Production of Clean Hydrogen by Electrochemical Reforming of Oxygenated Organic Compounds


Book Description

Production of Clean Hydrogen by Electrochemical Reforming of Oxygenated Organic Compounds provides a comprehensive overview of the thermodynamics and experimental results that allow the decomposition process of organic compounds leading to hydrogen to be carried out at working cell voltages much lower than those encountered in water electrolysis. The authors review different methods of synthesis and characterization of the catalysts needed to activate the electro-oxidation reaction and describe different electrolysis experiments that produce hydrogen in a Proton Exchange Membrane Electrolysis Cell (PEMEC). Other sections investigate the effect of the nature of the reactive molecules, the nature and structure of the catalysts, and more. By exploring the link between organic oxidation/conversion to hydrogen production, this book fills a gap in the existing literature and provides researchers in the field with an authoritative and comprehensive reference they can use when developing new sustainable processes and systems for hydrogen production. - Explores, in detail, the decomposition process of organic compounds leading to hydrogen - Presents foundational information, practical insights and pathways for future work in the development of proton exchange membrane electrolysis cell systems - Includes results, experimental data and interpretations using different organic compounds, such as methanol, formic acid, ethanol, glycerol and biomass




Hydrogen Production Technologies


Book Description

Provides a comprehensive practical review of the new technologies used to obtain hydrogen more efficiently via catalytic, electrochemical, bio- and photohydrogen production. Hydrogen has been gaining more attention in both transportation and stationary power applications. Fuel cell-powered cars are on the roads and the automotive industry is demanding feasible and efficient technologies to produce hydrogen. The principles and methods described herein lead to reasonable mitigation of the great majority of problems associated with hydrogen production technologies. The chapters in this book are written by distinguished authors who have extensive experience in their fields, and readers will have a chance to compare the fundamental production techniques and learn about the pros and cons of these technologies. The book is organized into three parts. Part I shows the catalytic and electrochemical principles involved in hydrogen production technologies. Part II addresses hydrogen production from electrochemically active bacteria (EAB) by decomposing organic compound into hydrogen in microbial electrolysis cells (MECs). The final part of the book is concerned with photohydrogen generation. Recent developments in the area of semiconductor-based nanomaterials, specifically semiconductor oxides, nitrides and metal free semiconductor-based nanomaterials for photocatalytic hydrogen production are extensively discussed.




Heterogeneous Catalysis


Book Description

Heterogeneous Catalysis: Materials and Applications focuses on heterogeneous catalysis applied to the elimination of atmospheric pollutants as an alternative solution for producing clean energy and the valorization of chemical products. The book helps users understand the properties of catalytic materials and catalysis phenomena governing electrocatalytic/catalytic reactions, and – more specifically – the study of surface and interface chemistry. By clustering knowledge in these fields, the book makes information available to both the academic and industrial communities. Further, it shows how heterogeneous catalysis applications can be used to solve environmental problems and convert energy through electrocatalytic reactions and chemical valorization. Sections cover nanomaterials for heterogeneous catalysis, heterogeneous catalysis mechanisms, SOX adsorption, greenhouse gases conversion, reforming reactions for hydrogen production, valorization of hydrogen energy, energy conversion and biomass valorization. - Addresses topics of increasing interest to society such as the valorization of biomass, the use of polluting gases to produce value-added products, and the optimization of catalytic materials for water splitting, fuel cells, and other devices - Discusses pollutant adsorption by industrial fume desulphurization processes - Helps improve processes for obtaining chemicals using nonconventional technologies




Hydrogen, Biomass and Bioenergy


Book Description

Hydrogen and Bioenergy: Integration Pathways for Renewable Energy Applications focuses on the nexus between hydrogen and carbon compounds as energy carriers, with a particular focus on renewable energy solutions. This book explores opportunities for integrating hydrogen in the bioenergy value chain, such as adding hydrogen to upgrade biofuels and lower CO2 emissions during production. The book also takes the inverse path to examine hydrogen production by chemical and biological routes from various bioresources, including solid waste, wastewater, agricultural products and algae. This broad coverage of technologies and applications presents a unique resource for researchers and practitioners developing integrated hydrogen and bioenergy technologies. This book will also be useful for graduate students and new researchers, presenting an introductory resource in the areas of hydrogen and bioenergy. Energy planners and engineers will also benefit from this content when designing and deploying hydrogen infrastructure for power, heating and transportation. - Provides a comprehensive picture of hydrogen generation from biomass, as well as other sources of hydrogen for power, heating, transportation and storage applications - Explores the ways hydrogen can be utilized in combination with bio-derived hydrocarbon chains to produce a variety of substitutes for fossil fuel-based petrochemicals - Fills the gap between theoretical knowledge and technology viability - Analyzes how these technologies fit into an overall energy strategy targeted at expanding the renewable energy sector




Electrochemical Methods for Hydrogen Production


Book Description

The hydrogen economy is receiving increased attention due to concerns around the consequences of fossil fuel use, and hydrogen has great potential as a way to reduce reliance on traditional energy sources. Increased hydrogen supplies using cleaner methods are seen as essential for potential hydrogen based power systems for transportation and renewable energy conversion into fuel. Electrochemical Methods for Hydrogen Production provides a comprehensive picture of the various routes to use electricity to produce hydrogen using electrochemical science and technology. The book provides an overview of the fundamentals of electrochemical cells and performance characterisation, as well as a comparison of current applications. It also includes the various types of electrolysers currently used commercially and the range of new electrolysis processes, including photo-electrochemical, biological and thermal energy techniques. 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.




Encyclopedia of Electrochemical Power Sources


Book Description

The Encyclopedia of Electrochemical Power Sources, Second Edition, is a comprehensive seven-volume set that serves as a vital interdisciplinary reference for those working with batteries, fuel cells, electrolyzers, supercapacitors, and photo-electrochemical cells. With an increased focus on the environmental and economic impacts of electrochemical power sources, this work not only consolidates extensive coverage of the field but also serves as a gateway to the latest literature for professionals and students alike. The field of electrochemical power sources has experienced significant growth and development since the first edition was published in 2009. This is reflected in the exponential growth of the battery market, the improvement of many conventional systems, and the introduction of new systems and technologies. This completely revised second edition captures these advancements, providing updates on all scientific, technical, and economic developments over the past decade. Thematically arranged, this edition delves into crucial areas such as batteries, fuel cells, electrolyzers, supercapacitors, and photo-electrochemical cells. It explores challenges and advancements in electrode and electrolyte materials, structural design, optimization, application of novel materials, and performance analysis. This comprehensive resource, with its focus on the future of electrochemical power sources, is an essential tool for navigating this rapidly evolving field. - Covers the main types of power sources, including their operating principles, systems, materials, and applications - Serves as a primary source of information for electrochemists, materials scientists, energy technologists, and engineers - Incorporates 365 articles, with timely coverage of environmental and sustainability aspects - Arranged thematically to facilitate easy navigation of topics and easy exploration of the field across its key branches - Follows a consistent structure and features elements such as key objective boxes, summaries, figures, references, and cross-references etc., to help students, faculty, and professionals alike







Basic Principles in Applied Catalysis


Book Description

Written by a team of internationally recognized experts, this book addresses the most important types of catalytic reactions and catalysts as used in industrial practice. Both applied aspects and the essential scientific principles are described. The main topics can be summarized as follows: heterogeneous, homogeneous and biocatalysis, catalyst preparation and characterization, catalytic reaction engineering and kinetics, catalyst deactivation and industrial perspective.




Supercritical Fluid Technology for Energy and Environmental Applications


Book Description

Supercritical Fluid Technology for Energy and Environmental Applications covers the fundamental principles involved in the preparation and characterization of supercritical fluids (SCFs) used in the energy production and other environmental applications. Energy production from diversified resources — including renewable materials — using clean processes can be accomplished using technologies like SCFs. This book is focused on critical issues scientists and engineers face in applying SCFs to energy production and environmental protection, the innovative solutions they have found, and the challenges they need to overcome. The book also covers the basics of sub- and supercritical fluids, like the thermodynamics of phase and chemical equilibria, mathematical modeling, and process calculations.A supercritical fluid is any substance at a temperature and pressure above its critical point where distinct liquid and gas phases do not exist. At this state the compound demonstrates unique properties, which can be "fine-tuned," making them suitable as organic solvents in a range of industrial and laboratory processes.This volume enables readers to select the most appropriate medium for a specific situation. It helps instructors prepare course material for graduate and postgraduate courses in the area of chemistry, chemical engineering, and environmental engineering. And it helps professional engineers learn supercritical fluid-based technologies and use them in solving the increasingly challenging environmental issues. - Relates theory, chemical characteristics, and properties of the particular supercritical fluid to its various applications - Covers the fundamentals of supercritical fluids, like thermodynamics of phase and chemical equilibria, mathematical modeling, and process calculations - Includes the most recent applications of supercritical fluids, including energy generation, materials synthesis, and environmental protection




Electro-Fenton Process


Book Description

This volume discusses the theoretical fundamentals and potential applications of the original electro-Fenton (EF) process and its most innovative and promising versions, all of which are classified as electrochemical advanced oxidation processes. It consists of 15 chapters that review the latest advances and trends, material selection, reaction and reactor modeling and EF scale-up. It particularly focuses on the applications of EF process in the treatment of toxic and persistent organic pollutants in water and soil, showing highly efficient removal for both lab-scale and pre-pilot setups. Indeed, the EF technology is now mature enough to be brought to market, and this collection of contributions from leading experts in the field constitutes a timely milestone for scientists and engineers.