successive electron transfers was investigated with in-situ and operando spectroscopies purely, and in presence of different proton donors of different reactivity. We succeed to both quantify and qualify the investigated the reaction. The hydrogen release step was demonstrated chemically with the aid of catalyst. ??To conclude, we employed a PGM-free system to demonstrate and characterize a high performing electrocatalyst for hydrogen evolution. Surprisingly, HOR was revealed to perform well using the oxygen poisoned electrocatalyst for HER. In the other section of this work, an electrochemical assisted synthesis of LOHC, in the lab-scale, was proved. A PCET pathway was conceptualized with mechanistic insight. Our work opens new avenue for the technology of hydrogenation of LOHC as we showed for the first time that this could be realized by electrochemistry without the need of hydrogen gas as a prerequisite. We believe that in the future both works could contribute slightly to the concept of the hydrogen economy.
