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Showing 1 - 5 of 5 matches in All Departments
For Researchers, Students, Industrial Professionals, and Manufacturers Electrochemical Reduction of Carbon Dioxide: Fundamentals and Technologies is your guide to improved catalytic performance in the electrochemical reduction of carbon dioxide (CO2). Written by electrochemical energy scientists actively involved in environmental research and development, this book addresses the biggest challenge to CO2 electrochemical reduction-low performance of the electrocatalysts-and outlines practical applications for the effective use of CO2. The authors discuss the development of electrochemical energy devices and consider environmental protection on a macroscopic and microscopic scale. Presenting a systematic overview of CO2 electroreduction, they explain the fundamental principles, describe recent advances, and outline applications for future use. In addition, the authors describe: The main metal electrodes used for CO2 electroreduction Current efficiencies for CO2 reduction products on different metal electrodes The electrochemical conversion of carbon dioxide to produce important chemicals Three categories of reaction conditions: heterogeneous catalysis, low-temperatures electrolysis, and high-temperature electrolysis Developments in CO2 hydrogenation reactions Various analysis methods Progresses in the theoretical electrochemical reduction of CO2 Electrochemical Reduction of Carbon Dioxide: Fundamentals and Technologies covers a variety of topics relevant to the successful use of CO2 electrochemical reduction and utilizes expert contributors at the top of their field. The book functions as a resource for students and professionals involved in materials
For Researchers, Students, Industrial Professionals, and Manufacturers Electrochemical Reduction of Carbon Dioxide: Fundamentals and Technologies is your guide to improved catalytic performance in the electrochemical reduction of carbon dioxide (CO2). Written by electrochemical energy scientists actively involved in environmental research and development, this book addresses the biggest challenge to CO2 electrochemical reduction-low performance of the electrocatalysts-and outlines practical applications for the effective use of CO2. The authors discuss the development of electrochemical energy devices and consider environmental protection on a macroscopic and microscopic scale. Presenting a systematic overview of CO2 electroreduction, they explain the fundamental principles, describe recent advances, and outline applications for future use. In addition, the authors describe: The main metal electrodes used for CO2 electroreduction Current efficiencies for CO2 reduction products on different metal electrodes The electrochemical conversion of carbon dioxide to produce important chemicals Three categories of reaction conditions: heterogeneous catalysis, low-temperatures electrolysis, and high-temperature electrolysis Developments in CO2 hydrogenation reactions Various analysis methods Progresses in the theoretical electrochemical reduction of CO2 Electrochemical Reduction of Carbon Dioxide: Fundamentals and Technologies covers a variety of topics relevant to the successful use of CO2 electrochemical reduction and utilizes expert contributors at the top of their field. The book functions as a resource for students and professionals involved in materials science, electrochemistry, chemical, energy, electrical, and mechanical engineering.
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.
Electrolytes for Electrochemical Supercapacitors provides a state-of-the-art overview of the research and development of novel electrolytes and electrolyte configurations and systems to increase the energy density of electrochemical supercapacitors. Comprised of chapters written by leading international scientists active in supercapacitor research and manufacturing, this authoritative text: Describes a variety of electrochemical supercapacitor electrolytes and their properties, compositions, and systems Compares different electrolytes in terms of their effects on electrochemical supercapacitor performance Examines the interplay between the electrolytes, active electrode materials, and inactive components of the supercapacitors Discusses the design and optimization of electrolyte systems for improving electrochemical supercapacitor performance Explores the challenges electrochemical supercapacitors currently face, offering unique insight into next-generation supercapacitor applications Thus, Electrolytes for Electrochemical Supercapacitors is a valuable resource for the research and development activities of academic researchers, graduate/undergraduate students, industry professionals, and manufacturers of electrode/electrolyte systems and electrochemical energy devices such as batteries, as well as for end users of the technology.
Direct methanol fuel cells (DMFCs), employing liquid methanol as a fuel, offer an attractive option in portable devices due to their simplicity in the system structure (easy storage and supply), no need for fuel reforming or humidification. For obtaining a higher power density, the membranes that show high proton conductivity, and at the same time, low methanol permeability are strongly desired. However, there is achieved only a little progress because of trade-off relations between these parameters. Also the membrane stability, particular to hydrolytic and chemical stability is recognised as a key factor that affects fuel cell performances. In the authors' recent work, they have been working on the design and the development of new families of cost-effective, readily prepared proton-conducting membranes based on chemically cross-linked PVA-PAMPS [poly(vinyl alcohol) and poly(2-acrylamido-2-methyl-1-propanesulfonic acid)] composites. The authors have first introduced new concepts of secondary polymer chains such as "binary chemical cross-linking" or "hydrophobiciser" and the "stabiliser"effect. Also, the authors have established a new concept of PVA-PAMPS based semi-interpenetrating polymer networks (semi-IPNs) by incorporating plasticizer variants R (R = poly(ethylene glycol)(PEG), poly(ethylene glycol) methyl ether (PEGME), poly(ethylene glycol) dimethyl ether (PEGDE), poly(ethylene glycol) diglycidyl ether (PEGDCE)) and poly(ethylene glycol)bis(carboxymethyl)ether (PEGBCME) as the third components. Incorporation of the above concepts promoted not only the high proton conductivity , flexibility with low methanol permeability (1/3 - 1/2 of Nafion 117 membrane), but also the excellent hydrolytic and the oxidative stability of PVA-PAMPS composites. The membrane electrode assembly (MEA) fabricated with PVA-PAMPS composites has been successfully established, which showed the similar open circuit voltage (OCV) to that of Nafion 115, and a power density 52 mW cm-2 at 80oC. A striking feature of the long-term test was that no appreciable decay of the current density was observed during the whole operation time longer than 130 hours at 50oC, and so was the power density. This book is the first time that such long-term operation of DMFC was reported since PVA-PAMPS composite are all hydrocarbon membranes made simply of aliphatic skeletons. They are very different from the perfluorosulfonic membranes such as Nafion, or other reported membranes with aromatic skeletons. Therefore this affords the PVA-PAMPS composites unique structure compared to most of the proposed membranes, which suggests the good candidacy of PVA-PAMPS composites when they are intended for use in low temperature DMFCs.
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