Electrochemical Synthesis of Nanostructured Materials and Related Anodic Behaviors PDF Download
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Author: Mingliang Wang
Publisher:
ISBN:
Category : Nanotechnology
Languages : en
Pages : 143
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Book Description
[Truncated abstract] This work studies the formation mechanisms of anodized materials and their related electrochemical anodic behaviors. Electrochemical anodization is a versatile method to create various materials with intricate nanostructured morphologies. These materials have potentials for various functional applications in chemical and biomedical sensing, photocatalysis, energy conversion in batteries and supercapacitors. The study is focused on three main aspects: experimental synthesis of anodized materials, theoretical analysis of formation mechanisms of anodized materials and fabrication metallic nanowires using anodized porous alumina. The following summarizes the highlights of the study. Firstly, different anodized structures are synthesized experimentally, including nano-channeled anodized alumina, nanoporous anodized tin oxide and anodized SnC2O4 particles. The related electrochemical behaviors of the metals during anodization are quantified and explained. Anodization current oscillations: The phenomenon of spontaneous periodical current oscillation during electrochemical anodization of tin in alkaline electrolytes is observed. Such phenomenon has been reported in the literature. Attempts have been made to explain this phenomenon on the basis of oxide film lift-off and electrolyte diffusion. This study demonstrates that the current oscillation is caused by oxygen generation and release on the tin anode, causing periodic redistribution of ion concentration in the electrolyte. The analysis also enables determination of the contributions of the two anodic reactions of tin oxidation and oxygen generation to the total anodic current. Secondly, a unified theory for the formation of surface structures of metals induced by anodization is proposed. The theory is based on thermodynamic and electrochemical principles. It is able to explain the main experimental observations of all three types of anodic structures, including solid compact oxide films, porous oxides and porous metal surface layers...
Author: Mingliang Wang
Publisher:
ISBN:
Category : Nanotechnology
Languages : en
Pages : 143
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Book Description
[Truncated abstract] This work studies the formation mechanisms of anodized materials and their related electrochemical anodic behaviors. Electrochemical anodization is a versatile method to create various materials with intricate nanostructured morphologies. These materials have potentials for various functional applications in chemical and biomedical sensing, photocatalysis, energy conversion in batteries and supercapacitors. The study is focused on three main aspects: experimental synthesis of anodized materials, theoretical analysis of formation mechanisms of anodized materials and fabrication metallic nanowires using anodized porous alumina. The following summarizes the highlights of the study. Firstly, different anodized structures are synthesized experimentally, including nano-channeled anodized alumina, nanoporous anodized tin oxide and anodized SnC2O4 particles. The related electrochemical behaviors of the metals during anodization are quantified and explained. Anodization current oscillations: The phenomenon of spontaneous periodical current oscillation during electrochemical anodization of tin in alkaline electrolytes is observed. Such phenomenon has been reported in the literature. Attempts have been made to explain this phenomenon on the basis of oxide film lift-off and electrolyte diffusion. This study demonstrates that the current oscillation is caused by oxygen generation and release on the tin anode, causing periodic redistribution of ion concentration in the electrolyte. The analysis also enables determination of the contributions of the two anodic reactions of tin oxidation and oxygen generation to the total anodic current. Secondly, a unified theory for the formation of surface structures of metals induced by anodization is proposed. The theory is based on thermodynamic and electrochemical principles. It is able to explain the main experimental observations of all three types of anodic structures, including solid compact oxide films, porous oxides and porous metal surface layers...
Author: Nosang Vincent Myung
Publisher: Frontiers Media SA
ISBN: 2889631923
Category :
Languages : en
Pages : 116
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Book Description
Author: Peter C. Searson
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 294
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Book Description
Author: Farzad Nasirpouri
Publisher: Springer
ISBN: 3319449206
Category : Science
Languages : en
Pages : 333
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Book Description
This book provides an overview of electrodeposition of nanomaterials from principles to modern concepts for advanced materials in science and technology. Electrochemical deposition or electrodeposition is explained for fabrication and mass production of functional and nanostructured device materials. The present book spans from principles to modern insights and concepts. It gives a comprehensive overview of the electrochemistry of materials, which is useful as basic information to understand concepts used for nanostructuring of electrodeposited materials, reviews the electrodeposition constituents, thermodynamics and kinetics of electrodeposition, electrochemical and instrumental assessment techniques and other physical factors affecting the electrodeposition mechanisms. A wide variety of nanostructured materials and related concepts and applications are explained with respect to nanocrystals, nanocrystalline films, template-based nanostructures, nanocomposite films, nanostructures on semiconductors, multilayers, mesoporous films, scanning microscopical probe assisted fabrication and galvanic replacement. This book is useful for researchers in materials science, engineering technologists and graduate students. It can also be used as a textbook for undergraduates and graduate students studying related disciplines.
Author: Wei Xia
Publisher: Springer
ISBN: 9811068119
Category : Technology & Engineering
Languages : en
Pages : 148
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Book Description
This thesis systematically introduces readers to a new metal-organic framework approach to fabricating nanostructured materials for electrochemical applications. Based on the metal-organic framework (MOF) approach, it also demonstrates the latest ideas on how to create optimal MOF and MOF-derived nanomaterials for electrochemical reactions under controlled conditions. The thesis offers a valuable resource for researchers who want to understand electrochemical reactions at nanoscale and optimize materials from rational design to achieve enhanced electrochemical performance. It also serves as a useful reference guide to fundamental research on advanced electrochemical energy storage materials and the synthesis of nanostructured materials.
Author: Edson Roberto Leite
Publisher: Springer Science & Business Media
ISBN: 0387493239
Category : Technology & Engineering
Languages : en
Pages : 241
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Book Description
Here is an authoritative reference from world-renowned research groups for those working in materials science and electrochemistry. The authors describe properties of nanostructured materials that can improve performance in alternative energy devices.
Author: Chao-Yang Liu
Publisher:
ISBN:
Category : Electrochemical analysis
Languages : en
Pages : 142
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Book Description
Author: Richard C. Alkire
Publisher: John Wiley & Sons
ISBN: 3527340963
Category : Science
Languages : en
Pages : 432
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Book Description
Volume XVII in the "Advances in Electrochemical Science and Engineering" series, this monograph covers progress in this rapidly developing field with a particular emphasis on important applications, including spectroscopy, medicinal chemistry and analytical chemistry. As such it covers nanopatterned and nanoparticle-modified electrodes for analytical detection, surface spectroscopy, electrocatalysis and a fundamental understanding of the relation between the electrode structure and its function. Written by a group of international experts, this is a valuable resource for researchers working in such fields as electrochemistry, materials science, spectroscopy, analytical and medicinal chemistry.
Author: Patrik Schmuki
Publisher: Springer Science & Business Media
ISBN: 0387735828
Category : Science
Languages : en
Pages : 477
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Book Description
For centuries, electrochemistry has played a key role in technologically important areas such as electroplating or corrosion. In recent decades, electrochemical methods are receiving increasing attention in important strongly growing fields of science and technology such as nanosciences (nanoelectrochemistry) and life-sciences (organic and biological electrochemistry). Characterization, modification and understanding of various electrochemical interfaces or electrochemical processes at the nanoscale, has led to a huge increase of the scientific interest in electrochemical mechanisms as well as of application of electrochemical methods in novel technologies. This book presents exciting emerging scientific and technological aspects of the introduction of the nanodimension in electrochemical approaches are presented in 12 chapters/subchapters.
Author: S. R. S. Prabaharan
Publisher: CRC Press
ISBN: 9814241431
Category : Science
Languages : en
Pages : 382
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Book Description
The challenge of providing adequate power on an indefinite basis without causing long-term damage to the environment requires a versatile means of energy conversion and storage. As such, electrical energy storage is becoming more vital today than at any time in human history. Electrochemical systems, such as batteries, supercapacitors, fuel cells, and photoelectrochemical cells, can help meet this objective. Future generations of rechargeable lithium batteries will be required to power portable electronic devices, store electricity from renewable sources, and serve as a vital component to pursuing electric mobility in the future to reduce fossil fuel demand and mitigate environmental issues. In this context, engineering of new materials, especially at the nanoscale, has become imperative to achieve enhanced energy and power density to meet the future challenges of energy storage. This book outlines the state of the art of nanoscale aspects of advanced energy storage devices, such as lithium-ion batteries, including microbatteries and electrochemical supercapacitors. It focuses on various fundamental issues related to device performance of various positive and negative electrode materials, with special reference to their nanoscale advantages. It also includes fundamentals and processing techniques with regard to synthesis, characterization, physical, and electrochemical properties, and applications of nanoscale materials pertaining to advanced electrochemical power sources. A variety of advanced nanomaterials, such as transition metal oxides, phosphates, silicates, and conversion electrodes, together with some special nanomaterials such as carbon nanotubes, nanorods, and mesoporous carbons are discussed by many notable authorities in the field.
