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Author : Jason Tavares
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)
Download or read book Dual Plasma Synthesis of Functionalized Metal Nanoparticles written by Jason Tavares and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Edward J. Swanson
Publisher :
ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.:/5 (429 download)
Download or read book Dual-plasma Synthesis of Coated Metal Nanoparticles with Controlled Surface Properties written by Edward J. Swanson and published by . This book was released on 2008 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Cao Qin
Publisher :
ISBN 13 :
Total Pages : 226 pages
Book Rating : 4.:/5 (316 download)
Download or read book Synthesis of Organic Layer-coated Metal Nanoparticles in a Dual-plasma Process written by Cao Qin and published by . This book was released on 2007 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The effects of operating conditions such as reactor pressure and inert gas flow rate on the average size of the produced bare copper nanoparticles were studied. It was demonstrated that the metal nanoparticle size tends to decrease with decreasing reactor pressure, while inert gas flow rate has little influence on the mean nanoparticle size." --
Author : Sebastian Ekeroth
Publisher : Linköping University Electronic Press
ISBN 13 : 9176850099
Total Pages : 58 pages
Book Rating : 4.1/5 (768 download)
Download or read book Plasma Synthesis and Self-Assembly of Magnetic Nanoparticles written by Sebastian Ekeroth and published by Linköping University Electronic Press. This book was released on 2019-11-08 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanomaterials are important tools for enabling technological progress as they can provide dramatically different properties as compared to the bulk counterparts. The field of nanoparticles is one of the most investigated within nanomaterials, thanks to the existing, relatively simple, means of manufacturing. In this thesis, high-power pulsed hollow cathode sputtering is used to nucleate and grow magnetic nanoparticles in a plasma. This sputtering technique provides a high degree of ionization of the sputtered material, which has previously been shown to aid in the growth of the nanoparticles. The magnetic properties of the particles are utilized and makes it possible for the grown particles to act as building blocks for self-assembly into more sophisticated nano structures, particularly when an external magnetic field is applied. These structures created are termed “nanowires” or “nanotrusses”, depending on the level of branching and inter-linking that occurs. Several different elements have been investigated in this thesis. In a novel approach, it is shown how nanoparticles with more advanced structures, and containing material from two hollow cathodes, can be fabricated using high-power pulses. The dual-element particles are achieved by using two distinct and individual elemental cathodes, and a pulse process that allows tuning of individual pulses separately to them. Nanoparticles grown and investigated are Fe, Ni, Pt, Fe-Ni and Ni-Pt. Alternatively, the addition of oxygen to the process allows the formation of oxide or hybrid metal oxide – metal particles. For all nanoparticles containing several elements, it is demonstrated that the stoichiometry can be easily varied, either by the amount of reactive gas let into the process or by tuning the amount of sputtered material through adjusting the electric power supplied to the different cathodes. One aim of the presented work is to find a suitable material for the use as a catalyst in the production of H2 gas through the process of water splitting. H2 is a good candidate to replace fossil fuels as an energy carrier. However, rare elements (such as Ir or Pt) needs to be used as the catalyst, otherwise a high overpotential is required for the splitting to occur, leading to a low efficiency. This work demonstrates a possible route to avoid this, by using nanomaterials to increase the surface-to-volume ratio, as well as optimizing the elemental ratio between different materials to lower the amount of noble elements required.
Author : Pawel Pohl
Publisher : MDPI
ISBN 13 : 3039213954
Total Pages : 160 pages
Book Rating : 4.0/5 (392 download)
Download or read book Plasma based Synthesis and Modification of Nanomaterials written by Pawel Pohl and published by MDPI. This book was released on 2020-05-12 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, entitled “Plasma-Based Synthesis and Modification of Nanomaterials” is a collection of nine original research articles devoted to the application of different atmospheric pressure (APPs) and low-pressure (LPPs) plasmas for the synthesis or modification of various nanomaterials (NMs) of exceptional properties. These articles also show the structural and morphological characterization of the synthesized NMs and their further interesting and unique applications in different areas of science and technology. The readers interested in the capabilities of plasma-based treatments will quickly be convinced that APPs and LPPs enable one to efficiently synthesize or modify differentiated NMs using a minimal number of operations. Indeed, the presented procedures are eco-friendly and usually involve single-step processes, thus considerably lowering labor investment and costs. As a result, the production of new NMs and their functionalization is more straightforward and can be carried out on a much larger scale compared to other methods and procedures involving complex chemical treatments and processes. The size and morphology, as well as the structural and optical properties of the resulting NMs are tunable and tailorable. In addition to the desirable and reproducible physical dimensions, crystallinity, functionality, and spectral properties of the resultant NMs, the NMs fabricated and/or modified with the aid of APPs are commonly ready-to-use prior to their specific applications, without any initial pre-treatments.
Author : Bharat Bhanvase
Publisher : Academic Press
ISBN 13 : 0128219475
Total Pages : 460 pages
Book Rating : 4.1/5 (282 download)
Download or read book Nanofluids for Heat and Mass Transfer written by Bharat Bhanvase and published by Academic Press. This book was released on 2021-04-29 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanofluids for Heat and Mass Transfer: Fundamentals, Sustainable Manufacturing and Applications presents the latest on the performance of nanofluids in heat transfer systems. Dr. Bharat Bhanvase investigates characterization techniques and the various properties of nanofluids to analyze their efficiency and abilities in a variety of settings. The book moves through a presentation of the fundamentals of synthesis and nanofluid characterization to various properties and applications. Aimed at academics and researchers focused on heat transfer in energy and engineering disciplines, this book considers sustainable manufacturing processes within newer energy harvesting technologies to serve as an authoritative and well-rounded reference. Highlights the major elements of nanofluids as an energy harvesting fluid, including their preparation methods, characterization techniques, properties and applications Includes valuable findings and insights from numerical and computational studies Provides nanofluid researchers with research inspiration to discover new applications and further develop technologies
Author : R. Mohan Sankaran
Publisher : CRC Press
ISBN 13 : 1351832948
Total Pages : 433 pages
Book Rating : 4.3/5 (518 download)
Download or read book Plasma Processing of Nanomaterials written by R. Mohan Sankaran and published by CRC Press. This book was released on 2017-12-19 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: We are at a critical evolutionary juncture in the research and development of low-temperature plasmas, which have become essential to synthesizing and processing vital nanoscale materials. More and more industries are increasingly dependent on plasma technology to develop integrated small-scale devices, but physical limits to growth, and other challenges, threaten progress. Plasma Processing of Nanomaterials is an in-depth guide to the art and science of plasma-based chemical processes used to synthesize, process, and modify various classes of nanoscale materials such as nanoparticles, carbon nanotubes, and semiconductor nanowires. Plasma technology enables a wide range of academic and industrial applications in fields including electronics, textiles, automotives, aerospace, and biomedical. A prime example is the semiconductor industry, in which engineers revolutionized microelectronics by using plasmas to deposit and etch thin films and fabricate integrated circuits. An overview of progress and future potential in plasma processing, this reference illustrates key experimental and theoretical aspects by presenting practical examples of: Nanoscale etching/deposition of thin films Catalytic growth of carbon nanotubes and semiconductor nanowires Silicon nanoparticle synthesis Functionalization of carbon nanotubes Self-organized nanostructures Significant advances are expected in nanoelectronics, photovoltaics, and other emerging fields as plasma technology is further optimized to improve the implementation of nanomaterials with well-defined size, shape, and composition. Moving away from the usual focus on wet techniques embraced in chemistry and physics, the author sheds light on pivotal breakthroughs being made by the smaller plasma community. Written for a diverse audience working in fields ranging from nanoelectronics and energy sensors to catalysis and nanomedicine, this resource will help readers improve development and application of nanomaterials in their own work. About the Author: R. Mohan Sankaran received the American Vacuum Society’s 2011 Peter Mark Memorial Award for his outstanding contributions to tandem plasma synthesis.
Author : Lanbo Di
Publisher : MDPI
ISBN 13 : 3039286544
Total Pages : 234 pages
Book Rating : 4.0/5 (392 download)
Download or read book Plasma for Energy and Catalytic Nanomaterials written by Lanbo Di and published by MDPI. This book was released on 2020-12-29 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Special Issue “Plasma for Energy and Catalytic Nanomaterials” highlights the recent progress and advancements in the synthesis and applications of energy and catalytic nanomaterials by plasma. Compared with conventional preparation methods, plasma provides a fast, facile, and environmentally friendly method for synthesizing highly efficient nanomaterials. The synthesized nanomaterials generally show enhanced metal–support interactions, small-sized metal nanoparticles, specific metal structures, and abundant oxygen vacancies. The plasma method allows thermodynamically and dynamically difficult reactions to proceed at low temperatures due to the activation of energetic electrons. Despite the growing interest in plasma for energy and catalytic nanomaterials, the synthesis mechanisms of nanomaterials using plasma still remain obscure due to the complicated physical and chemical reactions that occur during plasma preparation. The Guest Editors and the MDPI staff are therefore pleased to offer this Special Issue to interested reader, including graduate and Ph.D. students, postdoctoral researchers, and the entire community interested in the field of nanomaterials. We share the conviction that the Issue can serve as a useful tool for updating the literature and to aid with the conception of new production and/or research programs. Further dedicated R&D advances are possible based on new instruments and materials under development.
Author : Farah Nazih Radwan
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (667 download)
Download or read book Synthesis, Functionalization and Characterization of Dual Mode Nanoparticles for Biomedical Applications written by Farah Nazih Radwan and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Three different approaches were used to prepare dual mode nanoparticles using a previously described reverse micelle technique. Superparamagnetic Fe@FeOx core shell nanoparticles were chosen to be the magnetic component for all three dual mode systems. In the first type of particles, 2- amino-1,3- propane diol (APD) was used as a functionalization ligand to stabilize the surface of the particles and its functional amino group also provided a binding site for the attachment of a fluorescent probe. The TEM analysis showed that the APD coated particles have a size range of 8-13 nm while XPS and MALDI measurements confirmed the presence of the APD ligand on the surface of the particles. The VSM data showed that the magnetization of the unfuntionalized particles was 60 emu/g and after functionalization the magnetization became 33 emu/g. The slight reduction magnetization was a result of the organic surface coating of APD. At this point, we realized that attaching a bulky organic fluorescent probe will cause the particles' magnetization to further decrease. Therefore, our attention was directed towards inorganic semiconductors nanoparticles to be used as the optical component of the dual mode particles. The second approach included replacing the FeOx shell around the metallic iron core with a quantum dots shell (QDs). Thioglycerol was used to stabilize the surface of the synthesized CdS particles. The diffraction pattern of the produced particles was in agreement with the reference patterns of both alpha iron and CdS hexagonal crystal lattice, as illustrated by the XRD measurements. The TEM images of the coated particles revealed core shell morphology before the addition of thioglycerol and the particles were aggregated. After thioglycerol was added, the particles became more isolated with an approximate size of 14 nm. Optical measurements of the coated particles showed an emission peak at 670 nm using an absorbance peak of 335 nm. XPS scans verified the presence of CdS shell on the surface of the iron particles. The magnetization of the coated particles was 22 emu/ g, which is lower than that of the APD coated particles. Although, the optical properties of the dual mode system were enhanced, the magnetization was reduced. This leads to our third approach in preparing the dual mode system, we used organometallic Prussian blue compound as our optical probe. Similar to the XRD data of the CdS@Fe nanoparticles, the core consists of metallic iron for PB@Fe nanoparticles. The TEM images showed core shell morphology and approximate size of 11 nm. The attachment of PB ligand on the surface of the particles was verified using XPS and the magnetic data revealed that PB@Fe nanoparticles has the highest magnetization value of 80 emu/ g and it's the highest in comparison to the previous two system. In conclusion, we have taken three approaches to develop magnetic and optical dual mode nanoparticles. Each system has its advantages and limitations. For instance, CdS nanoparticles have the most enhanced optical properties but the lowest magnetization. On the other hand PB@Fe has the highest magnetization saturation but not the optimal optical properties. Future work includes the improvement of both the magnetic and optical properties of these systems.
Author : Hossam A. Kishawy
Publisher : Springer
ISBN 13 : 3319959662
Total Pages : 253 pages
Book Rating : 4.3/5 (199 download)
Download or read book Machining Difficult-to-Cut Materials written by Hossam A. Kishawy and published by Springer. This book was released on 2018-08-09 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focus on the challenges faced by cutting materials with superior mechanical and chemical characteristics, such as hardened steels, titanium alloys, super alloys, ceramics and metal matrix composites. Aspects such as costs and appropriate machining strategy are mentioned. The authors present the characteristics of the materials difficult to cut and comment on appropriate cutting tools for their machining. This book also serves as a reference tool for manufacturers working in industry.
Author : Sophie Laurent
Publisher : Elsevier
ISBN 13 : 0081012756
Total Pages : 336 pages
Book Rating : 4.0/5 (81 download)
Download or read book Iron Oxide Nanoparticles for Biomedical Applications written by Sophie Laurent and published by Elsevier. This book was released on 2017-10-20 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Iron Oxide Nanoparticles for Biomedical Applications: Synthesis, Functionalization and Application begins with several chapters covering the synthesis, stabilization, physico-chemical characterization and functionalization of iron oxide nanoparticles. The second part of the book outlines the various biomedical imaging applications that currently take advantage of the magnetic properties of iron oxide nanoparticles. Brief attention is given to potential iron oxide based therapies, while the final chapter covers nanocytotoxicity, which is a key concern wherever exposure to nanomaterials might occur. This comprehensive book is an essential reference for all those academics and professionals who require thorough knowledge of recent and future developments in the role of iron oxide nanoparticles in biomedicine. Unlocks the potential of iron oxide nanoparticles to transform diagnostic imaging techniques Contains full coverage of new developments and recent research, making this essential reading for researchers and engineers alike Explains the synthesis, processing and characterization of iron oxide nanoparticles with a view to their use in biomedicine
Author : Vineet Kumar
Publisher : CRC Press
ISBN 13 : 1351021362
Total Pages : 370 pages
Book Rating : 4.3/5 (51 download)
Download or read book Functionalized Nanomaterials II written by Vineet Kumar and published by CRC Press. This book was released on 2021-04-06 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: The functionalization of nanomaterials provides them with some unique properties, making the same nanomaterial amenable for various applications by simply manipulating functional components. However, functionalized nanomaterials also face some challenges, along with some encouraging new applications in the future. This book provides a detailed account of applications of the functionalization of nanomaterials. This book can serve as a reference book for scientific investigators, including doctoral and post-doctoral scholars and undergraduate and graduate students, in context with the scope of applications of functionalized nanomaterials. It also highlights recent advances, challenges, and opportunities in the application of nanomaterials. This book will provide critical and comparative data for nanotechnologists. It may also be beneficial for multidisciplinary researchers, industry personnel, journalists, policy makers, and the common public to understand the scope of functionalized nanomaterials in detail and in depth. Features: This book covers various applications of functionalized nanomaterials. It discusses recent global research trends and future applications of functionalized nanomaterials. It highlights the need for more rigorous regulatory frameworks for the safe use of functionalized nanomaterials. It contains contributions from international experts and will be a valuable resource for researchers.
Author : Franklin Tao
Publisher : Royal Society of Chemistry
ISBN 13 : 1782621032
Total Pages : 285 pages
Book Rating : 4.7/5 (826 download)
Download or read book Metal Nanoparticles for Catalysis written by Franklin Tao and published by Royal Society of Chemistry. This book was released on 2014-06-12 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: Catalysis is a central topic in chemical transformation and energy conversion. Thanks to the spectacular achievements of colloidal chemistry and the synthesis of nanomaterials over the last two decades, there have also been significant advances in nanoparticle catalysis. Catalysis on different metal nanostructures with well-defined structures and composition has been extensively studied. Metal nanocrystals synthesized with colloidal chemistry exhibit different catalytic performances in contrast to metal nanoparticles prepared with impregnation or deposition precipitation. Additionally, theoretical approaches in predicting catalysis performance and understanding catalytic mechanism on these metal nanocatalysts have made significant progress. Metal Nanoparticles for Catalysis is a comprehensive text on catalysis on Nanoparticles, looking at both their synthesis and applications. Chapter topics include nanoreactor catalysis; Pd nanoparticles in C-C coupling reactions; metal salt-based gold nanocatalysts; theoretical insights into metal nanocatalysts; and nanoparticle mediated clock reaction. This book bridges the gap between nanomaterials synthesis and characterization, and catalysis. As such, this text will be a valuable resource for postgraduate students and researchers in these exciting fields.
Author : Oleg O. Baranov
Publisher : Morgan & Claypool Publishers
ISBN 13 : 1681739119
Total Pages : 92 pages
Book Rating : 4.6/5 (817 download)
Download or read book Advanced Concepts and Architectures for Plasma-Enabled Material Processing written by Oleg O. Baranov and published by Morgan & Claypool Publishers. This book was released on 2020-09-30 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasma-based techniques are widely and successfully used across the field of materials processing, advanced nanosynthesis, and nanofabrication. The diversity of currently available processing architectures based on or enhanced by the use of plasmas is vast, and one can easily get lost in the opportunities presented by each of these configurations. This mini-book provides a concise outline of the most important concepts and architectures in plasma-assisted processing of materials, helping the reader navigate through the fundamentals of plasma system selection and optimization. Architectures discussed in this book range from the relatively simple, user-friendly types of plasmas produced using direct current, radio-frequency, microwave, and arc systems, to more sophisticated advanced systems based on incorporating and external substrate architectures, and complex control mechanisms of configured magnetic fields and distributed plasma sources.
Author : Lanbo Di
Publisher :
ISBN 13 : 9783039286553
Total Pages : 234 pages
Book Rating : 4.2/5 (865 download)
Download or read book Plasma for Energy and Catalytic Nanomaterials written by Lanbo Di and published by . This book was released on 2020 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Special Issue “Plasma for Energy and Catalytic Nanomaterials” highlights the recent progress and advancements in the synthesis and applications of energy and catalytic nanomaterials by plasma. Compared with conventional preparation methods, plasma provides a fast, facile, and environmentally friendly method for synthesizing highly efficient nanomaterials. The synthesized nanomaterials generally show enhanced metal-support interactions, small-sized metal nanoparticles, specific metal structures, and abundant oxygen vacancies. The plasma method allows thermodynamically and dynamically difficult reactions to proceed at low temperatures due to the activation of energetic electrons. Despite the growing interest in plasma for energy and catalytic nanomaterials, the synthesis mechanisms of nanomaterials using plasma still remain obscure due to the complicated physical and chemical reactions that occur during plasma preparation. The Guest Editors and the MDPI staff are therefore pleased to offer this Special Issue to interested reader, including graduate and Ph.D. students, postdoctoral researchers, and the entire community interested in the field of nanomaterials. We share the conviction that the Issue can serve as a useful tool for updating the literature and to aid with the conception of new production and/or research programs. Further dedicated R&D advances are possible based on new instruments and materials under development.
Author : American Chemical Society. Meeting
Publisher :
ISBN 13 :
Total Pages : 474 pages
Book Rating : 4.3/5 (91 download)
Download or read book Nanoparticles written by American Chemical Society. Meeting and published by . This book was released on 2008 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book summarizes recent advances in methods to synthesize, stabilize, passivate and functionalize diverse nanoparticles from metals, metal oxides, semiconductors, polymers, organics and biomolecules. A wide range of potential appplications with nanoparticles as building blocks are described.
Author : Ganesh Balasubramanian
Publisher : Springer
ISBN 13 : 3319647172
Total Pages : 182 pages
Book Rating : 4.3/5 (196 download)
Download or read book Advances in Nanomaterials written by Ganesh Balasubramanian and published by Springer. This book was released on 2017-10-19 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This exploratory textbook starts with fundamentals that satisfy the needs of a diverse group of educators, researchers and students aspiring to engage in research and engineering of nanomaterials. It bridges the gap between undergraduate students in science and engineering who have not yet chosen a specific career path, graduate students still considering different disciplines and the cross-cutting scientific topics in nanomaterials. It extends to methods of common practice in the field, spanning experimental, and theoretical techniques. The extensive use of nanomaterials, such as carbon nanotubes, in the future of global technological solutions underscores the relevance of this text aimed at students and researchers with a range of interests. “Advances in Nanomaterials: Fundamentals, Properties and Applications,” is ideal for senior undergraduate and graduate students, faculty and general science enthusiasts interested in nanomaterials across contexts ranging from solar energy, structural engineering, to medical devices, to semiconductors.
