Electrochemical Polymer Electrolyte Membranes

Download Electrochemical Polymer Electrolyte Membranes ebook PDF or Read Online books in PDF, EPUB, and Mobi Format. Click Download or Read Online button to Electrochemical Polymer Electrolyte Membranes book pdf for free now.

Electrochemical Polymer Electrolyte Membranes

Author : Jianhua Fang
ISBN : 9781466581470
Genre : Science
File Size : 59.83 MB
Format : PDF, ePub
Download : 188
Read : 433

Electrochemical Polymer Electrolyte Membranes covers PEMs from fundamentals to applications, describing their structure, properties, characterization, synthesis, and use in electrochemical energy storage and solar energy conversion technologies. Featuring chapters authored by leading experts from academia and industry, this authoritative text: Discusses cutting-edge methodologies in PEM material selection and fabrication Points out important challenges in developing PEMs and recommends mitigation strategies to improve PEM performance Analyzes the current integration of PEMs with primary power devices and explores research trends for the next generation of PEMs Electrochemical Polymer Electrolyte Membranes provides a systematic overview of the state of the art of PEM development, making the book a beneficial resource for researchers, students, industrial professionals, and manufacturers.
Category: Science

Polymer Electrolyte Membrane And Direct Methanol Fuel Cell Technology

Author : Christoph Hartnig
ISBN : 9780857095480
Genre : Technology & Engineering
File Size : 62.47 MB
Format : PDF, Docs
Download : 540
Read : 583

Polymer electrolyte membrane fuel cells (PEMFCs) and direct methanol fuel cells (DMFCs) technology are promising forms of low-temperature electrochemical power conversion technologies that operate on hydrogen and methanol respectively. Featuring high electrical efficiency and low operational emissions, they have attracted intense worldwide commercialization research and development efforts. These R&D efforts include a major drive towards improving materials performance, fuel cell operation and durability. In situ characterization is essential to improving performance and extending operational lifetime through providing information necessary to understand how fuel cell materials perform under operational loads. Polymer Electrolyte Membrane and Direct Methanol Fuel Cell Technology, Volume 2 details in situ characterization, including experimental and innovative techniques, used to understand fuel cell operational issues and materials performance. Part I reviews enhanced techniques for characterization of catalyst activities and processes, such as X-ray absorption and scattering, advanced microscopy and electrochemical mass spectrometry. Part II reviews characterization techniques for water and fuel management, including neutron radiography and tomography, magnetic resonance imaging and Raman spectroscopy. Finally, Part III focuses on locally resolved characterization methods, from transient techniques and electrochemical microscopy, to laser-optical methods and synchrotron radiography. With its international team of expert contributors, Polymer electrolyte membrane and direct methanol fuel cell technology will be an invaluable reference for low temperature fuel cell designers and manufacturers, as well as materials science and electrochemistry researchers and academics. Polymer electrolyte membrane and direct methanol fuel cell technology is an invaluable reference for low temperature fuel cell designers and manufacturers, as well as materials science and electrochemistry researchers and academics. Details in situ characterisation of polymer electrolyte membrane fuel cells (PEMFCs) and direct methanol fuel cells (DMFCs), including the experimental and innovative techniques used to understand fuel cell operational issues and materials performance Examines enhanced techniques for characterisation of catalyst activities and processes, such as X-ray absorption and scattering, advanced microscopy and electrochemical mass spectrometry Reviews characterisation techniques for water and fuel management, including neutron radiography and tomography, and comprehensively covers locally resolved characterisation methods, from transient techniques to laser-optical methods
Category: Technology & Engineering

Organic Inorganic Composite Polymer Electrolyte Membranes

Author : Dr Inamuddin
ISBN : 9783319527390
Genre : Technology & Engineering
File Size : 85.51 MB
Format : PDF, ePub, Mobi
Download : 483
Read : 679

This volume explores the latest developments in the area of polymer electrolyte membranes (PEMs) used for high-temperature fuel cells. Featuring contributions from an international array of researchers, it presents a unified viewpoint on the operating principles of fuel cells, various methodologies used for the fabrication of PEMs, and issues related to the chemical and mechanical stabilities of the membranes. Special attention is given to the fabrication of electrospun nanocomposite membranes. The editors have consciously placed an emphasis on developments in the area of fast-growing and promising PEM materials obtained via hygroscopic inorganic fillers, solid proton conductors, heterocyclic solvents, ionic liquids, anhydrous H3PO4 blends, and heteropolyacids. This book is intended for fuel cell researchers and students who are interested in a deeper understanding of the organic–inorganic membranes used in fuel cells, membrane fabrication methodologies, properties and clean energy applications.
Category: Technology & Engineering

High Temperature Polymer Electrolyte Membrane Fuel Cells

Author : Qingfeng Li
ISBN : 9783319170824
Genre : Technology & Engineering
File Size : 58.35 MB
Format : PDF, ePub, Docs
Download : 510
Read : 538

This book is a comprehensive review of high-temperature polymer electrolyte membrane fuel cells (PEMFCs). PEMFCs are the preferred fuel cells for a variety of applications such as automobiles, cogeneration of heat and power units, emergency power and portable electronics. The first 5 chapters of the book describe rationalization and illustration of approaches to high temperature PEM systems. Chapters 6 - 13 are devoted to fabrication, optimization and characterization of phosphoric acid-doped polybenzimidazole membranes, the very first electrolyte system that has demonstrated the concept of and motivated extensive research activity in the field. The last 11 chapters summarize the state-of-the-art of technological development of high temperature-PEMFCs based on acid doped PBI membranes including catalysts, electrodes, MEAs, bipolar plates, modelling, stacking, diagnostics and applications.
Category: Technology & Engineering

Proton Exchange Membrane Fuel Cells 6

Author : Thomas Francis Fuller
ISBN : 9781566775014
Genre : Ion-permeable membranes
File Size : 80.80 MB
Format : PDF, ePub, Mobi
Download : 564
Read : 1112

The symposium was devoted to all aspects of research development and engineering of proton exchange membrane fuel cells. Three subareas were covered: materials and electrode processes, fuel cell systems, and durability.
Category: Ion-permeable membranes

Proton Exchange Membrane Fuel Cells 9

Author : T. Fuller
ISBN : 9781566777384
Genre : Fuel cells
File Size : 85.17 MB
Format : PDF, Kindle
Download : 608
Read : 176

This issue of ECS Transactions is devoted to all aspects of research, development, and engineering of proton exchange membrane (PEM) fuel cells and attacks, as well as low-temperature direct-fuel cells. The intention of the symposium is to bring together the international community working on the subject and to enable effective interactions between the research and engineering communities. This issue is sold as a two-part set.
Category: Fuel cells

Separators And Membranes For Batteries Capacitors Fuel Cells And Other Electrochemical Systems

Author : J. Weidner
ISBN : 9781566777728
Genre : Science
File Size : 76.43 MB
Format : PDF, Kindle
Download : 984
Read : 158

The papers included in this issue of ECS Transactions were originally presented in the symposium ¿Separators and Membranes for Batteries, Capacitors, Fuel Cells, and Other Electrochemical Systems¿, held during the 215th meeting of The Electrochemical Society, in San Francisco, CA from May 24 to 29, 2009.
Category: Science

High Temperature Polymer Electrolyte Membrane Fuel Cells

Author : Christian Siegel
ISBN : 9783832539177
Genre : Fuel cells
File Size : 54.82 MB
Format : PDF, Kindle
Download : 859
Read : 1202

A three-dimensional computational fluid dynamics model of a high temperature polymer electrolyte membrane fuel cell, employing a high temperature stable polybenzimidazole membrane electrode assembly doped with phosphoric acid, was developed and implemented using a commercially available finite element software. Three types of flow-fields were modeled and simulated. Selected simulation results at reference operating conditions were compared to the performance curves and to segmented solid-phase temperature and current density measurements. For the segmented measurements, an inhouse developed prototype cell was designed and manufactured. The segmented cell was successfully operated and the solid-phase temperature and the current density distribution were recorded, evaluated, and discussed. Sequentially scanned segmented electrochemical impedance spectroscopy measurements were performed to qualitatively support the observed trends. These measurements were used to identify and determine the causes of the inhomogeneous current density distributions. An equivalent circuit model was developed, the obtained spectra were analyzed, and the model parameters discussed. This work helps to provide a better understanding of the internal behaviour of a running high temperature polymer electrolyte membrane fuel cell and presents valuable data for modeling and simulation. For large fuel cells and complete fuel cell stacks in particular, well designed anode and cathode inlet and outlet sections are expected to aid in achieving flatter quantities distributions and in preventing hot spots over the membrane electrode assembly area, and to develop proper start-up, shut-down, and tempering concepts.
Category: Fuel cells

Polymer Electrolyte Fuel Cells

Author : Michael Eikerling
ISBN : 9781439854068
Genre : Science
File Size : 55.36 MB
Format : PDF, Kindle
Download : 600
Read : 1109

The book provides a systematic and profound account of scientific challenges in fuel cell research. The introductory chapters bring readers up to date on the urgency and implications of the global energy challenge, the prospects of electrochemical energy conversion technologies, and the thermodynamic and electrochemical principles underlying the operation of polymer electrolyte fuel cells. The book then presents the scientific challenges in fuel cell research as a systematic account of distinct components, length scales, physicochemical processes, and scientific disciplines. The main part of the book focuses on theory and modeling. Theoretical tools and approaches, applied to fuel cell research, are presented in a self-contained manner. Chapters are arranged by different fuel cell materials and components, and sections advance through the hierarchy of scales, starting from molecular-level processes in proton-conducting media or electrocatalytic systems and ending with performance issues at the device level, including electrochemical performance, water management, durability, and analysis of failure mechanisms. Throughout, the book gives numerous examples of formidable scientific challenges as well as of tools to facilitate materials design and development of diagnostic methods. It reveals reserves for performance improvements and uncovers misapprehensions in scientific understanding that have misled or may continue to mislead technological development. An indispensable resource for scientifically minded and practically oriented researchers, this book helps industry leaders to appreciate the contributions of fundamental research, and leaders of fundamental research to appreciate the needs of industry.
Category: Science

Fuel Cells Compendium

Author : Dr. Nigel N.P Brandon
ISBN : 0080457258
Genre : Technology & Engineering
File Size : 72.68 MB
Format : PDF, ePub, Docs
Download : 822
Read : 265

Fuel cells continue to be heralded as the energy source of the future, and every year an immense amount of research time and money is devoted making them more economically and technically viable. Fuel Cells Compendium brings together an up-to-date review of the literature and commentary surrounding fuel cells research. Covering all relevant disciplines from science to engineering to policy, it is an exceptional resource for anyone with an invested interest in the field. Provides an comprehensive selection of reviews and other industrially focused material on fuel cells research Broadly scoped to encompass many disciplines, from science to engineering, to applications and policy In-depth coverage of the two major types of fuel cells: Ceramic (Solid Oxide) and Polymers (Proton Exchange Membranes)
Category: Technology & Engineering

Tutorials In Electrochemical Technology Impedance Spectroscopy

Author : M. Orazem
ISBN : 9781566776707
Genre : Science
File Size : 78.73 MB
Format : PDF, ePub, Mobi
Download : 105
Read : 502

The papers included in this issue of ECS Transactions were originally presented in the symposium ¿G3 - Tutorials in Electrochemical Technology: Impedance Spectroscopy,¿ held during the 213th meeting of The Electrochemical Society, in Phoenix, Arizona from May 18 to 23, 2008. This symposium is part of a recurring tutorial series sponsored by the Industrial Electrochemistry and Electrochemical Engineering Division of The Electrochemical Society.
Category: Science

Advanced Supporting Materials For Polymer Electrolyte Membrane Fuel Cells

Author : Narayanamoorthy Bhuvanendran
ISBN : OCLC:1154204990
Genre : Technology
File Size : 71.65 MB
Format : PDF, ePub
Download : 829
Read : 528

Among the various kinds of fuel cell, polymer electrolyte membrane fuel cell (PEMFC) is the most prominent energy conversion device for portable applications. The catalyst-supporting materials provide active triple phase boundary for electrochemical reactions where the reactant molecules can easily interact with the catalyst surface. Catalysts play a vital role for improving the overall efficiency of the fuel cells through the advancement in the catalyst and their supporting materials for cathodic oxygen reduction reaction (ORR) in PEMFCs. The supporting materials mainly contribute to increase the electrocatalytic activity of the catalysts by providing more active surface area and extended life-time. The major roles of supporting materials are (i) they act as electron source with improved conductivity; (ii) they hold the metal nanoparticles; (iii) they possess higher surface area and (iv) they should have better stability under operating conditions. In this chapter, the various supporting materials were reviewed carefully based on their nature and performance toward the electrochemical reduction of oxygen for PEMFCs. They are classified into three major categories as (i) carbon supports; (ii) carbon-free supports, and (iii) polymer nanocomposites. In summary, the overall view on support materials and their role on electrocatalysis for fuel cell reactions is provided.
Category: Technology

Fuel Cell Seminar 2007

Author : M. C. Williams
ISBN : 9781566776394
Genre : Energy conversion
File Size : 55.61 MB
Format : PDF, Kindle
Download : 431
Read : 867

There are many fuel cell technologies, entities, commercialization plans, and research and development activities at various states of maturity. The fuel cell efforts encompassed in this issue represents a major, international research and development and demonstration activity. Fuel cells are a topic of great interest and shall probably remain so for some time. The Fuel Cell Seminar and Exposition remains a major social, technical, and marketing forum for fuel cells. The Electrochemical Society, through its collaboration with the Seminar, is able to bring this issue of ECS Transactions, containing important contributions, to a broad technical audience.
Category: Energy conversion

Electrochemical Power Sources

Author : Vladimir S. Bagotsky
ISBN : 9781118942536
Genre : Technology & Engineering
File Size : 27.2 MB
Format : PDF, ePub, Mobi
Download : 400
Read : 860

Electrochemical Power Sources (EPS) provides in a concise way the operational features, major types, and applications of batteries, fuel cells, and supercapacitors • Details the design, operational features, and applications of batteries, fuel cells, and supercapacitors • Covers improvements of existing EPSs and the development of new kinds of EPS as the results of intense R&D work • Provides outlook for future trends in fuel cells and batteries • Covers the most typical battery types, fuel cells and supercapacitors; such as zinc-carbon batteries, alkaline manganese dioxide batteries, mercury-zinc cells, lead-acid batteries, cadmium storage batteries, silver-zinc batteries and modern lithium batteries
Category: Technology & Engineering

Polymers For Pem Fuel Cells

Author : Hongting Pu
ISBN : 9781118869284
Genre : Technology & Engineering
File Size : 23.85 MB
Format : PDF, Mobi
Download : 976
Read : 879

Including chemical, synthetic, and cross-disciplinary approaches; this book includes the necessary techniques and technologies to help readers better understand polymers for polymer electrolyte membrane (PEM) fuel cells. The methods in the book are essential to researchers and scientists in the field and will lead to further development in polymer and fuel cell technologies. • Provides complete, essential, and comprehensive overview of polymer applications for PEM fuel cells • Emphasizes state-of-the-art developments and methods, like PEMs for novel fuel cells and polymers for fuel cell catalysts • Includes detailed chapters on major topics, like PEM for direct liquid fuel cells and fluoropolymers and non-fluorinated polymers for PEM • Has relevance to a range of industries – like polymer engineering, materials, and green technology – involved with fuel cell technologies and R&D
Category: Technology & Engineering