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Languages : en
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Book Description
One approach to increasing the energy efficiency of windows is to control the amount of solar radiation transmitted through a window by using electrochromic technology. What is unique about this project is that the electrochromic is based on the reduction/oxidation reactions of cathodic and anodic organic semi-conducting polymers using room temperature ionic liquids as ion transport electrolytes. It is believed that these types of coatings would be a lower cost alternative to traditional all inorganic thin film based electrochromic technologies. Although there are patents1 based on the proposed technology, it has never been reduced to practice and thoroughly evaluated (i.e. durability and performance) in a window application. We demonstrate that by using organic semi-conductive polymers, specific bands of the solar spectrum (specifically visible and near infrared) can be targeted for electrochemical variable transmittance responsiveness. In addition, when the technology is incorporated into an insulating glass unit, the energy parameters such as the solar heat gain coefficient and the light to solar gain ratio are improved over that of a typical insulating glass unit comprised of glass with a low emissivity coating. A minimum of (almost equal to)0.02 quads of energy savings per year with a reduction of carbon emissions for electricity of (almost equal to)320 MKg/yr benefit is achieved over that of a typical insulating glass unit including a double silver low-E coating. Note that these values include a penalty in the heating season. If this penalty is removed (i.e. in southern climates or commercial structures where cooling is predominate year-round) a maximum energy savings of (almost equal to)0.05 quad per year and (almost equal to)801 MKg/yr can be achieved over that of a typical insulating glass unit including a double silver low-E coating. In its current state, the technology is not durable enough for an exterior window application. The primary downfall is that the redox chemistry fails to recover to a bleached state upon exposure to heat and solar radiation while being cycled over time from the bleached to the dark state. Most likely the polymers are undergoing degradation reactions which are accelerated by heat and solar exposure while in either the reduced or oxidized states and the performance of the polymers is greatly reduced over time. For this technology to succeed in an exterior window application, there needs to be more work done to understand the degradation of the polymers under real-life application conditions such as elevated temperatures and solar exposure so that recommendations for improvements in to the overall system can be made. This will be the key to utilizing this type of technology in any future real-life applications.
Author: Aline Rougier
Publisher: The Electrochemical Society
ISBN: 9781566774000
Category : Science
Languages : en
Pages : 326
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Book Description
Author: Achchhe Lal Sharma
Publisher: CRC Press
ISBN: 1000756114
Category : Science
Languages : en
Pages : 276
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Book Description
Polymer Electrolytes and their Composites for Energy Storage/Conversion Devices presents a state-of-the-art overview of the research and development in the use of polymers as electrolyte materials for various applications. It covers types of polymer electrolytes, ion dynamics, and the role of dielectric parameters and a review of applications. Divided into two parts, the first part of the book focuses on the types of polymer electrolytes, ion dynamics, and the role of dielectric parameters, while the second part provides a critical review of applications based on polymer electrolytes and their composites. This book: Presents the fundamentals of polymer composites for energy storage/conversion devices Explores the ion dynamics and dielectric properties role in polymer electrolytes Provides detailed preparation methods and important characterization techniques to evaluate the electrolyte potential Reviews analysis of current updates in polymer electrolytes Includes various applications in supercapacitor, battery, fuel cell, and electrochromic windows The book is aimed at researchers and graduate students in physics, materials science, chemistry, materials engineering, energy storage, engineering physics, and industry.
Author: Tan Winie
Publisher: John Wiley & Sons
ISBN: 3527342001
Category : Science
Languages : en
Pages : 416
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Book Description
A comprehensive overview of the main characterization techniques of polymer electrolytes and their applications in electrochemical devices Polymer Electrolytes is a comprehensive and up-to-date guide to the characterization and applications of polymer electrolytes. The authors ? noted experts on the topic ? discuss the various characterization methods, including impedance spectroscopy and thermal characterization. The authors also provide information on the myriad applications of polymer electrolytes in electrochemical devices, lithium ion batteries, supercapacitors, solar cells and electrochromic windows. Over the past three decades, researchers have been developing new polymer electrolytes and assessed their application potential in electrochemical and electrical power generation, storage, and conversion systems. As a result, many new polymer electrolytes have been found, characterized, and applied in electrochemical and electrical devices. This important book: -Reviews polymer electrolytes, a key component in electrochemical power sources, and thus benefits scientists in both academia and industry -Provides an interdisciplinary resource spanning electrochemistry, physical chemistry, and energy applications -Contains detailed and comprehensive information on characterization and applications of polymer electrolytes Written for materials scientists, physical chemists, solid state chemists, electrochemists, and chemists in industry professions, Polymer Electrolytes is an essential resource that explores the key characterization techniques of polymer electrolytes and reveals how they are applied in electrochemical devices.
Author: Shlomo Magdassi
Publisher: John Wiley & Sons
ISBN: 3527338195
Category : Technology & Engineering
Languages : en
Pages : 388
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Book Description
The first book to paint a complete picture of the challenges of processing functional nanomaterials for printed electronics devices, and additive manufacturing fabrication processes. Following an introduction to printed electronics, the book focuses on various functional nanomaterials available, including conducting, semi-conducting, dielectric, polymeric, ceramic and tailored nanomaterials. Subsequent sections cover the preparation and characterization of such materials along with their formulation and preparation as inkjet inks, as well as a selection of applications. These include printed interconnects, passive and active modules, as well as such high-tech devices as solar cells, transparent electrodes, displays, touch screens, sensors, RFID tags and 3D objects. The book concludes with a look at the future for printed nanomaterials. For all those working in the field of printed electronics, from entrants to specialized researchers, in a number of disciplines ranging from chemistry and materials science to engineering and manufacturing, in both academia and industry.
Author: C. Samson Jerold Samuel
Publisher: Bentham Science Publishers
ISBN: 9815039903
Category : Science
Languages : en
Pages : 220
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Book Description
This book highlights the advancements in the manufacture and testing of functional composites, metal matrix composites and polymer matrix composites. Chapters provide information about machinability studies of metals and composites using a variety of analytical techniques. The 12 book chapters also highlight updates in manufacturing technologies like CNC turning processes, electrical discharge machining, end milling, abrasive jet machining, electro chemical machining, additive manufacturing, and resistance spot welding. Readers will learn how to solve applied problems in industrial processing and applications. The book is of significant interest to industrialists working on the basic and experimental parameters for fabricating functional composites and manufacturing technology. Because of the multidisciplinary nature of the presented topics, the information presented in the book is of value to a broad audience involved in research, including materials scientists, chemists, physicists, manufacturing and chemical engineers and processing specialists who are involved and interested in the frontiers of composite materials.
Author:
Publisher: Academic Press
ISBN: 0123751799
Category : Technology & Engineering
Languages : en
Pages : 402
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Book Description
With the increasing demand for smaller, faster, and more highly integrated optical and electronic devices, as well as extremely sensitive detectors for biomedical and environmental applications, a field called nano-optics or nano-photonics/electronics is emerging – studying the many promising optical properties of nanostructures. Like nanotechnology itself, it is a rapidly evolving and changing field – but because of strong research activity in optical communication and related devices, combined with the intensive work on nanotechnology, nano-optics is shaping up fast to be a field with a promising future. This book serves as a one-stop review of modern nano-optical/photonic and nano-electronic techniques, applications, and developments. - Provides overview of the field of Nano-optics/photonics and electronics, detailing practical examples of photonic technology in a wide range of applications - Discusses photonic systems and devices with mathematical rigor precise enough for design purposes - A one-stop review of modern nano-optical/photonic and nano-electronic techniques, applications, and developments
Author: Mihkel Koel
Publisher: CRC Press
ISBN: 1420046470
Category : Science
Languages : en
Pages : 448
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Book Description
An Overview of a Rapidly Expanding Area in Chemistry Exploring the future in chemical analysis research, Ionic Liquids in Chemical Analysis focuses on materials that promise entirely new ways to perform solution chemistry. It provides a broad overview of the applications of ionic liquids in various areas of analytical chemistry, in
Author: Jian Wei Xu
Publisher: Royal Society of Chemistry
ISBN: 1788011430
Category : Technology & Engineering
Languages : en
Pages : 546
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Book Description
Electrochromic Smart Materials covers major topics related to the phenomenon of electrochromism, including fundamental principles, classes and subclasses of electrochromic materials, device processing and manufacturing.
Author: Jingbo Louise Liu
Publisher: ACS Symposium
ISBN: 9780841231160
Category : Science
Languages : en
Pages : 0
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Book Description
The motivation for alternative sources of energy is driven by societal needs and technical advancements in synthesis, design and characterization. Increases in raw material (oil, coal, natural gas) always lead to a reevaluation towards renewable and sustainable energy. The approach of the current generation is to investigate advanced responsive materials including polymers, ceramics and bi-functionalized materials for sustainable and green energy generation, transport, storage and usage. This book's focus covers the potential applications of nanomaterials in energy generation and storage. All ten chapter authors are leading exponents in their respective fields and have been directly or indirectly involved with the ACS symposium or monograph through a rigorous peer review process. This monograph presents an up-to-date and eminently readable collection of papers in energy conversion, storage, and modeling, which would be of great interest to practitioners, directors, fund and program managers, researchers, and engineers in the field of energy generation and storage.
