Synthesis and Properties of Closed Cage Nanostructures (IF) from Group 5 Transition-metal Chalcogenides PDF Download
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Author: Christoph Schuffenhauer
Publisher:
ISBN:
Category :
Languages : en
Pages : 75
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Book Description
Author: Christoph Schuffenhauer
Publisher:
ISBN:
Category :
Languages : en
Pages : 75
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Book Description
Author: Jean Michel Martin
Publisher: John Wiley & Sons
ISBN: 0470987707
Category : Science
Languages : en
Pages : 246
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Book Description
The technology involved in lubrication by nanoparticles is a rapidly developing scientific area and one that has been watched with interest for the past ten years. Nanolubrication offers a solution to many problems associated with traditional lubricants that contain sulphur and phosphorus; and though for some time the production of nanoparticles was restricted by the technologies available, today synthesis methods have been improved to such a level that it is possible to produce large quantities relatively cheaply and efficiently. Nanolubricants develops a new concept of lubrication, based on these nanoparticles, and along with the authors’ own research it synthesises the information available on the topic of nanolubrication from existing literature and presents it in a concise form. Describes the many advantages and potential applications of nanotechnology in the tribological field. Offers a full review of the state-of-the-art as well as much original research that is yet unpublished. Includes sections on boundary lubrication by colloïdal systems, nanolubricants made of metal dichalcogenides, carbon-based nanolubricants, overbased detergent salts, nanolubricants made of metals and boron-based solid nanolubricants and lubrication additives. Authored by highly regarded experts in the field with contributions from leading international academics. Nanolubricants will appeal to postgraduate students, academics and researchers in mechanical engineering, chemical engineering and materials science. It should also be of interest to practising engineers with petroleum companies and mechanical manufacturers.
Author: Desheng Kong
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Metal chalcogenides is a large family of functional materials with rich physical and chemical properties depending on their compositions, dimensions and phases. They have a broad range of applications in electronics, optoelectronics and energy conversion/ storage. The possibility to prepare these materials into low-dimensional nanostructures may allow the access to novel properties that are absent in their bulk counterparts. Such a development, however, requires a reliable approach to controllably synthesize chalcogenides into nanostructures. Here, we primarily employ a horizontal tube furnace reactor to grow such chalcogenide nanomaterials. These nanostructures serve as a material platform to expand the applications of this family of materials towards new areas. We first describe the opportunity to study topological insulator electronic properties in several chalcogenide materials. Topological insulators are narrow-gap semiconductors with metallic electronic states that are always present at their surfaces. The unique property associated with such surface carrier is that the spin direction is determined by its moving direction. The unusual spin texture gives rise to many unusual physical properties. Several chalcogenides are identified as topological insulators based on theoretical calculations and spectroscopic measurements. However, there are many challenges to make use of their exotic properties in electrical measurements. We propose topological insulator nanostructures, with large surface-to-volume ratio, enhance the surface properties in electron transport process. Our systematic transport measurements reveal the signature of the surface carriers on nanostructures of these chalcogenides. Combined with detailed structural and compositional analyses, our studies addressed some material challenges to probe and access the surface electronic properties on these chalcogenide topological insulators. Some chalcogenide nanomaterials also serve as attractive electrocatalysts for water splitting. With the interest to use hydrogen as a sustainable and carbon-free energy carrier, it is attractive to explore and optimize catalyst materials suitable for electrochemical water reduction. Certain layered dichalcogenides, such as MoS2 and WS2, are chemically active electrocatalysts for hydrogen evolution reaction (HER), with the promise to replace noble metal catalysts like Pt. Previous studies have identified the edges of the molecular layers are catalytically active, which opens up a rational pathway to boost the activity by increasing the exposed edge sites. We developed a synthesis technique to produce edge-rich thin films and nanostructures. The structural engineering and further chemical doping process allow us to access novel MoS2 catalyst with high activity for HER. In addition, we also identified a new group of first-row transition metal dichalcogenides (ME2, M = Fe, Co, Ni ; E = S, Se) catalytically active towards HER. These catalysts exhibit excellent activity and stablilty that expand the family of non-precious HER catalysts.
Author: Ahsanulhaq Qurashi
Publisher: John Wiley & Sons
ISBN: 1119008921
Category : Technology & Engineering
Languages : en
Pages : 364
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Book Description
This first ever reference book that focuses on metal chalcogenide semiconductor nanostructures for renewable energy applications encapsulates the state-of-the-art in multidisciplinary research on the metal chalcogenide semiconductor nanostructures (nanocrystals, nanoparticles, nanorods, nanowires, nanobelts, nanoflowers, nanoribbons and more). The properties and synthesis of a class of nanomaterials is essential to renewable energy manufacturing and this book focuses on the synthesis of metal chalcogendie nanostructures, their growth mechanism, optical, electrical, and other important properties and their applications in different diverging fields like photovoltaics, hydrogen production, theromelectrics, lithium battery, energy storage, photocatalysis, sensors. An important reference source for students, scientists, engineers, researchers and industrialists working on nanomaterials-based energy aspects associated with chemistry, physics, materials science, electrical engineering, energy science and technology, and environmental science.
Author: Mohammad Mansoob Khan
Publisher: Elsevier
ISBN: 0128209178
Category : Technology & Engineering
Languages : en
Pages : 378
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Book Description
Chalcogenide-Based Nanomaterials as Photocatalysts deals with the different types of chalcogenide-based photocatalytic reactions, covering the fundamental concepts of photocatalytic reactions involving chalcogenides for a range of energy and environmental applications. Sections focus on nanostructure control, synthesis methods, activity enhancement strategies, environmental applications, and perspectives of chalcogenide-based nanomaterials. The book offers guidelines for designing new chalcogenide-based nanoscale photocatalysts at low cost and high efficiency for efficient utilization of solar energy in the areas of energy production and environment remediation. Provides information on the development of novel chalcogenide-based nanomaterials Outlines the fundamentals of chalcogenides-based photocatalysis Includes techniques for heterogeneous catalysis based on chalcogenide-based nanomaterials
Author: Mirtat Bouroushian
Publisher: Springer Science & Business Media
ISBN: 3642039677
Category : Science
Languages : en
Pages : 365
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Book Description
The author provides a unified account of the electrochemical material science of metal chalcogenide (MCh) compounds and alloys with regard to their synthesis, processing and applications. Starting with the chemical fundamentals of the chalcogens and their major compounds, the initial part of the book includes a systematic description of the MCh solids on the basis of the Periodic Table in terms of their structures and key properties. This is followed by a general discussion on the electrochemistry of chalcogen species, and the principles underlying the electrochemical formation of inorganic compounds/alloys. The core of the book offers an insight into available experimental results and inferences regarding the electrochemical preparation and microstructural control of conventional and novel MCh structures. It also aims to survey their photoelectrochemistry, both from a material-oriented point of view and as connected to specific processes such as photocatalysis and solar energy conversion. Finally, the book illustrates the relevance of MCh materials to various applications of electrochemical interest such as (electro)catalysis in fuel cells, energy storage with intercalation electrodes, and ion sensing.
Author: Vivek Polshettiwar
Publisher: John Wiley & Sons
ISBN: 1118609808
Category : Technology & Engineering
Languages : en
Pages : 670
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Book Description
Exhibiting both homogeneous and heterogeneous catalytic properties, nanocatalysts allow for rapid and selective chemical transformations, with the benefits of excellent product yield and ease of catalyst separation and recovery. This book reviews the catalytic performance and the synthesis and characterization of nanocatalysts, examining the current state of the art and pointing the way towards new avenues of research. Moreover, the authors discuss new and emerging applications of nanocatalysts and nanocatalysis, from pharmaceuticals to fine chemicals to renewable energy to biotransformations. Nanocatalysis features contributions from leading research groups around the world. These contributions reflect a thorough review of the current literature as well as the authors’ first-hand experience designing and synthesizing nanocatalysts and developing new applications for them. The book’s nineteen chapters offer a broad perspective, covering: Nanocatalysis for carbon-carbon and carbon-heteroatom coupling reactions Nanocatalysis for various organic transformations in fine chemical synthesis Nanocatalysis for oxidation, hydrogenation, and other related reactions Nanomaterial-based photocatalysis and biocatalysis Nanocatalysts to produce non-conventional energy such as hydrogen and biofuels Nanocatalysts and nano-biocatalysts in the chemical industry Readers will also learn about the latest spectroscopic and microscopy tools used in advanced characterization methods that shed new light on nanocatalysts and nanocatalysis. Moreover, the authors offer expert advice to help readers develop strategies to improve catalytic performance. Summarizing and reviewing all the most important advances in nanocatalysis over the last two decades, this book explains the many advantages of nanocatalysts over conventional homogeneous and heterogeneous catalysts, providing the information and guidance needed for designing green, sustainable catalytic processes.
Author: Babak Anasori
Publisher: Springer Nature
ISBN: 3030190269
Category : Technology & Engineering
Languages : en
Pages : 534
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Book Description
This book describes the rapidly expanding field of two-dimensional (2D) transition metal carbides and nitrides (MXenes). It covers fundamental knowledge on synthesis, structure, and properties of these new materials, and a description of their processing, scale-up and emerging applications. The ways in which the quickly expanding family of MXenes can outperform other novel nanomaterials in a variety of applications, spanning from energy storage and conversion to electronics; from water science to transportation; and in defense and medical applications, are discussed in detail.
Author: Luis Liz-Marzán
Publisher: CRC Press
ISBN: 1000020967
Category : Medical
Languages : en
Pages : 911
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Book Description
Noble metal nanoparticles have attracted enormous scientific and technological interest because of their unique optical properties, which are related to surface plasmon resonances. The interest in nanosized metal particles dates back to ancient societies, when metals were used in various forms as decorative elements. From the famous Lycurgus cup, made by the Romans in the 4th century AD, through thousands of stained glasses in churches and cathedrals all over medieval Europe, bright-yellow, green, or red colors have been obtained by a touch of metallic additions during glass blowing. This peculiar interaction of light with nanometals can be widely tuned through the morphology and assembly of nanoparticles, thereby expanding the range of potential applications, from energy and information storage to biomedicine, including novel diagnostic and therapeutic methods. This book compiles recent developments that clearly illustrate the state of the art in this cutting-edge research field. It comprises different review articles written by the teams of Prof. Luis Liz-Marzán, an international leader in chemical nanotechnology who has made seminal contributions to the use of colloid chemistry methods to understand and tailor the growth of metal particles at the nanoscale. Apart from synthesis, the book also describes in detail the plasmonic properties of nanomaterials and illustrates some representative applications. This book will appeal to anyone involved in nanotechnology, nanocrystal growth, nanoplasmonics, and surface-enhanced spectroscopies.
Author: Guozhong Cao
Publisher: World Scientific Publishing Company
ISBN: 981310077X
Category : Science
Languages : en
Pages : 596
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Book Description
This is the 2nd edition of the original “Nanostructures and Nanomaterials” written by Guozhong Cao and published by Imperial College Press in 2004.This important book focuses not only on the synthesis and fabrication of nanostructures and nanomaterials, but also includes properties and applications of nanostructures and nanomaterials, particularly inorganic nanomaterials. It provides balanced and comprehensive coverage of the fundamentals and processing techniques with regard to synthesis, characterization, properties, and applications of nanostructures and nanomaterials. Both chemical processing and lithographic techniques are presented in a systematic and coherent manner for the synthesis and fabrication of 0-D, 1-D, and 2-D nanostructures, as well as special nanomaterials such as carbon nanotubes and ordered mesoporous oxides. The book will serve as a general introduction to nanomaterials and nanotechnology for teaching and self-study purposes.
