Download or read book Synthesis and Characterization of Copper Manoparticles and Copper polymer Nanocomposites for Plasmonic Photovoltaic Applications written by Sabastine C. Ezugwu and published by . This book was released on 2012 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Deposition techniques for the fabrication of metal nanostructures influence their morphological properties, which in turn control their optical behavior. Here, copper nanoparticles (np-Cu's) were grown using a deposition system that was specifically set up during this work, and is based on a radio frequency (RF) sputtering source that can operate at high temperature and under bias voltage. The effect of deposition conditions (RF power, chamber pressure and substrate bias voltage) on RF sputtered np-Cu's using RF sputtering has been studied. The study included a comparison between the morphological and optical properties of as-grown np-Cu's and thermally treated samples. The characterization of np-Cu's is carried out by atomic force microscopy, UV-visible transmission spectrophotometry, scanning electron microscopy and scanning near field optical microscopy (SNOM) techniques. The results of the experiment showed that the combined effects of low RF power (25 W - 75 W), high chamber pressure (17 Pa - 23 Pa) and substrate DC bias voltage (300 V - 400 V) are required for obtaining dispersed np-Cu's. Under these conditions, copper nanoparticles grow by aggregation of initial island nuclei due to a reduction in sputtering rate. Significantly, higher dispersed np-Cu's are obtained when a set of samples grown at 25 W and 33 W RF power is subjected to thermal treatment in an oxygen-free glove box. Optical properties of np-Cu's show improvement in the visible region (535nm - 580 nm) related to transmission enhancement in as-deposited samples and plasmonic enhancement in thermally treated ones. Furthermore, an approach to determine the position of the np-Cu induced scattered wave was explored using SNOM (x, z) measurements. In bare np- Cu's the path length of the scattered wave is further from the np surface, measured orthogonally. We demonstrated experimentally a method that uses an SiO2 thin film as a spacer to broaden the scattered wave up to 500 nm from the np-Cu/SiO2 composite surface. The study provides an improved insight that helps to understand the physical mechanisms that may hinder the expected performance in plasmonic solar cells. With these results, the potential of incorporating np-Cu's in plasmonic thin film solar cell structures looks very promising.
Download or read book Synthesis and Characterization of Copper Releasing Polymer Nanoparticles written by Alesha N. Harris and published by . This book was released on 2011 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Copper Sulfate Nanoparticles for Solar Cell Application written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthesis and characterization of copper sulfate nanoparticles for solar cell application.
Download or read book Nanocatalysis written by Vivek Polshettiwar and published by John Wiley & Sons. This book was released on 2013-09-06 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Synthesis Of Copper Nanoparticles And Their Biomedical Applications written by Sampath Malathi and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The emergence of nanoscience and nanotechnology in the last decade presents opportunities for exploring the bactericidal effect of metal nanoparticles. Copper nanoparticles in the present investigation have been synthesized by chemical reduction method using IPA as reducing agent and CTAB as a capping agent. The synthesized copper nanoparticles encapsulated with siddha drug Rajakalimbu. The copper nanoparticles entrap with siddha drug Rajakalimbu characterized by spectral studies ( UV-Vis spectroscopy) and microscopic studies (TEM, AFM). The antibacterial activity of CuNPs as well as drug loaded CuNPs will be investigated against the E.coli and S.aureus. The surface plasmon resonance band at 535nm indicates the formation of copper nanoparticles. The particle size obtained by TEM is 7.5nm. The XRD analysis revealed broad pattern for FCC crystal structure of copper metal. The particle size obtained XRD method using Debye- Sherer is equation is 6.95nm. The drug encapsulated CuNPs exhibit excellent antibacterial activity against E.Coli and S.aureus when compared to the unbound drug.
Download or read book Synthesis and Characterization of Copper Oxide Nanoparticles and Investigation of Their Effects on the Vitality and Metabolism of Astrocytes written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Green Nanoparticles written by Jayanta Kumar Patra and published by Springer Nature. This book was released on 2020-04-06 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanotechnology is the application of science to control matter at the molecular level. It has become one of the most promising applied technologies in all areas of science. Nanoparticles have multi-functional properties and have created very interesting applications in various fields such as medicine, nutrition, bioenergy, agriculture and the environment. But the biogenic syntheses of monodispersed nanoparticles with specific sizes and shapes have been a challenge in biomaterial science. Nanoparticles are of great interest due to their extremely small size and large surface-to-volume ratio, which lead to both chemical and physical differences in their properties (e.g., mechanical properties, biological and sterical properties, catalytic activity, thermal and electrical conductivity, optical absorption and melting point) compared to bulk of the same chemical composition. Recently, however, synthesizing metal nanoparticles using green technology via microorganisms, plants, viruses, and so on, has been extensively studied and has become recognized as a green and efficient way for further exploiting biological systems as convenient nanofactories. Thus the biological synthesis of nanoparticles is increasingly regarded as a rapid, ecofriendly, and easily scaled-up technology. Today researchers are developing new techniques and materials using nanotechnology that may be suitable for plants to boost their native functions. Recently, biological nanoparticles were found to be more pharmacologically active than physico-chemically synthesized nanoparticles. Various applications of biosynthesized nanoparticles have been discovered, especially in the field of biomedical research, such as applications to specific delivery of drugs, use for tumor detection, angiogenesis, genetic disease and genetic disorder diagnosis, photoimaging, and photothermal therapy. Further, iron oxide nanoparticles have been applied to cancer therapy, hyperthermia, drug delivery, tissue repair, cell labeling, targeting and immunoassays, detoxification of biological fluids, magnetic resonance imaging, and magnetically responsive drug delivery therapy. Nanoparticle synthesis for plant byproducts for biomedical applications has vast potential. This book offers researchers in plant science and biomedicine the latest research and opportunity to develop new tools for the synthesis of environmentally friendly and cost-effective nanoparticles for applications in biomedicine as well as other various fields.
Download or read book Characterization of Copper based Nanoparticles and the Application to Photothermal Therapy written by 戴淯瑋 and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Copper Based Cubic and Noble Metal Alloy Nanoparticles for Future in Situ X ray Imaging written by Natnael Mogos and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Nanomaterials written by Kurt E. Geckeler and published by John Wiley & Sons. This book was released on 2009-11-10 with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this first comprehensive compilation of review chapters on this hot topic, more than 30 experts from around the world provide in-depth chapters on their specific areas of expertise, covering such essential topics as: * Block Copolymer Systems, Nanofibers and Nanotubes * Helical Polymer-Based Supramolecular Films * Synthesis of Inorganic Nanotubes * Gold Nanoparticles and Carbon Nanotubes * Recent Advances in Metal Nanoparticle-Attached Electrodes * Oxidation Catalysis by Nanoscale Gold, Silver, and Copper * Concepts in Self-Assembly * Nanocomposites * Amphiphilic Poly(Oxyalkylene)-Amines * Mesoporous Alumina * Nanoceramics for Medical Applications * Ecological Toxicology of Engineered Carbon Nanoparticles * Molecular Imprinting * Near-Field Raman Imaging of Nanostructures and Devices * Fullerene-Rich Nanostructures * Interactions of Carbon Nanotubes with Biomolecules * Nanoparticle-Cored Dendrimers and Hyperbranched Polymers * Nanostructured Organogels via Molecular Self-Assembly * Structural DNA Nanotechnology With its coverage of all such important areas as self-assembly, polymeric materials, bionanomaterials, nanotubes, photonic and environmental aspects, this is an essential reference for materials scientists, engineers, chemists, physicists and biologists wishing to gain an in-depth knowledge of all the disciplines involved.
Download or read book Synthesis Characterization and Mechanism Study of Carbon encapsulated Copper Nanoparticles written by Weiqi Leng and published by . This book was released on 2015 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this project, the synthesis of carbon encapsulated copper nanoparticles using sustainable bioproducts as raw material was systematically studied. The synthesis mechanism, process parameters, and functionalization of carbon encapsulated copper nanoparticles were well established. In a preliminary study, carbon encapsulated copper nanoparticles were successfully synthesized at 1000 °C, 1h, 20 °C/min, and 1800 sccm argon gas flow rate using BCL-DI lignin as the carbon source. Carbon encapsulated copper nanoparticles were mainly located at defect sites. Copper was found not tightly encapsulated by graphene shells. The carbon encapsulated copper nanoparticles were uniformly distributed. The conversion of copper ions into copper atoms occurred at above 300 °C, with the company of decomposition of BCL-DI lignin into CO, CO2, and hydrocarbon gases. The growth of graphene layers was proposed to start above 300 °C. TEM images illustrated the onset of growth of graphene at the edge of the surface at 400 °C, and the formation of graphene bands at 500 °C. Copper catalyst continued to facilitate the decomposition of lignin functional groups at 600 °C. Further increasing the temperature retarded the degradation of lignin, while assisted the reconstruction of the defective sites of the graphene layers, producing higher quality products. Plastic film phase of lignin dominated on the synthesis of carbon encapsulated copper nanoparticles, while gaseous phase had little impact. The orthogonal experiment revealed that temperature played the most important role in the growth of graphene: high temperature was preferred in order to obtain less defective sites. The optimum synthesis parameters were suggested as 1000 °C, 30 min duration time, 20 °C/min temperature rising ramp, and 1200 sccm argon gas flow rate. Post heat treatment was proved to be a feasible way to improve the crystallinity of graphite. Amorphous carbon was removed or converted into crystalline graphite under heat and oxygen. FTIR spectra confirmed the covalent linkages between carbon encapsulated copper nanoparticles and N-methyl-2-pyrrolidone and polyvinylpyrrolidone, indicating a successful functionalization. This study has presented a homogeneous carbon encapsulated copper nanoparticles solution in water and ethanol, and paved ways for further functionalization of CECNs.
Download or read book Nanoscience Advances in CBRN Agents Detection Information and Energy Security written by Plamen Petkov and published by Springer. This book was released on 2015-02-05 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: The preparation and characterization of various nano-scaled materials and their applications in diverse security and safety- related fields. Readers are provided with a broad overview on the topic as it combines articles addressing the preparation and characterization of different nano-scaled materials (metals, oxides, glasses, polymers, carbon-based, etc.). The contributions derive from the lectures and contributions of the NATO Advanced Study Institute meeting “Nanoscience Advances in CBRN Agents Detection, Information and Energy Security” held in Sozopol, Bulgaria, 29 May - 6 June, 2014. In addition, it presents an interdisciplinary approach, utilizing Nanoscience and Nanotechnology research from different disciplines including; physics, chemistry, engineering, materials science and biology. A major advantage of this book, which represents the knowledge of experts from 20 countries, is the combination of longer papers introducing the basic knowledge on a certain topic, and brief contributions highlighting specific applications in different security areas.
Download or read book Bioremediation and Sustainable Technologies for Cleaner Environment written by Marimuthu Prashanthi and published by Springer. This book was released on 2017-03-14 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers insights into the current focus and recent advances in bioremediation and green technology applications for waste minimization and pollution control. Increasing urbanization has an impact on the environment, agriculture and industry, exacerbating the pollution problem and creating an urgent need for sustainable and green eco-friendly remediation technology. Currently, there is heightened interest in environmental research, especially in the area of pollution remediation and waste conversion, and alternative, eco-friendly methods involving better usage of agricultural residues as economically viable substrates for environmental cleanup are still required. The book offers researchers and scholars inspiration, and suggests directions for specific waste management and pollution control. The research presented makes a valuable contribution toward a sustainable and eco-friendly societal environment.
Download or read book Hybrid Nanofillers for Polymer Reinforcement written by Sabu Thomas and published by Elsevier. This book was released on 2024-08-12 with total page 609 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybrid Nanofillers for Polymer Reinforcement: Synthesis, Assembly, Characterization, and Applications provides a targeted approach to hybrid nanostructures, enabling the development of these advanced nanomaterials for specific applications. The book begins by reviewing the status of hybrid nanostructures, their current applications, and future opportunities. This is followed by chapters examining synthesis and characterization techniques, as well as interactions within nanohybrid systems. The second part of the book provides detailed chapters each highlighting a particular application area and discussing the preparation of various hybrid nano systems that can potentially be utilized in that area. The last chapters turn towards notable state-of-the-art hybrid nanomaterials and their properties and applications. This book is a valuable resource for researchers and advanced students across polymer science, nanotechnology, rubber technology, chemistry, sustainable materials, and materials engineering, as well as scientists, engineers, and R&D professionals with an interest in hybrid nanostructures or advanced nanomaterials for a industrial application. Provides synthesis methods, characterization techniques, and structure-property analysis for hybrid nanostructures Offers in-depth coverage that focuses on specific applications across energy storage, environment, automotive, aerospace, construction and biomedicine Includes the latest novel areas, such as elastomeric hybrid nano systems, hybrid ceramic polymer nanocomposites, and self-assembled structures
Download or read book Mechanics of Nanomaterials and Polymer Nanocomposites written by Hind Abdellaoui and published by Springer Nature. This book was released on 2023-07-08 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book delves into the mechanical analysis of the nanomaterials and polymer nanocomposite materials by shedding light on the mechanical performance of nanomaterials, elasticity and viscoelasticity behaviors of polymer nanocomposites, the laminate and sandwich theories, durability and fatigue behaviors. The chapters in this book bring together leading experts in the field to provide an update of the latest scientific results and a fully holistic understanding of the mechanical performance of these materials. The book interests the academic and industrial researchers, R&D managers and engineers working in material and nanomaterial sciences, polymer science and technology, automotive and aerospace engineering, construction and sporting goods, etc. The book also targets the readers that may have no prior knowledge about composite and nanocomposite materials.
Download or read book Functional Materials from Carbon Inorganic and Organic Sources written by Sanjay J. Dhoble and published by Woodhead Publishing. This book was released on 2022-11-23 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: Functional Materials from Carbon, Inorganic and Organic Sources: Methods and Advances describes the basic principles, mechanisms and theoretical background of functional materials. Sections cover Carbon-based functional materials, Inorganic functional materials for renewable and sustainable energy applications, and Organic and biological based functional materials. Applications such as energy storage and conversion, electronic and photonics devices, and in medicine are also explored. Sections dive into photovoltaic devices, light emitting devices, energy storage materials and quantum dot devices, solar cell fundamentals and devices, perovskite materials and ceramic thin films. Final sections emphasize green approaches to synthesis in semiconductor nanoparticles, quinolone complexes, biomaterials and biopolymers. Introduces the reader to a wide range of the most relevant functional materials, including carbon-based materials, inorganic materials for energy applications, and organic and biological based materials Reviews the synthesis and characterization methods used to create, optimize and analyze functional materials properties Discusses the use of functional materials to enable emerging technologies, along with remaining barriers to commercial adoption and opportunities
Download or read book Acts of the General Assembly of His Majesty s Province of New Brunswick written by New Brunswick and published by . This book was released on 1875 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt:
