Carbon and Metal Oxides Based Nanomaterials for Flexible High Performance Asymmetric Supercapacitors

Carbon and Metal Oxides Based Nanomaterials for Flexible High Performance Asymmetric Supercapacitors PDF Author: Yating Hu
Publisher: Springer
ISBN: 9811083428
Category : Technology & Engineering
Languages : en
Pages : 124

Get Book Here

Book Description
This thesis examines electrode materials such as mesoporous carbons, manganese oxides, iron oxides and their nanohybrids with graphene. It also explores several of the key scientific issues that act as the governing principles for future development of supercapacitors, which are a promising class of high-efficiency energy storage devices for tackling a key aspect of the energy crisis. However, critical technical issues, such as the low energy density and reliability, need to be addressed before they can be extended to a wide range of applications with much improved performance. Currently available material candidates for the electrodes all have their disadvantages, such as a low specific capacitance or poor conductivity for transition metal oxide/hydroxide-based materials. This thesis addresses these important issues, and develops a high-performance, flexible asymmetric supercapacitor with manganese oxides/reduced graphene oxide as the positive electrode and iron oxide/reduced graphene oxide as the anode, which delivers a high energy density of 0.056 Wh cm-3.

Carbon and Metal Oxides Based Nanomaterials for Flexible High Performance Asymmetric Supercapacitors

Carbon and Metal Oxides Based Nanomaterials for Flexible High Performance Asymmetric Supercapacitors PDF Author: Yating Hu
Publisher: Springer
ISBN: 9811083428
Category : Technology & Engineering
Languages : en
Pages : 124

Get Book Here

Book Description
This thesis examines electrode materials such as mesoporous carbons, manganese oxides, iron oxides and their nanohybrids with graphene. It also explores several of the key scientific issues that act as the governing principles for future development of supercapacitors, which are a promising class of high-efficiency energy storage devices for tackling a key aspect of the energy crisis. However, critical technical issues, such as the low energy density and reliability, need to be addressed before they can be extended to a wide range of applications with much improved performance. Currently available material candidates for the electrodes all have their disadvantages, such as a low specific capacitance or poor conductivity for transition metal oxide/hydroxide-based materials. This thesis addresses these important issues, and develops a high-performance, flexible asymmetric supercapacitor with manganese oxides/reduced graphene oxide as the positive electrode and iron oxide/reduced graphene oxide as the anode, which delivers a high energy density of 0.056 Wh cm-3.

Microsupercapacitors

Microsupercapacitors PDF Author: Kazufumi Kobashi
Publisher: Woodhead Publishing
ISBN: 008102889X
Category : Technology & Engineering
Languages : en
Pages : 312

Get Book Here

Book Description
Microsupercapacitors systematically guides the reader through the key materials, characterization techniques, performance factors and potential applications and benefits to society of this emerging electrical energy storage solution. The book reviews the technical challenges in scaling down supercapacitors, covering materials, performance, design and applications perspectives. Sections provide a fundamental understanding of microsupercapacitors and compare them to existing energy storage technologies. Final discussions consider the factors that impact performance, potential tactics to improve performance, barriers to implementation, emerging solutions to those barriers, and a future outlook. This book will be of particular interest to materials scientists and engineers working in academia, research and development. - Provides a concise introduction of the fundamental science, related technological challenges, and solutions that microsupercapacitors can offer - Compares microsupercapacitors with current technologies - Reviews the applications of new strategies and the challenge of scaling down supercapacitors - Covers the most relevant applications, including energy storage, energy harvesting, sensors and biomedical devices

Flexible Supercapacitor Nanoarchitectonics

Flexible Supercapacitor Nanoarchitectonics PDF Author: Inamuddin
Publisher: John Wiley & Sons
ISBN: 1119711452
Category : Technology & Engineering
Languages : en
Pages : 674

Get Book Here

Book Description
The 21 chapters in this book presents a comprehensive overview of flexible supercapacitors using engineering nanoarchitectures mediated by functional nanomaterials and polymers as electrodes, electrolytes, and separators, etc. for advanced energy applications. The various aspects of flexible supercapacitors, including capacitor electrochemistry, evaluating parameters, operating conditions, characterization techniques, different types of electrodes, electrolytes, and flexible substrates are covered. This is probably the first book of its type which systematically describes the recent developments and progress in flexible supercapacitor technology, and will be very helpful for generating new and innovative ideas in the field of energy storage material for wearable/flexible industry applications.

Metal Oxides in Supercapacitors

Metal Oxides in Supercapacitors PDF Author: Deepak P. Dubal
Publisher: Elsevier
ISBN: 0128104651
Category : Technology & Engineering
Languages : en
Pages : 294

Get Book Here

Book Description
Metal Oxides in Supercapacitors addresses the fundamentals of metal oxide-based supercapacitors and provides an overview of recent advancements in this area. Metal oxides attract most of the materials scientists use due to their excellent physico-chemical properties and stability in electrochemical systems. This justification for the usage of metal oxides as electrode materials in supercapacitors is their potential to attain high capacitance at low cost. After providing the principles, the heart of the book discusses recent advances, including: binary metal oxides-based supercapacitors, nanotechnology, ternary metal oxides, polyoxometalates and hybrids. Moreover, the factors affecting the charge storage mechanism of metal oxides are explored in detail. The electrolytes, which are the soul of supercapacitors and a mostly ignored character of investigations, are also exposed in depth, as is the fabrication and design of supercapacitors and their merits and demerits. Lastly, the market status of supercapacitors and a discussion pointing out the future scope and directions of next generation metal oxides based supercapacitors is explored, making this a comprehensive book on the latest, cutting-edge research in the field. - Explores the most recent advances made in metal oxides in supercapacitors - Discusses cutting-edge nanotechnology for supercapacitors - Includes fundamental properties of metal oxides in supercapacitors that can be used to guide and promote technology development - Contains contributions from leading international scientists active in supercapacitor research and manufacturing

Nanomaterials for Supercapacitors

Nanomaterials for Supercapacitors PDF Author: Ling Bing Kong
Publisher: CRC Press
ISBN: 1498758436
Category : Science
Languages : en
Pages : 527

Get Book Here

Book Description
New materials hold the key to fundamental advances in energy conversion and storage, both of which are vital in order to meet the challenge of global warming and the finite nature of fossil fuels. Nanomaterials in particular offer unique properties or combinations of properties as electrodes and electrolytes in a range of energy devices. Supercapacitors have been widely acknowledged to be promising devices for energy storage. This book describes the latest progress in the discovery and development of nanoelectrolytes and nanoelectrodes for supercapacitor applications.

Electropolymerization

Electropolymerization PDF Author: Ewa Schab-Balcerzak
Publisher: BoD – Books on Demand
ISBN: 9533076933
Category : Science
Languages : en
Pages : 230

Get Book Here

Book Description
In recent years, great focus has been placed upon polymer thin films. These polymer thin films are important in many technological applications, ranging from coatings and adhesives to organic electronic devices, including sensors and detectors. Electrochemical polymerization is preferable, especially if the polymeric product is intended for use as polymer thin films, because electrogeneration allows fine control over the film thickness, an important parameter for fabrication of devices. Moreover, it was demonstrated that it is possible to modify the material properties by parameter control of the electrodeposition process. Electrochemistry is an excellent tool, not only for synthesis, but also for characterization and application of various types of materials. This book provides a timely overview of a current state of knowledge regarding the use of electropolymerization for new materials preparation, including conducting polymers and various possibilities of applications.

Electrode Materials for Energy Storage and Conversion

Electrode Materials for Energy Storage and Conversion PDF Author: Mesfin A. Kebede
Publisher: CRC Press
ISBN: 1000457869
Category : Science
Languages : en
Pages : 518

Get Book Here

Book Description
This book provides a comprehensive overview of the latest developments and materials used in electrochemical energy storage and conversion devices, including lithium-ion batteries, sodium-ion batteries, zinc-ion batteries, supercapacitors and conversion materials for solar and fuel cells. Chapters introduce the technologies behind each material, in addition to the fundamental principles of the devices, and their wider impact and contribution to the field. This book will be an ideal reference for researchers and individuals working in industries based on energy storage and conversion technologies across physics, chemistry and engineering. FEATURES Edited by established authorities, with chapter contributions from subject-area specialists Provides a comprehensive review of the field Up to date with the latest developments and research Editors Dr. Mesfin A. Kebede obtained his PhD in Metallurgical Engineering from Inha University, South Korea. He is now a principal research scientist at Energy Centre of Council for Scientific and Industrial Research (CSIR), South Africa. He was previously an assistant professor in the Department of Applied Physics and Materials Science at Hawassa University, Ethiopia. His extensive research experience covers the use of electrode materials for energy storage and energy conversion. Prof. Fabian I. Ezema is a professor at the University of Nigeria, Nsukka. He obtained his PhD in Physics and Astronomy from University of Nigeria, Nsukka. His research focuses on several areas of materials science with an emphasis on energy applications, specifically electrode materials for energy conversion and storage.

Science, Technology and Advanced Application of Supercapacitors

Science, Technology and Advanced Application of Supercapacitors PDF Author: Takaya Sato
Publisher: BoD – Books on Demand
ISBN: 1789858011
Category : Technology & Engineering
Languages : en
Pages : 150

Get Book Here

Book Description
Application fields of supercapacitors are expanding because they have a very large charge/discharge current density and a cycle durability of tens of thousands of cycles or more compared to secondary batteries. There are various kinds of supercapacitor: electric double layer capacitors with a relatively long history, pseudocapacitors that utilize electrochemical reactions, and the progress of hybrid capacitor technology that combines double layer capacity and electrochemical reactions. Development of electrode materials and electrolytes and new cell design for constructing devices support the performance improvement and expansion of new applied fields such as automobiles, heavy machinery, and energy harvesting. This book aims to provide engineers with the opportunity to review the latest information by integrating cutting-edge papers on science, technology, and the application of supercapacitors.

Sustainable Nanotechnology for Environmental Remediation

Sustainable Nanotechnology for Environmental Remediation PDF Author: Rama Rao Karri
Publisher: Elsevier
ISBN: 0323852920
Category : Technology & Engineering
Languages : en
Pages : 832

Get Book Here

Book Description
Sustainable Nanotechnology for Environmental Remediation provides a single-source solution to researchers working in environmental, wastewater management, biological and composite nanomaterials applications. It addresses the potential environmental risks and uncertainties surrounding the use of nanomaterials for environmental remediation, giving an understanding of their impact on ecological receptors in addition to their potential benefits. Users will find comprehensive information on the application of state-of-the-art processes currently available to synthesize advanced green nanocomposite materials and biogenic nanomaterials. Other sections explore a wide range of promising approaches for green nanotechnologies and nanocomposites preparations. Case study chapters connect materials engineering and technology to the social context for a sustainable environment. Applications and different case studies provide solutions to the challenges faced by industry, thus minimizing negative social impacts. - Provides information on the use of biologically mediated synthetic protocols to generate nanomaterials - Discusses a wide range of promising?approaches?for?green nanotechnologies and nanocomposites preparations - Presents novel fabrication techniques for bionanocomposites, paving the way for the development of a new generation of advanced materials that can cope with spatiotemporal multi-variant environments

Green Sustainable Process for Chemical and Environmental Engineering and Science

Green Sustainable Process for Chemical and Environmental Engineering and Science PDF Author: Abdullah M. Asiri
Publisher: Elsevier
ISBN: 0128173874
Category : Technology & Engineering
Languages : en
Pages : 412

Get Book Here

Book Description
Green Sustainable Process for Chemical and Environmental Engineering and Science: Ionic Liquids as Green Solvents discusses the application of ionic liquids as environment-friendly solvents in the extraction, separation and purification of organic and inorganic compounds, as reaction media in biochemical and chemical reactions and catalysis, and in green organic and drug syntheses. It covers various industrial applications, from polymer synthesis, to biodiesel and lubrication, paint and pigments, water softening and dry-cleaning, ore refining, the nuclear industry, aerogels, fuel cells, and more. Specific sections cover hydrogenation, oxidation, hydroformylation, acylation, acetylation, dimerization, oligomerization, photochemical and cleavage of ethers reactions. The book's main emphasis lies in the extraction and separation of biomolecules, vitamins, proteins, enzymes, and DNA using ionic liquids as green solvents. High-performance thin layer chromatography and gas chromatography are also discussed. - Presents ionic liquids as an alternative to conventional solvents - Covers organic and drug synthesis using ionic liquids as a solvent - Outlines industrial product development using ionic liquid as a solvent - Includes methods for separation, purification and extraction of biomolecules - Outlines the use of ionic liquids in water, energy and environmental applications