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Synthesis And Properties Of Sulfonated Polyimides Polyvinyl Alcohol Composite Proton Exchange Membrane For Fuel Cell Application
Download Synthesis And Properties Of Sulfonated Polyimides Polyvinyl Alcohol Composite Proton Exchange Membrane For Fuel Cell Application full books in PDF, epub, and Kindle. Read online Synthesis And Properties Of Sulfonated Polyimides Polyvinyl Alcohol Composite Proton Exchange Membrane For Fuel Cell Application ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Synthesis and Properties of Sulfonated Polyimides/poly(vinyl Alcohol) Composite Proton Exchange Membrane for Fuel Cell Application by : 黃偉杰
Download or read book Synthesis and Properties of Sulfonated Polyimides/poly(vinyl Alcohol) Composite Proton Exchange Membrane for Fuel Cell Application written by 黃偉杰 and published by . This book was released on 2010 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electroanalytical Chemistry Research Developments by : P. N. Jiang
Download or read book Electroanalytical Chemistry Research Developments written by P. N. Jiang and published by Nova Publishers. This book was released on 2007 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electroanalytical chemistry, as the name implies, involves the analysis of chemical species through the use of electrochemical methods. Generally, alterations are measured in the concentration of a chemical species by measuring changes in current in response to an applied voltage with respect to time. According to Faraday's law, the charge is directly proportional to the amount of species undergoing a loss (oxidation) or gain (reduction) of electrons. Constant potential amperometry, high-speed chronoamperometry, fast cyclic voltammetry (FCV) and differential pulse voltammetry (DPV) are the most common voltammetric techniques used to detect monoamine neurotransmitters (ie, serotonin, dopamine, norepinephrine). Each method has its pros and cons. In constant potential amperometry, a uniform potential is applied and the change in current is monitored as a function of time. The advantage of this technique is that the time resolution is limited only by the data collection frequency of the instrument.
Book Synopsis Direct Alcohol Fuel Cells by : Horacio R. Corti
Download or read book Direct Alcohol Fuel Cells written by Horacio R. Corti and published by Springer Science & Business Media. This book was released on 2013-12-02 with total page 377 pages. Available in PDF, EPUB and Kindle. 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.
Book Synopsis Nanotechnology in Fuel Cells by : Huaihe Song
Download or read book Nanotechnology in Fuel Cells written by Huaihe Song and published by Elsevier. This book was released on 2022-02-23 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanotechnology in Fuel Cells focuses on the use of nanotechnology in macroscopic and nanosized fuel cells to enhance their performance and lifespan. The book covers the fundamental design concepts and promising applications of nanotechnology-enhanced fuel cells and their advantages over traditional fuel cells in portable devices, including longer shelf life and lower cost. In the case of proton-exchange membrane fuel cells (PEMFCs), nano-membranes could provide 100 times higher conductivity of hydrogen ions in low humidity conditions than traditional membranes. For hydrogen fuel cell, nanocatalysts (Pt hybrid nanoparticles) could provide 12 times higher catalytic activity. This is an important reference source for materials scientists and engineers who are looking to understand how nanotechnology is being used to create more efficient macro- and nanosized fuel cells. - Outlines how fuel cells can be nanoengineered to enhance their performance and lifespan - Covers a variety of fuel cell types, including proton-exchange membrane fuel cells and hydrogen-based fuel cells - Assesses the major challenges of nanoengineering fuel cells at an industrial scale
Book Synopsis Solid State Proton Conductors by : Philippe Knauth
Download or read book Solid State Proton Conductors written by Philippe Knauth and published by John Wiley & Sons. This book was released on 2012-01-18 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proton conduction can be found in many different solid materials, from organic polymers at room temperature to inorganic oxides at high temperature. Solid state proton conductors are of central interest for many technological innovations, including hydrogen and humidity sensors, membranes for water electrolyzers and, most importantly, for high-efficiency electrochemical energy conversion in fuel cells. Focusing on fundamentals and physico-chemical properties of solid state proton conductors, topics covered include: Morphology and Structure of Solid Acids Diffusion in Solid Proton Conductors by Nuclear Magnetic Resonance Spectroscopy Structure and Diffusivity by Quasielastic Neutron Scattering Broadband Dielectric Spectroscopy Mechanical and Dynamic Mechanical Analysis of Proton-Conducting Polymers Ab initio Modeling of Transport and Structure Perfluorinated Sulfonic Acids Proton-Conducting Aromatic Polymers Inorganic Solid Proton Conductors Uniquely combining both organic (polymeric) and inorganic proton conductors, Solid State Proton Conductors: Properties and Applications in Fuel Cells provides a complete treatment of research on proton-conducting materials.
Book Synopsis Polymer Membranes for Fuel Cells by : Javaid Zaidi
Download or read book Polymer Membranes for Fuel Cells written by Javaid Zaidi and published by Springer Science & Business Media. This book was released on 2010-07-15 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the late-1960’s, perfluorosulfonic acid (PFSAs) ionomers have dominated the PEM fuel cell industry as the membrane material of choice. The “gold standard’ amongst the many variations that exist today has been, and to a great extent still is, DuPont’s Nafion® family of materials. However, there is significant concern in the industry that these materials will not meet the cost, performance, and durability requirementsnecessary to drive commercialization in key market segments – es- cially automotive. Indeed, Honda has already put fuel cell vehicles in the hands of real end users that have home-grown fuel cell stack technology incorporating hydrocarbon-based ionomers. “Polymer Membranes in Fuel Cells” takes an in-depth look at the new chem- tries and membrane technologies that have been developed over the years to address the concerns associated with the materials currently in use. Unlike the PFSAs, which were originally developed for the chlor-alkali industry, the more recent hydrocarbon and composite materials have been developed to meet the specific requirements of PEM Fuel Cells. Having said this, most of the work has been based on derivatives of known polymers, such as poly(ether-ether ketones), to ensure that the critical requirement of low cost is met. More aggressive operational requi- ments have also spurred the development on new materials; for example, the need for operation at higher temperature under low relative humidity has spawned the creation of a plethora of new polymers with potential application in PEM Fuel Cells.
Book Synopsis Membrane Modification by : Nidal Hilal
Download or read book Membrane Modification written by Nidal Hilal and published by CRC Press. This book was released on 2012-06-19 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: Membrane Modification: Technology and Applications is written for engineers, scientists, graduate students, and researchers in the field of membrane science and technology, materials science, applied physics, chemistry, and environmental science. The book presents the complete range of membrane modification techniques used to increase efficiency of membrane processes. The book starts with an examination of the use of membrane modification to optimize the performance of membranes used in industry. It concludes by demonstrating how membrane modification can improve separation processes in industrial sectors that are recognized as global polluters of water sources. Features Illustrates the use of Electrochemical Impedance Spectroscopy (EIS) in the characterization of commercial and novel membranes Overviews various surface modification techniques applied to enhance the bulk and surface properties of nanofiber membranes Covers the factors affecting membrane fouling and the use of nanoparticles in membrane modification processes Explores the use of plasma treatment for the modification of polymeric membranes Written by professors, engineers, and researchers in the field, the book covers recent advances and comprehensively describes novel and most-used membrane characterization techniques. Modification of different materials and geometrics include flat-sheet, hollow-fiber, and nano-fiber membranes as well as different membrane processes such as reverse osmosis, membrane distillation, gas separation, pervaporation, and membrane fuel cells. Chapters contain tables, figures, photographs, and theoretical equations to aid with reader comprehension.
Book Synopsis Physicochemical and Thermochemical Properties of Sulfonated Poly(etheretherketone) Electrolyte Membranes by : Stephen Rhoden
Download or read book Physicochemical and Thermochemical Properties of Sulfonated Poly(etheretherketone) Electrolyte Membranes written by Stephen Rhoden and published by . This book was released on 2010 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fuel cells have long been seen as an alternative to combustion powered and diesel powered engines and turbines. Production of energy via a fuel cell conversion method can generate up to 60% efficiency in comparison to 30% using a combustion powered engine, with low co-production of harmful side-products. The polymer electrolyte membrane (PEM) adapted for the fuel cell application is one of the main components that determines the overall efficiency. This research project was focused towards novel PEMs, such as sulfonated poly(etheretherketone) or SPEEK, which are cost-efficient and robust with high proton conductivities under hydrated conditions. The degree of sulfonation (DS) of a particular SPEEK polymer determines the proton conducting ability, as well as the long term durability. For SPEEK with high DS, the proton conduction is facile, but the mechanical stability of the polymer decreases almost proportionally. While low DS SPEEK does not have sufficient sulfonic acid density for fast proton conduction in the membrane, the membrane keeps its mechanical integrity under fully saturated conditions. The main purpose of this work was to address both issues encountered with SPEEK sulfonated to low and high DS. The addition of both solid acids and synthetic cross-links were studied to address the main downfalls of the respective SPEEK polymers. Optimization of these techniques led to increased understanding of PEMs and notably better electrochemical performance of these fuel cell materials. Oxo-acids such as tungsten (VI) oxide (WO3) and phosphotungstic acid (PTA) have been identified as candidate materials for creating SPEEK composite membranes. The chemistry of these oxo-acids is well known, with their use as highly acidic catalyst centers adopted for countless homogeneous and heterogeneous, organic and inorganic reactions. Uniform dispersion of WO3 hydrate in SPEEK solution was done by a sol-gel process in which the filler particles were grown in an ionomer solution, cast and allowed to dry. PTA composites were made by adding the solid acid directly to a solution of the ionomer and casting. The latter casting was allowed to dry and Cs- exchanged to stabilize the PTA from dissolution and leaching from the membrane. The chemical and physical properties of these membranes were characterized and evaluated using mainly conductometric and X-ray photoelectron spectroscopic methods. Composite SPEEK/ PTA membranes showed a 50% decrease in PEM resistance under hydrogen fuel cell testing conditions, while SPEEK/ WO3 composites demonstrated a ten-fold increase in the membrane's in-plane proton conductivity. The chemical and physical properties of these composites changed with respect to their synthesis and fabrication procedures. This study will expound upon their relations.
Book Synopsis Advanced Nanomaterials for Membrane Synthesis and Its Applications by : Woei Jye Lau
Download or read book Advanced Nanomaterials for Membrane Synthesis and Its Applications written by Woei Jye Lau and published by Elsevier. This book was released on 2018-11-21 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Nanomaterials for Membrane Synthesis and Its Applications provides the academic and industrial communities the most up-to-date information on the latest trends in membrane nanomaterials and membrane nanotechnology used in wastewater treatment, environmental technology and energy. The rapid advances in nanomaterials and nanotechnology development over the past decade have resulted in significant growth of the membrane business for various industrial processes, particularly in nanotechnology-based membrane processes. While membrane technology is increasingly being used for liquid and gas separations, it has great potential in a variety of additional applications. As the worldwide academic community has a strong interest in advanced membrane processes, particularly membrane nanotechnology for specific separations, this book provides a timely update on the topic. - Presents a unique focus on the use of advanced nanomaterials in membrane fabrication/modification, and in the description of membrane nanotechnologies, such as nanofiltration, thin film nanocomposites and nanofibers for various applications - Describes next generation membranes, providing first resource details on the development and commercialization stages of these new membranes - Represents the state-of-the-art on the use of nanomaterials in membrane science
Book Synopsis Organic-Inorganic Composite Polymer Electrolyte Membranes by : Dr Inamuddin
Download or read book Organic-Inorganic Composite Polymer Electrolyte Membranes written by Dr Inamuddin and published by Springer. This book was released on 2017-05-10 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Nanotechnology Applications in Environmental Engineering by : Nazir, Rabia
Download or read book Nanotechnology Applications in Environmental Engineering written by Nazir, Rabia and published by IGI Global. This book was released on 2018-08-03 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanotechnology is the twenty-first century revolution that has impacted each and every aspect of life despite its small size. As nanoscale research continues to advance, scientists and engineers are developing new applications for many different disciplines, including environmental applications. Nanotechnology Applications in Environmental Engineering contains innovative research on nanomaterials and their impact on the environment. It also explores the current and potential future applications of nanodevices in environmental science and engineering, showcasing how nanomaterials can be tailored to address some of the environmental remediation and sensing/detection problems faced today. While highlighting topics such as environmental science, nanomaterials, and membrane technology, this book is ideally designed for environmental scientists, nanotechnologists, chemists, engineers, and individuals seeking current research on nanotechnology and its applications in environmental engineering.
Book Synopsis Polymer Chemistry Editor’s Pick 2021 by : Pellegrino Musto
Download or read book Polymer Chemistry Editor’s Pick 2021 written by Pellegrino Musto and published by Frontiers Media SA. This book was released on 2021-09-08 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Characterization of Nanostructured Sulfonated Polyimides for Proton Exchange Membrane Fuel Cells by : Lijun Zou
Download or read book Synthesis and Characterization of Nanostructured Sulfonated Polyimides for Proton Exchange Membrane Fuel Cells written by Lijun Zou and published by . This book was released on 2009 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Specialty Fluorinated Polymers by : Susanta Banerjee
Download or read book Handbook of Specialty Fluorinated Polymers written by Susanta Banerjee and published by William Andrew. This book was released on 2015-04-24 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluoropolymers are used in applications demanding service at enhanced temperature while maintaining their structural integrity and have excellent combination of chemical, physical and mechanical properties. Advancements in materials and processing technology mean that a huge amount of research is currently taking place into new, high performance applications for specialty fluorinated polymers. This book is a complete review of the current research in synthesizing new fluorinated high performance polymers and their application in the field of low dielectric constant materials, membrane based separation (gas and liquid) and proton exchange membranes. Special emphasis is given to the preparation of soluble high performance polymers by incorporating fluorine and different structural elements so as to use these classes of polymers in different membrane based applications, including low dielectric constant materials, gas separation, pervaporation, proton exchange membranes in fuel cells, and more. The coverage of processing properties and commercial aspects - as well as a practical assessment of the advantages and disadvantages of specialty fluoropolymers compared to other materials - enables engineers and product designers to apply the latest scientific developments in this area in a practical setting. Thorough coverage of modern applications for specialty fluorinated polymers, including membranes and coatings – giving insight into recent research and the future direction of this technology Brings researchers and engineers up to date with the latest developments in specialty fluoropolymers, to assist in future materials research and part design Includes detailed assessment of the advantages and shortcomings of specialty fluorinated polymers, for ease of comparison with alternative materials
Book Synopsis Materials for Low-Temperature Fuel Cells by : Bradley Ladewig
Download or read book Materials for Low-Temperature Fuel Cells written by Bradley Ladewig and published by John Wiley & Sons. This book was released on 2015-03-09 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are a large number of books available on fuel cells; however, the majority are on specific types of fuel cells such as solid oxide fuel cells, proton exchange membrane fuel cells, or on specific technical aspects of fuel cells, e.g., the system or stack engineering. Thus, there is a need for a book focused on materials requirements in fuel cells. Key Materials in Low-Temperature Fuel Cells is a concise source of the most important and key materials and catalysts in low-temperature fuel cells. A related book will cover key materials in high-temperature fuel cells. The two books form part of the "Materials for Sustainable Energy & Development" series. Key Materials in Low-Temperature Fuel Cells brings together world leaders and experts in this field and provides a lucid description of the materials assessment of fuel cell technologies. With an emphasis on the technical development and applications of key materials in low-temperature fuel cells, this text covers fundamental principles, advancement, challenges, and important current research themes. Topics covered include: proton exchange membrane fuel cells, direct methanol and ethanol fuel cells, microfluidic fuel cells, biofuel cells, alkaline membrane fuel cells, functionalized carbon nanotubes as catalyst supports, nanostructured Pt catalysts, non-PGM catalysts, membranes, and materials modeling. This book is an essential reference source for researchers, engineers and technicians in academia, research institutes and industry working in the fields of fuel cells, energy materials, electrochemistry and materials science and engineering.
Download or read book Polyimide Membranes written by H Ohya and published by CRC Press. This book was released on 1997-01-30 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a first attempt to provide a general analysis of developments in polyimide membrane synthesis and applications. It will serve as a valuable reference for those with an interest in synthesis of polyimides, the chemistry and physical chemistry of polyimide compounds, the separation properties of membranes and in their preparation and application. It is intended as a summary of the current status of polyimide membrane research for the specialist as well as a teaching aid for graduate studies in polymer chemistry. The authors collaboration demonstrates the high level of scientific research in Russia and the active development of applied research in Japan.
Book Synopsis Carbon Nanomaterials in Clean Energy Hydrogen Systems - II by : Svetlana Yu. Zaginaichenko
Download or read book Carbon Nanomaterials in Clean Energy Hydrogen Systems - II written by Svetlana Yu. Zaginaichenko and published by Springer. This book was released on 2011-05-12 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents selected contributions to the NATO Advanced Research Workshop “Carbon Nanomaterials in Clean Energy Hydrogen Systems” held in June 2010. These original papers reflect recent progress in response to the modern-day requirements in chemistry of carbon nanomaterials and metal-hydrogen systems. Successor to the 2008 proceedings, this second volume focuses on research and application studies of materials capable of interacting actively with hydrogen, also addressing questions of hydrogen accumulation and storage. As a whole, it provides a review of the most relevant areas of hydrogen materials interactions and carbon nanomaterials science, making it invaluable for all researchers, physicists, chemists, post-graduates and young scientists interested in the structure, properties and applications of different nanocarbon materials.
