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Membranes For Electrochemical Applications
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Book Synopsis Membranes for Electrochemical Applications by : J. Weidner
Download or read book Membranes for Electrochemical Applications written by J. Weidner and published by The Electrochemical Society. This book was released on 2008-04 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers included in this issue of ECS Transactions were originally presented in the symposium ¿Membranes for Electrochemical Applications¿, held during the 211th meeting of The Electrochemical Society, in Chicago, IL, from May 6 to 11, 2007.
Book Synopsis Electrochemical Polymer Electrolyte Membranes by : Jianhua Fang
Download or read book Electrochemical Polymer Electrolyte Membranes written by Jianhua Fang and published by CRC Press. This book was released on 2015-04-17 with total page 639 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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: Disc
Book Synopsis Design of New Anion Exchange Membranes for Electrochemical Applications by : Liang Zhu
Download or read book Design of New Anion Exchange Membranes for Electrochemical Applications written by Liang Zhu and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Anion exchange membranes (AEMs) are polymer-based electrolyte solids that conduct anions (OH-, HCO3-, Cl-, et al.), with positively charged groups bound covalently to the polymer backbones. There has been a strong and growing worldwide interest in the use of anion exchange membranes for electrochemical energy conversion and storage systems. Anion exchange membrane fuel cells (AEMFCs) have been regarded as promising energy conversion devices for stationary and mobile applications due to their potential low cost. To realize high-performance AEMFCs, new polymeric membranes are needed that are highly conductive and chemically stable. Herein, cross-linked, multication side chain, and fluorene side chain AEMs based on poly(2,6-dimethyl-1,4-phenylene oxide)s (PPO) were synthesized. PPO was chosen as an AEM substrate because of its ease of functionalization at large scale and relatively good stability and membrane properties. To produce anion conductive and durable polymer electrolytes for alkaline fuel cell applications, a series of cross-linked quaternary ammonium functionalized poly(2,6-dimethyl-1,4-phenylene oxide)s with mass-based ion exchange capacities (IEC) ranging from 1.80 to 2.55 mmol/g were synthesized via thiol-ene click chemistry. From small angle X-ray scattering (SAXS), it was found that the cross-linked membranes developed micro-phase separation between the polar PPO backbone and the hydrophobic alkyl side chains. The ion conductivity, dimensional stability, and alkaline durability of the cross-linked membranes were evaluated. The hydroxide ion conductivity of the cross-linked samples reached 60 mS/cm in liquid water at room temperature. The chemical stabilities of the membranes were evaluated under severe, accelerated aging conditions and degradation was quantified by measuring ion conductivity changes during aging. The cross-linked membranes retained their relatively high ion conductivity and good mechanical properties both in 1 M and 4 M NaOH at 80 °C after 500 h. Attenuated total reflection (ATR) spectra were used to study the degradation pathways of the membranes, and it was discovered that [beta]-hydrogen (Hofmann) elimination was likely to be the major pathway for degradation in these membranes. Side-chain containing AEMs with one, two or three cations per side chain were designed and synthesized, enabling a study of how the degree of polymer backbone functionalization and arrangement of cations on the side chain impact AEM properties. A systematic study of anion exchange membranes (AEMs) with multiple cations per side chain site was conducted to demonstrate how this motif can boost both the conductivity and stability of poly(2,6-dimethyl-1,4-phenylene oxide)-based AEMs. The highest conductivity, up to 99 mS/cm at room temperature, was observed for a triple-cation side chain AEM with 5 or 6 methylene groups between cations. This conductivity was considerably higher than AEM samples based on benzyltrimethyl ammonium or benzyldimethylhexyl ammonium groups with only one cation per side chain site. In addition to high conductivity, the multication side chain AEMs showed good alkaline and dimensional stabilities. High retention of ion exchange capacity (IEC) (93% retention) and ionic conductivity (90% retention) were observed for the triple-cation side chain AEMs during degradation testing in 1 M NaOH at 80 °C for 500 h. Based on the high-performance triple-cation side chain AEM, a Pt-catalyzed fuel cell with a peak power density of 364 mW/cm2 was achieved at 60 °C under 100% related humidity. Anion-conductive copolymers, poly(2,6-dimethyl-1,4-phenylene oxide)s containing fluorene side chains with pendant alkyltrimethylammonium groups, were synthesized via Suzuki-Miyaura coupling of aryl bromides with fluorene-boronic acids. The quaternized copolymers produced ductile, transparent membranes which were soluble in dimethyl formamide, dimethyl sulfoxide and methanol at room temperature. The fluorene side chain-containing membranes showed considerably higher hydroxide ion conductivities, up to 176 mS/cm at 80 °C, compared to that of typical anion exchange membranes based on the benzyltrimethyl ammonium moiety. The results of titration and hydroxide ion conductivity measurements demonstrated excellent chemical stability of the fluorene side chain-containing anion exchange membranes (AEMs), even after 1000 h immersion in 1 M NaOH at 80 °C. The results of this study suggest a scalable route for the preparation of AEMs for practical alkaline fuel cell applications. A unique approach was employed to toughen AEMs by crosslinking the AEMs using commercial Jeffamine additives. Compared to the BTMA40 membrane, the 10% Jeffamine cross-linked membrane demonstrated significantly higher elongation at break. To be specific, the hydrated BTMA40 membrane showed a 51.7% elongation at break, while the 10% Jeffamine cross-linked membrane had a 166.8 % elongation at break. Clearly, the introducing of hydrophilic cross-linked network greatly enhanced the toughness of the AEMs. Overall, this thesis details a number of strategies for the large-scale production of PPO-based anion exchange membranes. These strategies will be useful in going forward in the design and deployment of hydroxide, bromide, bicarbonate, and chloride-conducting membranes for water purification and electrochemical technology.
Book Synopsis Composite Electrolyte & Electrode Membranes for Electrochemical Energy Storage & Conversion Devices by : Giovanni Battista Appetecchi
Download or read book Composite Electrolyte & Electrode Membranes for Electrochemical Energy Storage & Conversion Devices written by Giovanni Battista Appetecchi and published by MDPI. This book was released on 2021-05-05 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrochemical energy systems can successfully exploit beneficial characteristics of electrolyte and/or electrode membranes due to their intriguing peculiarities that make them well-established, standard components in devices such as fuel cells, electrolyzers, and flow batteries. Therefore, more and more researchers are attracted by these challenging yet important issues regarding the performance and behavior of the final device. This Special Issue of Membranes offers scientists and readers involved in these topics an appealing forum to bring and summarize the forthcoming Research & Development results, which stipulates that the composite electrolyte/electrode membranes should be tailored for lithium batteries and fuel cells. Various key aspects, such as synthesis/preparation of materials/components, investigation of the physicochemical and electrochemical properties, understanding of phenomena within the materials and electrolyte/electrode interface, and device manufacturing and performance, were presented and discussed using key research teams from internationally recognized experts in these fields.
Book Synopsis Alkaline Anion Exchange Membranes for Fuel Cells by : Jince Thomas
Download or read book Alkaline Anion Exchange Membranes for Fuel Cells written by Jince Thomas and published by John Wiley & Sons. This book was released on 2024-02-05 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alkaline Anion Exchange Membranes for Fuel Cells Build the fuel cells of the future with this cutting-edge material Alkaline anion exchange membranes (AAEMs) are cutting-edge polyelectrolyte materials with growing renewable energy applications including fuel cells, batteries, hydrogen electrolyzers and electrodialysis technologies. Their use in relatively new alkaline exchange membrane fuel cells (AEMFCs) is designed to produce cost-effective clean energy (electricity) produced by a chemical reaction. Rigorous studies are being conducted to meet the requirements of AAEMs precisely tailored for high anion conductivity and durability for future high energy efficient devices. Hence, over the past few years the academic and industrial scientific communities have explored various polymeric, composite and inorganic materials and studied their properties as a potential AAEM. The accumulated literature in this area of investigation is vast and in order to provide the community with the tools needed to strive forward, there is a clear need to condense this information in a single volume. Alkaline Anion Exchange Membranes for Fuel Cells meets this need with a comprehensive overview of the properties of these membranes and their applications. The book considers recent developments, common challenges, and the long-term prospects for this field of research and engineering. It constitutes a one-stop resource for the development and production of AAEM fuel cells and related electrochemical applications. Alkaline Anion Exchange Membranes for Fuel Cells readers will find: Discussion of electrochemical applications like redox flow batteries, water electrolysis, and many more Detailed treatment of specially tailored cationic groups such as quaternary ammonium and guanidinium Expert advice on efficient fabrication and electrode assembly Alkaline Anion Exchange Membranes for Fuel Cells is ideal for electrochemists, materials scientists, polymer chemists, electrical engineers, and anyone working in power technology or related fields.
Book Synopsis Membranes for Low Temperature Fuel Cells by : Surbhi Sharma
Download or read book Membranes for Low Temperature Fuel Cells written by Surbhi Sharma and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-06-04 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Membranes for Low Temperature Fuel Cells provides a comprehensive review of novel and state-of-the-art polymer electrolyte membrane fuel cells (PEMFC) membranes. The author highlights requirements and considerations for a membrane as an integral part of PEMFC and its interactions with other components. It is an indispensible resource for anyone interested in new PEMFC membrane materials and concerned with the development, optimisation and testing of such membranes. Various composite membranes (polymer and non-polymer) are discussed along with analyses of the latest fi ller materials like graphene, ionic liquids, polymeric ionic liquids, nanostructured metal oxides and membrane concepts unfolding in the field of PEMFC. This book provides the latest academic and technical developments in PEMFC membranes with thorough insights into various preparation, characterisation, and testing methods utilised. Factors affecting proton conduction, water adsorption, and transportation behaviour of membranes are also deliberated upon. Provides the latest academic and technical developments in PEMFC membranes. Reviews recent literature on ex situ studies and in situ single-cell and stack tests investigating the durability (chemical, thermomechanical) and degradation of membranes. Surbhi Sharma, MSc, PhD Working on graphene oxide and fuel cells since 2007, she has published about 50 research articles/book chapters and holds a patent. She has also been awarded various research grants.
Book Synopsis Membranes for Electrochemical Applications by : Electrochemical Society (Ecs)
Download or read book Membranes for Electrochemical Applications written by Electrochemical Society (Ecs) and published by . This book was released on 2008-08-05 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Redox Flow Batteries by : Huamin Zhang
Download or read book Redox Flow Batteries written by Huamin Zhang and published by CRC Press. This book was released on 2017-11-22 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flow batteries have received attention in large-scale energy storage due to their flexible design, high safety, high energy efficiency, and environmental friendliness. In recent years, they have been rapidly developed and tested in a variety of scales that prove their feasibility and advantages of use. As energy becomes a global focus, it is important to consider flow battery systems. This book offers a detailed introduction to the function of different kinds of redox flow batteries, including vanadium flow batteries, as well as the electrochemical processes for their development, materials and components, applications, and near future prospects. Redox Flow Batteries: Fundamentals and Applications will give readers a full understanding of flow batteries from fundamentals to commercial applications.
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 Ion-Exchange Membrane Separation Processes by : H Strathmann
Download or read book Ion-Exchange Membrane Separation Processes written by H Strathmann and published by Elsevier. This book was released on 2004-01-29 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today, membranes and membrane processes are used as efficient tools for the separation of liquid mixtures or gases in the chemical and biomedical industry, in water desalination and wastewater purification. Despite the fact that various membrane processes, like reverse osmosis, are described in great detail in a number of books, processes involving ion-exchange membranes are only described in a fragmented way in scientific journals and patents; even though large industrial applications, like electrodialysis, have been around for over half a century. Therefore, this book is emphasizing on the most relevant aspects of ion-exchange membranes. This book provides a comprehensive overview of ion-exchange membrane separation processes covering the fundamentals as well as recent developments of the different products and processes and their applications. The audience for this book is heterogeneous, as it includes plant managers and process engineers as well as research scientists and graduate students. The separate chapters are based on different topics. The first chapter describes the relevant Electromembrane processes in a general overview. The second chapter explains thermodynamic and physicochemical fundamentals. The third chapter gives information about ion-exchange membrane preparation techniques, while the fourth and fifth chapter discusses the processes as unit operations giving examples for the design of specific plants. First work on the principles and applications of electrodialysis and related separation processes Presently no other comprehensive work that can serve as both reference work and text book is available Book is suited for teaching students and as source for detailed information
Book Synopsis Characterization of Porous Solids by : H. Kral
Download or read book Characterization of Porous Solids written by H. Kral and published by Elsevier. This book was released on 1988-04-01 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance of porosity has long been recognized by scientists and engineers. Porous solids are widely encountered in industry and everyday life and their behaviour, e.g. chemical reactivity, adsorptive capacity, and catalytic activity is dependent on their pore structure. A considerable amount of work on porous solids has been undertaken both in academic and in industrial laboratories. However, all this activity is in urgent need of a critical appraisal. To undertake this task, a number of leading experts in the field of adsorption, porosimetry, X-ray and neutron scattering, optical and electron microscopy, calorimetry and fluid permeation, were brought together at the 1987 IUPAC (COPS I) Symposium.This proceedings volume provides an up-to-date overall review of the theoretical foundations for modelling and characterizing porous systems. It deals with most of the techniques in current use as applied to both model systems and porous solids of industrial importance. The reader will find the description and discussion of a number of novel techniques as well as a critical appraisal and comparison of the more established methods. All those concerned with the characterization of porous solids in academic and industrial laboratories will find much to interest them in this volume. It should be on the bookshelf of applied research centres involved in adsorption, catalysis, purification of gases and liquids, pigments, fillers, building materials, etc.
Book Synopsis Surface Chemistry and Electrochemistry of Membranes by : Torben Smith Sorenson
Download or read book Surface Chemistry and Electrochemistry of Membranes written by Torben Smith Sorenson and published by CRC Press. This book was released on 1999-02-16 with total page 1037 pages. Available in PDF, EPUB and Kindle. Book excerpt: An eclectic mix of studies on chemical and electrochemical behaviour of membrane surfaces. The book looks at membranes - both organic and inorganic - from a host of different perspectives and in the context of many diverse disciplines. It explores the behaviours of both synthetic and biological membranes, employing physical, chemical and physiochem
Book Synopsis High Temperature Polymer Electrolyte Membrane Fuel Cells by : Qingfeng Li
Download or read book High Temperature Polymer Electrolyte Membrane Fuel Cells written by Qingfeng Li and published by Springer. This book was released on 2015-10-15 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Electrochemical Membrane Technology for Water and Wastewater Treatment by : Zhiwei Wang
Download or read book Electrochemical Membrane Technology for Water and Wastewater Treatment written by Zhiwei Wang and published by Elsevier. This book was released on 2022-04-04 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrochemical membrane technology has drawn extensive attention worldwide during the past decade in water and wastewater treatment. Coupling electrochemical process with membrane technology not only enables a higher removal or decomposition of pollutants in waters, but also ensures a more effective control of membrane fouling as well as a more highly selective separation process. The recent development of electrochemical membrane technology has also extended its applications in desalination, energy harvest, and resource recovery from seawater and wastewaters. Electrochemical Membrane Technology for Water and Wastewater Treatment consolidates state-of-the-art research developments in electrochemical membrane technology in water reclamation and sustainability in terms of fundamental theories, membrane and electrode materials, reactor designs, fouling control mechanisms and applications. Electrochemical Membrane Technology for Water and Wastewater Treatment also introduces fundamental theories and applications of electrochemical membrane technology. The knowledge gaps and future research perspectives in electrochemical membrane technology are also addressed. This book is an excellent resource for the understanding of fundamental theories, latest developments and future prospects in electrochemical membrane technology, which can benefit a broad audience of researchers and engineers working in water purification, membrane technology and electrochemical process. Consolidates scattered knowledge of electrochemical membrane technology into a more accessible resource Provides a comprehensive review of fundamental theories, membrane materials and module design as well as the latest developments of electrochemical membrane technology Provides the state-of-art review on the applications of electrochemical membrane technology Includes detailed discussion on the challenges and prospects of electrochemical membrane technology in different applications
Book Synopsis Mixed Conducting Ceramic Membranes by : Xuefeng Zhu
Download or read book Mixed Conducting Ceramic Membranes written by Xuefeng Zhu and published by Springer. This book was released on 2016-11-09 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended to bring together into a single book all aspects of mixed conducting ceramic membranes. It provides a comprehensive description of the fundamentals of mixed ionic-electronic conducting (MIEC) membranes from the basic theories and materials to fabrication and characterization technologies. It also covers the potential applications of MIEC membrane technology in industry. This book offers a valuable resource for all scientists and engineers involved in R&D on mixed conducting ceramic membrane technology, as well as other readers who are interested in catalysis in membrane reactor, solid state electrochemistry, solid oxide fuel cells, and related topics. Xuefeng Zhu, PhD, is a Professor at State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, China. Weishen Yang, PhD, is the team leader for Membrane Catalysis and New Catalytic Materials and a DICP Chair Professor at State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, China.
Book Synopsis Inorganic Membranes for Energy and Environmental Applications by : Arun C. Bose
Download or read book Inorganic Membranes for Energy and Environmental Applications written by Arun C. Bose and published by Springer Science & Business Media. This book was released on 2008-10-08 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research interest in inorganic membrane materials and processes has significantly increased in recent years due to novel, potentially low-cost energy and fuel production applications. This book documents the recent progress in membrane science, especially in advanced materials and novel reaction and separation concepts. The book classifies membranes based on the mechanism of operation, i.e., size exclusion filtration, solution-diffusion, and mixed ion-electron conduction of the permeate streams. This is the first book on the use of inorganic membranes for fuel and energy applications.
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.
