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Synthesis of Nanostructured Materials in Near and/or Supercritical Fluids

Synthesis of Nanostructured Materials in Near and/or Supercritical Fluids
  • Author : Can Erkey,Michael Türk
  • Publisher :Unknown
  • Release Date :2021-03-15
  • Total pages :210
  • ISBN : 0444640894
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Summary : Synthesis of Nanostructured Materials in Near and/or Supercritical Fluids: Methods, Fundamentals and Modeling covers the synthesis of nanostructured materials using supercritical fluid-based processes. The interesting properties of supercritical fluids enable the tailoring of the nanostructure which is not possible using other technologies, and which results in the creation of novel nanostructured materials with superior properties. The book covers fundamental aspects such as high-pressure phase behaviour of complex mixtures, thermodynamics and kinetics of adsorption from supercritical solutions, mechanisms of particle formation phenomena in supercritical fluid-based processes, and models for further development. It bridges the gap between theory and application, and is a valuable resource for scientists, researchers, and students alike. The book offers a comprehensive review of the current status of research and development and provides insights on promising future directions. Includes thermodynamic and mass transfer data necessary for industrial plant design Explains the mechanisms of reactions in a supercritical fluid environment Lists numerous industrial processes for the production of many consumer products

Supercritical Fluids and Organometallic Compounds

Supercritical Fluids and Organometallic Compounds
  • Author : Can Erkey
  • Publisher :Unknown
  • Release Date :2011
  • Total pages :233
  • ISBN : 9780080453293
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Summary : Organometallic compounds are utilized as reagents in the preparation and processing of advanced nanostructured materials, as catalysts in the production of a wide variety of specialty chemicals and polymers, and as drugs. Supercritical fluid science and technology has a wide variety of applications ranging from extraction of pharmaceutically active compounds to the synthesis of advanced materials. The combination of organometallic chemistry and supercritical fluids has significant potential. This book covers the fundamental aspects and related applications in this rapidly growing area. Covers the preparation of nanostructured composite materials using supercritical fluids Focuses on the intersection of organometallic chemistry and supercritical fluids Addresses the behavior of organometallic compounds in supercritical fluid environments

Supercritical Fluid Nanotechnology

Supercritical Fluid Nanotechnology
  • Author : Concepcion Domingo Pascual,Pascale Subra-Paternault
  • Publisher :Unknown
  • Release Date :2015-10-22
  • Total pages :566
  • ISBN : 9789814613415
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Summary : The environmental and climate program demands technological solutions in the chemical industry that incorporate prevention of pollution. Major advances are needed to reduce the use of organic solvents, such as methanol, toluene, xylene, methyl ethyl ketone, and dichloromethane, which account for 27 percent of total toxics release inventory chemical

Supercritical Fluid Technology in Materials Science and Engineering

Supercritical Fluid Technology in Materials Science and Engineering
  • Author : Ya-Ping Sun
  • Publisher :Unknown
  • Release Date :2002-03-26
  • Total pages :600
  • ISBN : 9780824744717
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Summary : This title analyzes the chemical reactions, structures and fundamental properties of supercritical fluid systems for the production of new compounds, nanomaterials, fibers, and films. It complies contemporary research and technological advances for increased selectivity and reduced waste in chemical, industrial, pharmaceutical, and biomedical applications. Topics include fluid dynamics, catalysis, hydrothermal synthesis, surfactants, conducting polymers, crystal growth, and other aspects and applications of supercritical fluids.

Supercritical Fluids and Organometallic Compounds

Supercritical Fluids and Organometallic Compounds
  • Author : Can Erkey
  • Publisher :Unknown
  • Release Date :2011-10-27
  • Total pages :248
  • ISBN : 9780080914480
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Summary : Organometallic compounds are utilized as reagents in the preparation and processing of advanced nanostructured materials, as catalysts in the production of a wide variety of specialty chemicals and polymers, and as drugs. Supercritical fluid science and technology has a wide variety of applications ranging from extraction of pharmaceutically active compounds to the synthesis of advanced materials. The combination of organometallic chemistry and supercritical fluids has significant potential. This book covers the fundamental aspects and related applications in this rapidly growing area. Covers the preparation of nanostructured composite materials using supercritical fluids Focuses on the intersection of organometallic chemistry and supercritical fluids Addresses the behavior of organometallic compounds in supercritical fluid environments

Supercritical Fluid Technology for Energy and Environmental Applications

Supercritical Fluid Technology for Energy and Environmental Applications
  • Author : Vladimir Anikeev,Maohong Fan I
  • Publisher :Unknown
  • Release Date :2013-12-21
  • Total pages :284
  • ISBN : 9780444626974
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Summary : Supercritical Fluid Technology for Energy and Environmental Applications covers the fundamental principles involved in the preparation and characterization of supercritical fluids (SCFs) used in the energy production and other environmental applications. Energy production from diversified resources — including renewable materials — using clean processes can be accomplished using technologies like SCFs. This book is focused on critical issues scientists and engineers face in applying SCFs to energy production and environmental protection, the innovative solutions they have found, and the challenges they need to overcome. The book also covers the basics of sub- and supercritical fluids, like the thermodynamics of phase and chemical equilibria, mathematical modeling, and process calculations. A supercritical fluid is any substance at a temperature and pressure above its critical point where distinct liquid and gas phases do not exist. At this state the compound demonstrates unique properties, which can be "fine-tuned," making them suitable as organic solvents in a range of industrial and laboratory processes. This volume enables readers to select the most appropriate medium for a specific situation. It helps instructors prepare course material for graduate and postgraduate courses in the area of chemistry, chemical engineering, and environmental engineering. And it helps professional engineers learn supercritical fluid-based technologies and use them in solving the increasingly challenging environmental issues. Relates theory, chemical characteristics, and properties of the particular supercritical fluid to its various applications Covers the fundamentals of supercritical fluids, like thermodynamics of phase and chemical equilibria, mathematical modeling, and process calculations Includes the most recent applications of supercritical fluids, including energy generation, materials synthesis, and environmental protection

Supercritical and Other High-pressure Solvent Systems

Supercritical and Other High-pressure Solvent Systems
  • Author : Andrew J Hunt,Thomas M Attard
  • Publisher :Unknown
  • Release Date :2018-08-24
  • Total pages :678
  • ISBN : 9781788015189
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Summary : Exploring the range and utility of high-pressure solvent systems across a variety of different chemical applications, this book brings together recent advances in supercritical technology and other pressurised-solvent systems. It provides an in-depth overview of the latest advances and developments and discusses the limitations and drawbacks that need to be addressed. Wherever possible, the greenness and economic viability of the different solvent systems is highlighted. This book is ideal for researchers and industrialists working in environmental science, green chemistry and biorefineries.

Synthesis of Nanostructured Materials by Etching in Supercritical Carbon Dioxide

Synthesis of Nanostructured Materials by Etching in Supercritical Carbon Dioxide
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2009
  • Total pages :228
  • ISBN : OCLC:659752039
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Summary : Supercritical CO2(scCO2) is emerging as a viable and environmentally sustainable platform for nanomaterials synthesis due to its tunable solvent properties combined with low surface tension and viscosity, which allow rapid, non-destructive wetting within small features. However, to advance the utility of this fluid, a more thorough understanding of surface chemistry at high pressures is needed. In this study, the behavior of reactive solids in scCO2was examined by etching thin dielectric, metal, and alloy films to determine the fundamental mechanisms controlling the reactions. Models were developed to describe the etching processes and to benchmark scCO2with conventional methods. Dielectric SiOxNyfilms were etched with an HF/pyridine complex dissolved in scCO2. The anhydrous etching process resulted in formation of a residual (NH4)2SiF6layer that limited transport of reactants to the film and caused a drop in reaction order. Partial removal of the salt was accomplished by sublimation under vacuum. Etching of thin CuO films with hexafluoroacetylacetone (hfacH) in scCO2was studied and found to occur via a 3-step Langmuir-Hinshelwood reaction sequence. The kinetic model showed that lower scCO2densities favored hfacH adsorption on the CuO surface and that scCO2solvation forces lowered the activation barrier for the rate-limiting step. Adding up to 10 & times the molar ratio of pure H2O to hfacH nearly doubled theetching rate through formation of a hydrogen-bonded hfacH complex. Both bulk and thin film AgCu alloys were selectively etched in scCO2to generatenanoporous Ag structures. As Cu was preferentially removed through selective oxidation and chelation, the Ag atoms conglomerated into successively larger clusters similar to mechanisms reported in aqueous phase dealloying. Supercritical dealloying was observed at Cu compositions below typical parting limits, suggesting enhanced fluid transport in the evolving pores. When using in situ oxidation, the etching reaction was limited by decomposition of H2O2. Inverse space image analysis of samples with initial phase domain sizes between 250 - 1000 nm showed that below a threshold of approximately 500 nm, the dealloyed feature size mimicked the starting microstructure. Larger phase domains prohibited surface diffusion of Ag between phases producing a mixture of large and small Ag nanostructures.

Nanomaterials in Catalysis

Nanomaterials in Catalysis
  • Author : Philippe Serp,Karine Philippot
  • Publisher :Unknown
  • Release Date :2012-11-15
  • Total pages :516
  • ISBN : 9783527656899
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Summary : Nanocatalysis has emerged as a field at the interface between homogeneous and heterogeneous catalysis and offers unique solutions to the demanding requirements for catalyst improvement. Heterogeneous catalysis represents one of the oldest commercial applications of nanoscience and nanoparticles of metals, semiconductors, oxides, and other compounds have been widely used for important chemical reactions. The main focus of this fi eld is the development of well-defined catalysts, which may include both metal nanoparticles and a nanomaterial as the support. These nanocatalysts should display the benefits of both homogenous and heterogeneous catalysts, such as high efficiency and selectivity, stability and easy recovery/recycling. The concept of nanocatalysis is outlined in this book and, in particular, it provides a comprehensive overview of the science of colloidal nanoparticles. A broad range of topics, from the fundamentals to applications in catalysis, are covered, without excluding micelles, nanoparticles in ionic liquids, dendrimers, nanotubes, and nanooxides, as well as modeling, and the characterization of nanocatalysts, making it an indispensable reference for both researchers at universities and professionals in industry.

Applications of Laser Ablation

Applications of Laser Ablation
  • Author : Dongfang Yang
  • Publisher :Unknown
  • Release Date :2016-12-21
  • Total pages :428
  • ISBN : 9789535128113
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Summary : Laser ablation refers to the phenomenon in which a low wavelength and short pulse (ns-fs) duration of laser beam irradiates the surface of a target to induce instant local vaporization of the target material generating a plasma plume consisting of photons, electrons, ions, atoms, molecules, clusters, and liquid or solid particles. This book covers various aspects of using laser ablation phenomenon for material processing including laser ablation applied for the deposition of thin films, for the synthesis of nanomaterials, and for the chemical compositional analysis and surface modification of materials. Through the 18 chapters written by experts from international scientific community, the reader will have access to the most recent research and development findings on laser ablation through original research studies and literature reviews.

Nanomaterials for CO2 Capture, Storage, Conversion and Utilization

Nanomaterials for CO2 Capture, Storage, Conversion and Utilization
  • Author : Phuong Nguyen Tri,Haobin Wu,Tuan Anh Nguyen,Simon Barnabe,Pierre Benard
  • Publisher :Unknown
  • Release Date :2021-04-15
  • Total pages :394
  • ISBN : 9780128230848
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Summary : The gradual increase of population and the consequential rise in the energy demands in recent years have led to the widespread use of fossil fuels. CO2 transformation by various processes is considered as a promising alternative technology. This book sets out the fundaments of how nanomaterials are being used for this purpose. Nanomaterials for CO2 Capture, Storage, Conversion and Utilization summarizes the research, development and innovations in the capture, storage, transformation and utilization of CO2 into useful products and raw chemicals for industry. This is achieved by using advanced processes such as CO2 reforming, bi-reforming and tri-reforming of hydrocarbons or biomass derivatives; homogeneous and heterogeneous hydrogenation; photochemical reduction; photoelectrochemical reduction; electrochemical reduction; biochemical reduction; supercritical CO2 technology; advanced catalyst synthesis for CO2 conversion; organic carbonates for polymers synthesis from CO2, and CO2 capture and sequestration. The systematic and updated reviews on the mentioned sectors, especially on the use of nanotechnology for the transformation of CO2 is scarce in the literature. Thus, the book addresses the recent knowledge gaps and potential solutions of the storage, utilization and transformation of CO2 as well as its promising applications. This is an important reference source for materials scientists, engineers and energy scientists who want to understand how nanotechnology is helping us to solve some of the world’s major energy problems. Shows how nanomaterials are being used to create more efficient CO2 capture, storage and conversation systems Outlines the major nanomaterials-based techniques to create such systems Assesses the major challenges in using nanomaterials for energy capture, storage and conversion

Contributions to Science

Contributions to Science
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2005
  • Total pages :229
  • ISBN : UIUC:30112083915311
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Summary :

Nanomaterials and Nanochemistry

Nanomaterials and Nanochemistry
  • Author : C. Bréchignac,P. Houdy,M. Lahmani
  • Publisher :Unknown
  • Release Date :2008-01-01
  • Total pages :747
  • ISBN : 3540729933
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Summary : Here is a brilliant book that covers the major aspects of nanomaterials production. It integrates the many and varied chemical, material and thermo-dynamical facets of production, offering readers a new and unique approach to the subject. The mechanical, optical, and magnetic characteristics of nanomaterials are also presented in detail. Nanomaterials are a fast developing field of research and this book serves as both a reference work for researchers and a textbook for graduate students.

Directory of Graduate Research

Directory of Graduate Research
  • Author : American Chemical Society. Committee on Professional Training
  • Publisher :Unknown
  • Release Date :2005
  • Total pages :229
  • ISBN : UCSD:31822036045805
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Summary : Faculties, publications and doctoral theses in departments or divisions of chemistry, chemical engineering, biochemistry and pharmaceutical and/or medicinal chemistry at universities in the United States and Canada.

Nanostructured Materials

Nanostructured Materials
  • Author : Philippe Knauth,Joop Schoonman
  • Publisher :Unknown
  • Release Date :2006-04-11
  • Total pages :188
  • ISBN : 9780306477225
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Summary : Nanostructured Materials: Selected Synthesis Methods, Properties and Applications presents several important recent advances in synthesis methods for nanostructured materials and processing of nano-objects into macroscopic samples, such as nanocrystalline ceramics. This book will not cover the whole spectrum of possible synthesis techniques, which would be limitless, but it presents especially interesting highlights in the domains of research of the editors. Subjects that are covered include the following: *"chimie douce" approaches for preparation of a large variety of nanostructured materials, including metals, alloys, semiconductors and oxides; *hydrothermal synthesis with water as solvent and reaction medium can be specifically adapted to nanostructured materials; *"electrospraying" as a powerful new route for the preparation of nanoparticles, especially of oxides for electroceramics; *nanoparticles processed into nanostructured ceramics, by using dynamic compaction techniques; *applications of nanostructured materials. This book complements the previous volume in this series (P. Knauth, J. Schoonman, eds., Nanocrystalline Metals and Oxides: Selected Properties and Applications, Kluwer, Boston, 2002).

Chemistry and Industry

Chemistry and Industry
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2007
  • Total pages :229
  • ISBN : UCSD:31822036033876
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Summary :

Nanobiotechnology

Nanobiotechnology
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2012-06-28
  • Total pages :538
  • ISBN : 9780123983046
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Summary : Nanotechnology is considered the next big revolution in medicine and biology. For the past 20 years, research groups have been involved in the development of new applications of novel nanomaterials for biotechnological applications. Nanomaterials are also becoming increasingly important in medical applications, with new drugs and diagnostic tools based on nanotechnology. Every year, hundreds of new ideas using nanomaterials are applied in the development of biosensors. An increasing number of new enterprises are also searching for market opportunities using these technologies. Nanomaterials for biotechnological applications is a very complex field. Thousands of different nanoparticles could potentially be used for these purposes. Some of them are very different; their synthesis, characterization and potentiality are very diverse. This book aims to establish a route guide for non-erudite researchers in the field, showing the advantages and disadvantages of the different kind of nanomaterials. Particular attention is given to the differences, advantages and disadvantages of inorganic nanoparticles versus organic nanoparticles when used for biotechnological applications. A tutorial introduction provides the basis for understanding the subsequent specialized chapters. Provides an overview of the main advantages and disadvantages of the use of organic and inorganic nanoparticles for use in biotechnology and nanomedicine Provides an excellent starting point for research groups looking for solutions in nanotechnology who do not know which kind of materials will best suit their needs Includes a tutorial introduction that provides a basis for understanding the subsequent specialized chapters

Advances in Nanostructured Materials for Multifunctional Applications: Synthesis, Characterization and Properties

Advances in Nanostructured Materials for Multifunctional Applications: Synthesis, Characterization and Properties
  • Author : Luz Stella Gomez-Villalba
  • Publisher :Unknown
  • Release Date :2019-01-25
  • Total pages :168
  • ISBN : 9783035733204
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Summary : This volume presents the recent research progress in the synthesis, characterization techniques, properties and interactions of nanostructured materials for multifunctional applications. The opportunity to apply singular or hybrid nanomaterials proves to be a constant challenge in order to optimize its use, achieving simultaneous results for its application in different branches of research. It is focused on the study of structures and their effect on the properties of solids, using different experimental techniques and practical applications of nanostructured materials in the context of the latest achievements in the area of research of solid-state phenomena.

Nanocomposite Materials

Nanocomposite Materials
  • Author : Jyotishkumar Parameswaranpillai,Nishar Hameed,Thomas Kurian,Yingfeng Yu
  • Publisher :Unknown
  • Release Date :2016-09-19
  • Total pages :324
  • ISBN : 9781315355078
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Summary : This book provides a comprehensive collection of the latest information on nanomaterials and nanocomposites. It covers material synthesis, processing, structure characterization, properties and applications. It presents a coherent treatment of how composite properties depend on nanostructure, and covers cutting-edge topics like bionanocomposites for sustainable development. This book summarizes many developments in the field making it an ideal resource for researchers from industry, academia, government and private research institutions.

Bulletin of the Korean Chemical Society

Bulletin of the Korean Chemical Society
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2009
  • Total pages :229
  • ISBN : UOM:39015081656707
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Summary :

Green Sustainable Process for Chemical and Environmental Engineering and Science

Green Sustainable Process for Chemical and Environmental Engineering and Science
  • Author : Dr. Inamuddin,Rajender Boddula,Mohd Imran Ahamed,Abdullah M. Asiri
  • Publisher :Unknown
  • Release Date :2020-12-01
  • Total pages :374
  • ISBN : 9780128218990
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Summary : Green Sustainable Process for Chemical and Environmental Engineering and Science: Solvents for the Pharmaceutical Industry aims at providing a detailed overview of applications of green solvents in pharmaceutical industries. It also focuses on providing a detailed literature survey on the green solvents for pharmaceutical analysis, drug design, synthesis, and production, etc. It summarizes the applications of various greens solvents such as water, cyrene, vegetable oils, ionic liquids, ethyl lactate, eutectic solvents, and glycerol in contrast to toxic solvents. This book provides an overview of the use of green solvents for the sustainable and environmentally friendly development of synthetic methodologies for biomedical and pharmaceutical industries. Up-to-date developments towards the development of solvents for pharmaceutical industry Includes latest advances in pharmaceutical analysis and synthesis using green solvents Outlines eco-friendly green solvents for medicinal applications State-of-the-art overview on the exploration of green solvents for pharmaceutical industries