Recent progress of enhanced bubble separation in alkaline water electrolyzer

Recent progress of enhanced bubble separation in alkaline water electrolyzer
Author: Lin Yang
Publisher: OAE Publishing Inc.
Total Pages: 22
Release: 2023-09-27
Genre: Science
ISBN:

Alkaline water electrolysis has a large industrial application and development potential in hydrogen energy owing to its high maturity and low cost. However, its moderate energy efficiency, especially caused by bubble effects, inhibits its use for large-scale hydrogen production. To overcome this shortcoming, this review first analyzes the bubble effect and summarizes the external operation methods, such as external field intensification, flow operation, fluctuation operation, and surfactant addition to the electrolyte, to enhance bubble separation in the electrolyzer. Then, electrode and flow channel structure optimization, particularly superhydrophilic and superaerophobic electrodes, and flow channels with varying heights, square column arrangements, and inlet/outlet numbers are highlighted. Finally, future research directions in alkaline water electrolysis technology are suggested to advance the industrial application of large-scale alkaline water electrolysis.

Hydrogen Electrochemical Production

Hydrogen Electrochemical Production
Author: Christophe Coutanceau
Publisher: Academic Press
Total Pages: 113
Release: 2017-09-07
Genre: Science
ISBN: 0128112514

Hydrogen Electrochemical Production presents different avenues of hydrogen production for energy applications, including current developments and future perspectives, using an interdisciplinary approach. Part of the Hydrogen Energy and Fuel Cell Primers series, the volume synthesizes information from many sources, making it a useful reference for industry professionals, researchers and graduate students. The book examines various methods, explaining their advantages and limitations. The water electrolysis reaction and systems are explored from different points of view, including an assessment of state-of-the-art technologies. Alternatives to water for feeding the electrolysis cell anode and for electrochemical hydrogen production (such as alcohol or other compounds from biomass) are discussed. - Explores current technology developments and future perspectives of hydrogen production for energy applications - Examines the state-of-the art technology in electrolysis reaction and systems and discusses the advantages and limitations of various methods - Covers alternatives to water for feeding electrolysis cell anode, including alcohol and other compounds from biomass

Electrochemical Methods for Hydrogen Production

Electrochemical Methods for Hydrogen Production
Author: Keith Scott
Publisher: Royal Society of Chemistry
Total Pages: 430
Release: 2019-11-25
Genre: Science
ISBN: 1839160071

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.

Green Hydrogen Production by Water Electrolysis

Green Hydrogen Production by Water Electrolysis
Author: Junbo Hou
Publisher: CRC Press
Total Pages: 363
Release: 2024-07-24
Genre: Technology & Engineering
ISBN: 104004753X

The world’s largest economies have set clear development plans for hydrogen energy. From an Economy, Energy, and Environment (3E) point of view, hydrogen energy can be considered an ideal technology for enabling the energy transition from fossil fuels, restructuring energy systems, securing national energy sources, accelerating carbon neutralization, and driving the development of technologies and industry. Green hydrogen production by water electrolysis is the key for hydrogen energy, and this book offers urgently needed guidance on the most important scientific fundamentals and practical applied technologies in this field. This book: • Details materials, electrochemistry, and mechanics. • Covers ALK, PEM, AEM, and SOEC water electrolysis, including fundamentals and applications. • Addresses trends, opportunities, and challenges. This comprehensive reference is aimed at engineers and scientists working on renewable and alternative energy to meet global energy demands and climate action goals.

PEM Water Electrolysis

PEM Water Electrolysis
Author: Dmitri Bessarabov
Publisher: Academic Press
Total Pages: 140
Release: 2018-08-04
Genre: Science
ISBN: 0081028318

PEM Water Electrolysis, a volume in the Hydrogen Energy and Fuel Cell Primers series presents the most recent advances in the field. It brings together information that has thus far been scattered in many different sources under one single title, making it a useful reference for industry professionals, researchers and graduate students. Volumes One and Two allow readers to identify technology gaps for commercially viable PEM electrolysis systems for energy applications and examine the fundamentals of PEM electrolysis and selected research topics that are top of mind for the academic and industry community, such as gas cross-over and AST protocols. The book lays the foundation for the exploration of the current industrial trends for PEM electrolysis, such as power to gas application and a strong focus on the current trends in the application of PEM electrolysis associated with energy storage. - Presents the fundamentals and most current knowledge in proton exchange membrane water electrolyzers - Explores the technology gaps and challenges for commercial deployment of PEM water electrolysis technologies - Includes unconventional systems, such as ozone generators - Brings together information from many different sources under one single title, making it a useful reference for industry professionals, researchers and graduate students alike

Hydrogen Fuel

Hydrogen Fuel
Author: Ram B. Gupta
Publisher: CRC Press
Total Pages: 626
Release: 2008-07-30
Genre: Science
ISBN: 1420045776

From Methane to Hydrogen-Making the Switch to a Cleaner Fuel Source The world's overdependence on fossil fuels has created environmental problems, such as air pollution and global warming, as well as political and economic unrest. With water as its only by-product and its availability in all parts of the world, hydrogen promises to be the next grea

Electrochemical Reactors: Fundamentals, electrolysers, batteries, and fuel cells

Electrochemical Reactors: Fundamentals, electrolysers, batteries, and fuel cells
Author: M. I. Ismail
Publisher: Elsevier Publishing Company
Total Pages: 574
Release: 1989
Genre: Science
ISBN:

This book provides a guide for professionals interested in energy transfer and electrochemical technology systems. It covers the state-of-the-art of materials, electrochemistry and electrochemical engineering as related to electrochemical reactors, batteries and fuel cells. The fifteen chapters, written by experts in fields related to every aspect affecting reactor performance, are grouped into three parts. The first is devoted to fundamentals of reactors, batteries and fuel cells and covers various aspects of design, parts, construction, materials operation and control systems. The second group is devoted to specific reactors such as aqueous electro-organic and inorganic synthesis, electrochemical polymerization, molten salt electrolysis, electrochemical machining, metal finishing, reactor performance, failure mechanisms, corrosion control, materials selection and techniques. The third group deals with manufacturing techniques and surface treatment of materials for commercial reactors, commercial parts/materials, fastening, assembly and production of reactor parts and mathematical modelling of various reactor processes.

Bioelectrosynthesis

Bioelectrosynthesis
Author: Falk Harnisch
Publisher: Springer
Total Pages: 423
Release: 2019-01-04
Genre: Science
ISBN: 303003299X

This volume discusses both the latest experimental research in bioelectrosynthesis and current applications. Beginning with an introduction into the “electrification of biotechnology” as well as the underlying fundamentals, the volume then discusses a wide range of topics based on the interfacing of biotechnological and electrochemical reaction steps. It includes contributions on the different aspects of bioelectrochemical applications for synthesis purposes, i.e. the production of fine and platform chemicals based on enzymatically or microbially catalyzed reactions driven by electric energy. The volume finishes with a summary and outlook chapter which gives an overview of the current status of the field and future perspectives. Edited by experts in the field, and authored by a wide range of international researchers, this volume assesses how research from today’s lab bench can be developed into industrial applications, and is of interest to researchers in academia and industry.

Electrochemical Water Splitting

Electrochemical Water Splitting
Author: Inamuddin
Publisher: Materials Research Forum LLC
Total Pages: 251
Release: 2019-10-25
Genre: Technology & Engineering
ISBN: 1644900459

Aiming at the generation of hydrogen from water, electrochemical water splitting represents a promising clean technology for generating a renewable energy resource. The book reviews the fundamental aspects and describes recent research advances. Properties and characterization methods for various types of electrocatalysts are discussed, including noble metals, earth-abundant metals, metal-organic frameworks, carbon nanomaterials and polymers. Keywords: Electrochemical Water Splitting, Renewable Energy Resource, Electrocatalysts, Oxygen Evolution Reaction (OER), Noble Metal Catalysts, Earth-Abundant Metal Catalysts, MOF Catalysts, Carbon-based Nanocatalysts, Polymer Catalysts, Transition Metal-based Electrocatalysts, Fe-based Electrocatalysts, Co-based Electrocatalysts, Ni-based Electrocatalysts, Metal Free Catalysts, Transition-Metal Chalcogenides, Prussian Blue Analogues.

Hydrogen Production Technologies

Hydrogen Production Technologies
Author: Mehmet Sankir
Publisher: John Wiley & Sons
Total Pages: 653
Release: 2017-03-20
Genre: Science
ISBN: 1119283655

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.