Synthesis and Characterization of Metal Nanoparticles and the Formation of Metal-Polymer Nanocomposites PDF Download
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Author: Anshu A. Pradhan
Publisher:
ISBN:
Category :
Languages : en
Pages : 7
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Book Description
Metal nanoparticles are highly prone to oxidation due to their high surface energy and affinity for oxygen which can lead to the complete oxidation of the particles. Studying and utilizing the unique properties of metal nanoparticles requires minimizing their interaction with the atmosphere. We have used the co-condensation technique to synthesize suspensions of metal nanoparticles in isopropanol. The solvent protects the nanoparticles from the atmosphere and minimizes agglomeration of the nanoparticles. The particles showed a lognormal distribution and the average particle size was below 20nm. Polymer-metal nanocomposites were made by dispersing the metal nanoparticles in PMMA matrix by spin coating and solution casting. Adherent films fibers and free standing films could be obtained by varsing the process conditions. The SEM images show that the nanoparticles in the spun coated films were non-agglomerated and well dispersed over a wide area. Morphology of the spun coated films was different from the solution cast films. Electrically conducting films having interconnected silver particle network could be obtained. Cytotoxicity studies show that the silver nanoparticles and the PMMA-Ag nanocomposite films are antibacterial in nature. We have also dispersed the nanoparticle into pump oil and measured the thermal conductivity of the resultant mixture. The thermal conductivity of the oil could be increased by over 50% by adding an extremely small fraction of the silver nanoparticles.
Author: Anshu A. Pradhan
Publisher:
ISBN:
Category :
Languages : en
Pages : 7
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Book Description
Metal nanoparticles are highly prone to oxidation due to their high surface energy and affinity for oxygen which can lead to the complete oxidation of the particles. Studying and utilizing the unique properties of metal nanoparticles requires minimizing their interaction with the atmosphere. We have used the co-condensation technique to synthesize suspensions of metal nanoparticles in isopropanol. The solvent protects the nanoparticles from the atmosphere and minimizes agglomeration of the nanoparticles. The particles showed a lognormal distribution and the average particle size was below 20nm. Polymer-metal nanocomposites were made by dispersing the metal nanoparticles in PMMA matrix by spin coating and solution casting. Adherent films fibers and free standing films could be obtained by varsing the process conditions. The SEM images show that the nanoparticles in the spun coated films were non-agglomerated and well dispersed over a wide area. Morphology of the spun coated films was different from the solution cast films. Electrically conducting films having interconnected silver particle network could be obtained. Cytotoxicity studies show that the silver nanoparticles and the PMMA-Ag nanocomposite films are antibacterial in nature. We have also dispersed the nanoparticle into pump oil and measured the thermal conductivity of the resultant mixture. The thermal conductivity of the oil could be increased by over 50% by adding an extremely small fraction of the silver nanoparticles.
Author: Luigi Nicolais
Publisher: John Wiley & Sons
ISBN: 0471695424
Category : Science
Languages : en
Pages : 320
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Book Description
A unique guide to an essential area of nanoscience Interest in nano-sized metals has increased greatly due to theirspecial characteristics and suitability for a number of advancedapplications. As technology becomes more refined-including theability to effectively manipulate and stabilize metals at thenanoscale-these materials present ever-more workable solutions to agrowing range of problems. Metal-Polymer Nanocomposites provides the first guidesolely devoted to the unique properties and applications of thisessential area of nanoscience. It offers a truly multidisciplinaryapproach, making the text accessible to readers in physical,chemical, and materials science as well as areas such asengineering and topology. The thorough coverage includes: The chemical and physical properties of nano-sized metals Different approaches to the synthesis of metal-polymernanocomposites (MPN) Advanced characterization techniques and methods for study ofMPN Real-world applications, including color filters, polarizers,optical sensors, nonlinear optical devices, and more An extensive list of references on the topics covered A unique, cutting-edge resource for a vital area of nanosciencedevelopment, Metal-Polymer Nanocomposites is an invaluabletext for students and practitioners of materials science,engineering, polymer science, chemical engineering, electricalengineering, and optics.
Author: Luigi Nicolais
Publisher: John Wiley & Sons
ISBN: 0470109521
Category : Science
Languages : en
Pages : 261
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Book Description
A Step-by-step guide to the synthesis and characterization of metal-polymer nanocomposites Polymer nanocomposites, polymers that are reinforced with nano-sized particles, provide enhanced mechanical, thermal, electrical, and barrier properties. Continued research and development of new polymer nanocomposites promises to provide enhanced materials to a broad range of industries, such as plastics, aerospace, automotive, electronics, packaging, and biomedical devices. Structured as a practical laboratory manual, this book enables readers to expertly synthesize and characterize metal-polymer nanocomposites by clearly setting forth the principles and techniques. Nanocomposites: In Situ Synthesis of Polymer-Embedded Nanostructures features contributions from an international team of materials science and nanotechnology experts. Chapters reflect the authors' critical review of the literature as well as their own laboratory experience working with polymer nanocomposites. The book begins with a detailed introduction to the science, properties, and applications of metal-polymer nanocomposites. Next, it covers such topics as: Morphological and topological concepts Phase separation and nanoparticle aggregation Methods for the synthesis of nanocomposites Morphological control Characterization techniques and data analysis methods Toxicity considerations High-resolution images of metal nanoparticles, created by transmission electron microscopy, are provided throughout the book. There are also plenty of process schemes and detailed drawings, helping readers better understand how to synthesize, characterize, and use these composite materials. A bibliography at the end of each chapter provides a gateway to original research papers and reviews in the field. With its focus on the practical steps of synthesis and characterization, Nanocomposites: In Situ Synthesis of Polymer-Embedded Nanostructures is recommended for both students and practitioners in nanotechnology, polymer science, and materials science and engineering.
Author: Daniel L. Fedlheim
Publisher: CRC Press
ISBN: 9780585404394
Category : Science
Languages : en
Pages : 348
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Book Description
A state-of-the-art reference, Metal Nanoparticles offers the latest research on the synthesis, characterization, and applications of nanoparticles. Following an introduction of structural, optical, electronic, and electrochemical properties of nanoparticles, the book elaborates on nanoclusters, hyper-Raleigh scattering, nanoarrays, and several applications including single electron devices, chemical sensors, biomolecule sensors, and DNA detection. The text emphasizes how size, shape, and surface chemistry affect particle performance throughout. Topics include synthesis and formation of nanoclusters, nanosphere lithography, modeling of nanoparticle optical properties, and biomolecule sensors.
Author: A.D. Pomogailo
Publisher: Springer Science & Business Media
ISBN: 3540265236
Category : Technology & Engineering
Languages : en
Pages : 577
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Book Description
This book presents and analyzes the essential data on nanoscale metal clusters dispersed in, or chemically bonded with polymers. Special attention is paid to the in situ synthesis of the nanocomposites, their chemical interactions, and the size and distribution of the particles in the polymer matrix. Numerous novel nanocomposites are described with regard to their mechanical, electrophysical, optical, magnetic, catalytic and biological properties. Their applications, present and future, are outlined.
Author: Hiran Mayookh Lal
Publisher: Springer Nature
ISBN: 3030442594
Category : Technology & Engineering
Languages : en
Pages : 286
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Book Description
This book focuses on polymer/silver nanocomposites as the main component in bioengineering systems. It describes in detail the synthesis and characterization (morphological, thermal, mechanical & dynamic mechanical properties), as well as the different applications of these composites. A special chapter is dedicated to the toxicity aspects of silver nanoparticles
Author:
Publisher: Elsevier
ISBN: 0128133589
Category : Technology & Engineering
Languages : en
Pages : 612
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Book Description
Colloidal Metal Oxide Nanoparticles: Synthesis, Characterization and Applications is a one-stop reference for anyone with an interest in the fundamentals, synthesis and applications of this interesting materials system. The book presents a simple, effective and detailed discussion on colloidal metal oxide nanoparticles. It begins with a general introduction of colloidal metal oxide nanoparticles, then delves into the most relevant synthesis pathways, stabilization procedures, and synthesis and characterization techniques. Final sections discuss promising applications, including bioimaging, biosensing, diagnostic, and energy applications—i.e., solar cells, supercapacitors and environment applications—i.e., the treatment of contaminated soil, water purification and waste remediation. - Provides the most comprehensive resource on the topic, from fundamentals, to synthesis and characterization techniques - Presents key applications, including biomedical, energy, electronic and environmental - Discusses the most relevant techniques for synthesis, patterning and characterization
Author: Sabu Thomas
Publisher: Woodhead Publishing
ISBN: 0323886418
Category : Science
Languages : en
Pages : 728
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Book Description
Luminescent Metal Nanoclusters: Synthesis, Characterization, and Applications provides a comprehensive accounting of various protocols used for the synthesis of metal nanoclusters, their characterization techniques, toxicity evaluation and various applications and future prospects. The book provides detailed experimental routes, along with mechanisms on the formation of benign metallic clusters using biomaterials and a comprehensive review regarding the preparation, properties and prospective applications of these nano clusters in various fields, including therapeutic applications. Various methods to protect nanocluster materials to increase their stability are emphasized, including the incorporation of ligands (protein, small molecule, DNA, thiols). This book addresses a gap in the current literature by bringing together the preparation, characterization and applications of all the possible types of reported metal nanoclusters and their hybrids. It is suitable for materials scientists and engineers in academia and those working in research and development in industry. It may also be of interest to those working in the interdisciplinary nanotechnology community, such as physical chemists. - Covers the most relevant material categories of luminescent nanoclusters such as metal nanoclusters, nano composites and alloy nanoclusters - Provides a comprehensive overview of the various available methods used for the protection of nanoclusters - Discusses the latest advances and future opportunities in addressing challenges in producing benign nanomaterials such as toxicity and stability
Author: Niranjan Karak
Publisher: Elsevier
ISBN: 0128146168
Category : Technology & Engineering
Languages : en
Pages : 434
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Book Description
Nanomaterials and Polymer Nanocomposites: Raw Materials to Applications brings together the most recent research in nanoparticles and polymer nanocomposites for a range of applications. The book's coverage is comprehensive, starting with synthesis techniques, then moving to characterization and applications of several different classes of nanomaterial and nanoparticle in nanocomposites. By presenting different nanomaterials, such as metal and metal oxides, clay and POSS, carbon nanotubes, cellulose and bio-based polymers in a structured manner, the book enables an efficient comparison of properties and capabilities for these advanced materials, making it relevant both for researchers in an academic environment and also industrial R&D. This book is particularly distinctive because it centers on the raw materials on which the nanocomposites are based, the biological properties of the range of materials discussed, and the environmental and economic considerations of different polymer systems. - Presents a thorough, up-to-date review of the latest advances and developments in the field of nanomaterials and polymer nanocomposites, with a particular focus on raw materials - Includes comprehensive coverage from historical backgrounds, synthesis techniques, characterization, and a detailed look at new and emerging applications for polymer nanocomposites - Provides a range of different material classes, including metal and metal oxides, biopolymers, graphene and cellulose, among others
Author: Suvardhan Kanchi
Publisher: John Wiley & Sons
ISBN: 1119418860
Category : Technology & Engineering
Languages : en
Pages : 705
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Book Description
This groundbreaking book uniquely focuses on the exploration of the green synthesis of metal nanoparticles and their characterization and applications. Metal nanoparticles are the basic elements of nanotechnology as they are the primary source used in the design of nanostructured devices and materials. Nanomaterials can be manufactured either incidentally, with physical or chemical methods, or naturally; and the high demand for them has led to their large-scale production by various toxic solvents or high energy techniques. However, due to the growing awareness of environmental and safety issues, the use of clean, nontoxic and environment-friendly ways to synthesize metal nanoparticles has emerged out of necessity. The use of biological resources, such as microbes, plant parts, vegetable wastes, agricultural wastes, gums, etc., has grown to become an alternative way of synthesizing metal nanoparticles. This biogenic synthesis is green, environmentally friendly, cost-effective, and nontoxic. The current multi-authored book includes recent information and builds a database of bioreducing agents for various metal nanoparticles using different precursor systems. Green Metal Nanoparticles also highlights different simple, cost-effective, environment-friendly and easily scalable strategies, and includes parameters for controlling the size and shape of the materials developed from the various greener methods.
