Direct Liquid Fuel Cells

Direct Liquid Fuel Cells
Author: Ramiz Gültekin Akay,Ayşe Bayrakçeken Yurtcan
Publsiher: Academic Press
Total Pages: 328
Release: 2020-09-10
ISBN: 0128187360
Category: Science
Language: EN, FR, DE, ES & NL

Direct Liquid Fuel Cells Book Excerpt:

Direct Liquid Fuel Cells is a comprehensive overview of the fundamentals and specificities of the use of methanol, ethanol, glycerol, formic acid and formate, dimethyl ether, borohydride, hydrazine and other promising liquid fuels in fuel cells. Each chapter covers a different liquid fuel-based fuel cell such as: Anode catalysts of direct methanol fuel cells (DMFCs), future system designs and future trends for direct ethanol fuel cells (DEFCs), development of catalysts for direct glycerol fuel cells (DGFCs), the mechanisms of the reactions taking place at the anode and cathode electrodes, and the reported anode catalysts for direct formic acid fuel cell (DFAFC) and direct formate fuel cell (DFFC), characteristics of direct dimethyl ether fuel cell (DDMEFC), including its electrochemical and operating systems and design, the developments in direct borohydride fuel cells, the development of catalysts for direct hydrazine fuel cells (DHFCs), and also the uncommonly used liquids that have a potential for fuel cell applications including 2-propanol, ethylene glycol, ascorbic acid and ascorbate studied in the literature as well as utilization of some blended fuels. In each part, the most recent literature is reviewed and the state of the art is presented. It also includes examples of practical problems with solutions and a summarized comparison of performance, advantages, and limitations of each type of fuel cell discussed. Direct Liquid Fuel Cells is not a typical textbook but rather designed as a reference book of which any level of students (undergraduate or graduate), instructors, field specialists, industry and general audience, who benefit from current and complete understanding of the many aspects involved in the development and operation of these types of fuel cells, could make use of any chapter when necessary. Presents information on different types of direct liquid fuel cells. Explores information under each section, for specific fuel-based fuel cells in more detail in terms of the materials used. Covers three main sections: direct alcohol, organic fuel-based and inorganic fuel-based fuel cells

Low Contaminant Formic Acid Fuel for Direct Liquid Fuel Cell

Low Contaminant Formic Acid Fuel for Direct Liquid Fuel Cell
Author: Anonim
Publsiher: Unknown
Total Pages: 135
Release: 2009
ISBN: 1928374650XXX
Category: Electronic Book
Language: EN, FR, DE, ES & NL

Low Contaminant Formic Acid Fuel for Direct Liquid Fuel Cell Book Excerpt:

A low contaminant formic acid fuel is especially suited toward use in a direct organic liquid fuel cell. A fuel of the invention provides high power output that is maintained for a substantial time and the fuel is substantially non-flammable. Specific contaminants and contaminant levels have been identified as being deleterious to the performance of a formic acid fuel in a fuel cell, and embodiments of the invention provide low contaminant fuels that have improved performance compared to known commercial bulk grade and commercial purified grade formic acid fuels. Preferred embodiment fuels (and fuel cells containing such fuels) including low levels of a combination of key contaminants, including acetic acid, methyl formate, and methanol.

Synthesis of Ultra low Pt Loading Catalysts for Direct Liquid Fuel Cells

Synthesis of Ultra low Pt Loading Catalysts for Direct Liquid Fuel Cells
Author: Sin Yee Luk
Publsiher: Unknown
Total Pages: 334
Release: 2018
ISBN: 1928374650XXX
Category: Electrocatalysis
Language: EN, FR, DE, ES & NL

Synthesis of Ultra low Pt Loading Catalysts for Direct Liquid Fuel Cells Book Excerpt:

Fuel Cells

Fuel Cells
Author: Vladimir S. Bagotsky
Publsiher: John Wiley & Sons
Total Pages: 385
Release: 2012-03-27
ISBN: 1118087569
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Fuel Cells Book Excerpt:

"This book extracts the most important information on fuel cells, analyzes it, and assesses its scientific value and technical importance. It provides a full yet concise description of all the important aspects of fuel cells from major types to their historical development to inherent scientific and engineering problems and their commercialization and applications. This edition adds two new chapters, one on structural and wetting properties of porous fuel cell components and the other on fuel cells with mixed reactant supply, and updates all chapters with current knowledge for each topic"--

Direct Methanol Fuel Cells

Direct Methanol Fuel Cells
Author: Electrochemical Society. Energy Technology Division,Electrochemical Society. Physical Electrochemistry Division,Electrochemical Society. Battery Division,Electrochemical Society. Meeting
Publsiher: Unknown
Total Pages: 350
Release: 2001
ISBN: 1928374650XXX
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Direct Methanol Fuel Cells Book Excerpt:

"Energy Technology, Physical Electrochemistry and Battery Divisions."

Synthesis of Pt and Pt based Electrocatalysts for Direct Liquid Fuel Cells

Synthesis of Pt and Pt based Electrocatalysts for Direct Liquid Fuel Cells
Author: Fulin Zheng,Hong Kong Polytechnic University. Department of Applied Biology and Chemical Technology
Publsiher: Unknown
Total Pages: 348
Release: 2013
ISBN: 1928374650XXX
Category: Platinum group catalysts
Language: EN, FR, DE, ES & NL

Synthesis of Pt and Pt based Electrocatalysts for Direct Liquid Fuel Cells Book Excerpt:

Direct Alcohol Fuel Cells

Direct Alcohol Fuel Cells
Author: Horacio R. Corti,Ernesto R. Gonzalez
Publsiher: Springer Science & Business Media
Total Pages: 370
Release: 2013-12-02
ISBN: 9400777086
Category: Science
Language: EN, FR, DE, ES & NL

Direct Alcohol Fuel Cells Book Excerpt:

Direct Alcohol Fuel Cells: Materials, Performance, Durability and Applications begins with an introductory overview of direct alcohol fuel cells (DAFC); it focuses on the main goals and challenges in the areas of materials development, performance, and commercialization. The preparation and the properties of the anodic catalysts used for the oxidation of methanol, higher alcohols, and alcohol tolerant cathodes are then described. The membranes used as proton conductors in DAFC are examined, as well as alkaline membranes, focusing on the electrical conductivity and alcohol permeability. The use of different kinds of carbon materials as catalyst supports, gas diffusion layers, and current collectors in DAFC is also discussed. State of the art of the modeling is used to estimate performance and durability. The closing chapter reviews the use of DAFC in portable equipment and mobile devices and features a detailed discussion on the mechanisms of component degradation which limits their durability. This book is written to facilitate the understanding of DAFC technology, applications, and future challenges. It is an excellent introduction for electrochemical and material engineers interested in small fuel cells as portable energy sources, scientists focused on materials science for energy production and storage, as well as policy-makers in the area of renewable energies.

Hydrogen and Fuel Cells

Hydrogen and Fuel Cells
Author: Detlef Stolten
Publsiher: John Wiley & Sons
Total Pages: 908
Release: 2010-09-14
ISBN: 3527327118
Category: Science
Language: EN, FR, DE, ES & NL

Hydrogen and Fuel Cells Book Excerpt:

Authored by 40 of the most prominent and renowned international scientists from academia, industry, institutions and government, this handbook explores mature, evolving technologies for a clean, economically viable alternative to non-renewable energy. In so doing, it includes how hydrogen can be safely produced, stored, transported and utilized, while also covering such broader topics as the environmental impact, education and regulatory developments.

Fuel Cells

Fuel Cells
Author: Vladimir S. Bagotsky
Publsiher: John Wiley & Sons
Total Pages: 344
Release: 2009-08-06
ISBN: 0470432217
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Fuel Cells Book Excerpt:

Fuel Cell Fundamentals

Fuel Cell Fundamentals
Author: Ryan O'Hayre,Suk-Won Cha,Whitney Colella,Fritz B. Prinz
Publsiher: John Wiley & Sons
Total Pages: 600
Release: 2016-04-13
ISBN: 1119114209
Category: Science
Language: EN, FR, DE, ES & NL

Fuel Cell Fundamentals Book Excerpt:

A complete, up-to-date, introductory guide to fuel cell technology and application Fuel Cell Fundamentals provides a thorough introduction to the principles and practicalities behind fuel cell technology. Beginning with the underlying concepts, the discussion explores fuel cell thermodynamics, kinetics, transport, and modeling before moving into the application side with guidance on system types and design, performance, costs, and environmental impact. This new third edition has been updated with the latest technological advances and relevant calculations, and enhanced chapters on advanced fuel cell design and electrochemical and hydrogen energy systems. Worked problems, illustrations, and application examples throughout lend a real-world perspective, and end-of chapter review questions and mathematical problems reinforce the material learned. Fuel cells produce more electricity than batteries or combustion engines, with far fewer emissions. This book is the essential introduction to the technology that makes this possible, and the physical processes behind this cost-saving and environmentally friendly energy source. Understand the basic principles of fuel cell physics Compare the applications, performance, and costs of different systems Master the calculations associated with the latest fuel cell technology Learn the considerations involved in system selection and design As more and more nations turn to fuel cell commercialization amidst advancing technology and dropping deployment costs, global stationary fuel cell revenue is expected to grow from $1.4 billion to $40.0 billion by 2022. The sector is forecasted to explode, and there will be a tremendous demand for high-level qualified workers with advanced skills and knowledge of fuel cell technology. Fuel Cell Fundamentals is the essential first step toward joining the new energy revolution.

Novel Direct Liquid Fuel Cell Membraneless Architecture and Simple Power and Fuel Crossover Control

Novel Direct Liquid Fuel Cell   Membraneless Architecture and Simple Power and Fuel Crossover Control
Author: Anonim
Publsiher: Unknown
Total Pages: 135
Release: 2008
ISBN: 1928374650XXX
Category: Electronic Book
Language: EN, FR, DE, ES & NL

Novel Direct Liquid Fuel Cell Membraneless Architecture and Simple Power and Fuel Crossover Control Book Excerpt:

The convergence of multiple functions in portable electronics is resulting in greater power requirements and a reduced operation time. The incumbent battery technology is not projected to accommodate these requirements. An attractive alternative is the direct liquid fuel cell, in particular the polymer electrolyte membrane (PEM) based direct methanol fuel cell (DMFC), as it does not suffer from the disadvantages associated with conventional battery technology and has the potential for extended and continuous operation. However, the wide spread adoption of the DMFC is prevented by a significant number of barriers that include: fuel crossover, catalyst and fuel utilization, efficiency, overall cost and size. The research presented in this thesis aims to address these areas through the development of simplified cell architectures and operational methods. In a conventional membrane electrode assembly (MEA), a PEM is compressed between an anode and cathode electrode. In this research a new branch of simplified architectures that is unique from those that have been reported in literature has been developed by eliminating and/or integrating key components of a conventional MEA. The membraneless 3D anode approach was shown to be fuel independent and scaleable to a conventional bipolar fuel cell arrangement and exhibits comparable performance to a conventional passive DMFC at ambient conditions (25C, 1 atm). The single electrode supported DMFC was fabricated through a sequential deposition of an anode catalyst layer, an electrically insulating layer and a cathode catalyst layer onto a single carbon fibre paper substrate. This resulted in a 42% reduction in thickness and a 104% improvement in volumetric specific power density over a two electrode DMFC configuration. In addition, simple methods to control fuel crossover and power output were developed and characterized. A perforated graphitic diffusion barrier with engineered properties reduced fuel crossover in the range of ~

Simulation and Analysis of the Direct Methanol Fuel Cell

Simulation and Analysis of the Direct Methanol Fuel Cell
Author: Jeremy Patrick Meyers
Publsiher: Unknown
Total Pages: 600
Release: 1998
ISBN: 1928374650XXX
Category: Fuel cells
Language: EN, FR, DE, ES & NL

Simulation and Analysis of the Direct Methanol Fuel Cell Book Excerpt:

Fuel Cells

Fuel Cells
Author: Vladimir S. Bagotsky
Publsiher: Wiley
Total Pages: 406
Release: 2012-03-27
ISBN: 9781118087565
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Fuel Cells Book Excerpt:

The comprehensive, accessible introduction to fuel cells, their applications, and the challenges they pose Fuel cells—electrochemical energy devices that produce electricity and heat—present a significant opportunity for cleaner, easier, and more practical energy. However, the excitement over fuel cells within the research community has led to such rapid innovation and development that it can be difficult for those not intimately familiar with the science involved to figure out exactly how this new technology can be used. Fuel Cells: Problems and Solutions, Second Edition addresses this issue head on, presenting the most important information about these remarkable power sources in an easy-to-understand way. Comprising four important sections, the book explores: The fundamentals of fuel cells, how they work, their history, and much more The major types of fuel cells, including proton exchange membrane fuel cells (PEMFC), direct liquid fuel cells (DLFC), and many others The scientific and engineering problems related to fuel cell technology The commercialization of fuel cells, including a look at their uses around the world Now in its second edition, this book features fully revised coverage of the modeling of fuel cells and small fuel cells for portable devices, and all-new chapters on the structural and wetting properties of fuel cell components, experimental methods for fuel cell stacks, and nonconventional design principles for fuel cells, bringing the content fully up to date. Designed for advanced undergraduate and graduate students in engineering and chemistry programs, as well as professionals working in related fields, Fuel Cells is a compact and accessible introduction to the exciting world of fuel cells and why they matter.

30th Fuel Cell Seminar

30th Fuel Cell Seminar
Author: M. C. Williams
Publsiher: The Electrochemical Society
Total Pages: 860
Release: 2007-01-01
ISBN: 1566775493
Category: Fuel cells
Language: EN, FR, DE, ES & NL

30th Fuel Cell Seminar Book Excerpt:

This issue of the 2006 Fuel Cell Seminar, held in Honolulu, Hawaii in 2006, marks the 30th Anniversary of the seminar, and contains papers dealing with stationary fuel cell systems, technology development, demonstration, and commercialization of fuel cells. Major topic of discussions throughout the three oral sessions and poster sessions were stationary fuel cell systems, hydrogen systems, and their efficient use as backup systems. Their use as alternative energies and portable fuel cells were also discussed.

Improved Flow Field Structures for Direct Methanol Fuel Cells

Improved Flow Field Structures for Direct Methanol Fuel Cells
Author: Anonim
Publsiher: Unknown
Total Pages: 135
Release: 2013
ISBN: 1928374650XXX
Category: Electronic Book
Language: EN, FR, DE, ES & NL

Improved Flow Field Structures for Direct Methanol Fuel Cells Book Excerpt:

The direct methanol fuel cell (DMFC) is ideal if high energy-density liquid fuels are required. Liquid fuels have advantages over compressed hydrogen including higher energy density and ease of handling. Although state-of-the-art DMFCs exhibit manageable degradation rates, excessive fuel crossover diminishes system energy and power density. Although use of dilute methanol mitigates crossover, the concomitant lowering of the gross fuel energy density (GFED) demands a complex balance-of-plant (BOP) that includes higher flow rates, external exhaust recirculation, etc. An alternative approach is redesign of the fuel delivery system to accommodate concentrated methanol. NuVant Systems Inc. (NuVant) will maximize the GFED by design and assembly of a DMFC that uses near neat methanol. The approach is to tune the diffusion of highly concentrated methanol (to the anode catalytic layer) to the back-diffusion of water formed at the cathode (i.e. in situ generation of dilute methanol at the anode layer). Crossover will be minimized without compromising the GFED by innovative integration of the anode flow-field and the diffusion layer. The integrated flow-field-diffusion-layers (IFDLs) will widen the current and potential DMFC operating ranges and enable the use of cathodes optimized for hydrogen-air fuel cells.

Polymer Electrolyte Membrane and Direct Methanol Fuel Cell Technology

Polymer Electrolyte Membrane and Direct Methanol Fuel Cell Technology
Author: Christoph Hartnig,Christina Roth
Publsiher: Elsevier
Total Pages: 516
Release: 2012-02-20
ISBN: 085709548X
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Polymer Electrolyte Membrane and Direct Methanol Fuel Cell Technology Book Excerpt:

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

Polymers for PEM Fuel Cells

Polymers for PEM Fuel Cells
Author: Hongting Pu
Publsiher: John Wiley & Sons
Total Pages: 432
Release: 2014-09-15
ISBN: 1118329406
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Polymers for PEM Fuel Cells Book Excerpt:

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

Polyphosphazene Based Proton Exchange Membranes for Direct Liquid Methanol Fuel Cells

Polyphosphazene Based Proton Exchange Membranes for Direct Liquid Methanol Fuel Cells
Author: Anonim
Publsiher: Unknown
Total Pages: 19
Release: 2005
ISBN: 1928374650XXX
Category: Electronic Book
Language: EN, FR, DE, ES & NL

Polyphosphazene Based Proton Exchange Membranes for Direct Liquid Methanol Fuel Cells Book Excerpt:

Proton-exchange membranes for direct methanol fuel cells were prepared from sulfonated poly[bis(3-methylphenoxy)phosphazene] and sulfonated poly[bis(phenoxy)phosphazene]. The methylphenoxy polymer was blended with Kynar Flex and solution cast into thin films, whereas the bisphenoxy material was blended with polybenzimidazole (for acid-base complexation crosslinking) prior to membrane casting. Some of the films containing poly[bis(3- methylphenoxy)phosphazene] were UV-crosslinked for added control of swelling and methanol permeability. For most membranes, the proton conductivity was sufficiently high for direct methanol fuel cell (DMFC) applications but the methanol permeability was significantly lower than that in DuPont's Nafion. Membranes composed of sulfonated poly[bis(phenoxy)phosphazene] (SPOP) and polybenzimidazole (PBI) worked particularly well in a DMFC (at 60 degrees C 1.0 M methanol, and ambient pressure air). Membrane performance in a DMFC was dependent on the blend composition (ion-exchange capacity of SPOP and wt% of added PBI). For an 82 m thick membrane composed of 1.2 mmol/g IEC SPOP with 3 wt% PBI, the maximum power density was 89 mW/cm2 (versus 96 mW/cm2 with Nafion 117), while the methanol crossover was 2.6 times lower than that with Nafion 117.

Polymers for PEM Fuel Cells

Polymers for PEM Fuel Cells
Author: Hongting Pu
Publsiher: John Wiley & Sons
Total Pages: 432
Release: 2014-10-01
ISBN: 1118869281
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Polymers for PEM Fuel Cells Book Excerpt:

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

Fuel Cell Systems Explained

Fuel Cell Systems Explained
Author: Andrew L. Dicks,David A. J. Rand
Publsiher: John Wiley & Sons
Total Pages: 488
Release: 2018-07-23
ISBN: 111861352X
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Fuel Cell Systems Explained Book Excerpt:

Since publication of the first edition of Fuel Cell Systems Explained, three compelling drivers have supported the continuing development of fuel cell technology. These are: the need to maintain energy security in an energy-hungry world, the desire to move towards zero-emission vehicles and power plants, and the mitigation of climate change by lowering of CO2 emissions. New fuel cell materials, enhanced stack performance and increased lifetimes are leading to the emergence of the first truly commercial systems in applications that range from fork-lift trucks to power sources for mobile phone towers. Leading vehicle manufacturers have embraced the use of electric drive-trains and now see hydrogen fuel cells complementing advanced battery technology in zero-emission vehicles. After many decades of laboratory development, a global but fragile fuel cell industry is bringing the first commercial products to market. This thoroughly revised edition includes several new sections devoted to, for example, fuel cell characterisation, improved materials for low-temperature hydrogen and liquid-fuelled systems, and real-world technology implementation. Assuming no prior knowledge of fuel cell technology, the third edition comprehensively brings together all of the key topics encompassed in this diverse field. Practitioners, researchers and students in electrical, power, chemical and automotive engineering will continue to benefit from this essential guide to the principles, design and implementation of fuel cell systems.