Download or read book From Microporous to Mesoporous Manganese Oxide Crystalline Phases written by Zheng-Rong Tian and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Micro and Mesoporous Mineral Phases written by Giovanni Ferraris and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-12-17 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 57 of Reviews in Mineralogy and Geochemistry highlights the present knowledge on micro- and mesoporous mineral phases, with focus on their crystal-chemical aspects, occurrence and porous activity in nature and experiments. As zeolites are the matter of numerous ad hoc meetings and books - including two volumes in this series - they do not specifically appear in the present volume. The phases of the sodalite and cancrinite-davyne groups, which mineralogists consider distinct from zeolites, are instead considered (in the order, chapter 7 by W. Depmeier and part of chapter 8 by E. Bonaccorsi and S. Merlino, respectively).
Download or read book Handbook of Layered Materials written by Scott M. Auerbach and published by CRC Press. This book was released on 2004-03-23 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focusing on layered compounds at the core of materials intercalation chemistry, this reference comprehensively explores clays and other classes of materials exhibiting the ability to pillar, or establish permanent intracrystalline porosity within layers. It offers an authoritative presentation of their fundamental properties as well as summaries of
Download or read book Characterisation of Porous Solids V written by G. Kreysa and published by Elsevier. This book was released on 2000-04-11 with total page 699 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Fifth International Symposium on the Characterisation of Porous Solids (COPS-V) was held at Heidelberg, Germany, from May 30 to June 2, 1999. About 220 participants from 25 countries enjoyed a very successful meeting with 32 lectures and 155 poster presentations. The Symposium started with a highly stimulating lecture by Sir John Meurig Thomas, Cambridge, highlighting the recent developments in engineering of new catalysts. The following two full sessions were devoted to theory, modelling and simulation which provide the basis for the interpretation of pore structural data of adsorbents and finely dispersed solids. Sessions 2 and 3 focused on the advances in the synthesis and characterisation of highly ordered inorganic adsorbents and carbons. Sessions 4 and 5 addressed important questions with respect to the characterisation of porous solids by sorption measurement and other related techniques. The intensive three-day programme provided a stimulating forum for the exchange of novel research findings, concepts, techniques and materials which are collected in this volume.
Download or read book Nanomaterials for Supercapacitors written by Ling Bing Kong and published by CRC Press. This book was released on 2017-11-22 with total page 527 pages. Available in PDF, EPUB and Kindle. Book excerpt: New materials hold the key to fundamental advances in energy conversion and storage, both of which are vital in order to meet the challenge of global warming and the finite nature of fossil fuels. Nanomaterials in particular offer unique properties or combinations of properties as electrodes and electrolytes in a range of energy devices. Supercapacitors have been widely acknowledged to be promising devices for energy storage. This book describes the latest progress in the discovery and development of nanoelectrolytes and nanoelectrodes for supercapacitor applications.
Download or read book Nanoelectrochemistry written by Michael V. Mirkin and published by CRC Press. This book was released on 2015-03-27 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanoscale electrochemistry has revolutionized electrochemical research and technologies and has impacted other fields, including nanotechnology and nanoscience, biology, and materials chemistry. This book examines well-established concepts and principles and provides an updated overview of the field and its applications. The first two chapters contain theoretical background, specifically, theories of electron transfer, transport, and double-layer processes at nanoscale electrochemical interfaces. The next chapters examine the electrochemical studies of nanomaterials and nanosystems, as well as the applications of nanoelectrochemical techniques. Each chapter can be read independently, providing readers with a compact, up-to-date review of th
Download or read book Nanocasting written by An-Hui Lu and published by Royal Society of Chemistry. This book was released on 2010 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanostructured materials with tailored properties are regarded as a fundamental element in the development of future science and technology. Research is still ongoing into the nanosized construction elements required to create functional solids. The recently developed technique, nanocasting, has great advantage over others in terms of the synthesis of special nanostructured materials by the careful choice of suitable elements and nanoengineering steps. This new book summarizes the recent developments in nanocasting, including the principles of nanocasting, syntheses of novel nanostructured materials, characterization methods, detailed synthetic recipes and further possible development in this area. The book focuses on the synthesis of porous solids from the viewpoint of methodology and introduces the science of nanocasting from fundamental principles to their use in synthesis of various materials. It starts by outlining the principles of nanocasting, requirements to the templates and precursors and the tools needed to probe matter at the nanoscale level. It describes how to synthesize nano structured porous solids with defined characteristics and finally discusses the functionalization and application of porous solids. Special attention is given to new developments in this field and future perspectives. A useful appendix covering the detailed synthetic recipes of various templates including porous silica, porous carbon and colloidal spheres is included which will be invaluable to researchers wanting to follow and reproduce nanocast materials. Topics covered in the book include: * inorganic chemistry * organic chemistry * solution chemistry * sol-gel and interface science * acid-base equilibria * electrochemistry * biochemistry * confined synthesis The book gives readers not only an overview of nanocasting technology, but also sufficient information and knowledge for those wanting to prepare various nanostructured materials without needing to search the available literature.
Download or read book New and Future Developments in Catalysis written by Steven L Suib and published by Newnes. This book was released on 2013-07-18 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: New and Future Developments in Catalysis is a package of seven books that compile the latest ideas concerning alternate and renewable energy sources and the role that catalysis plays in converting new renewable feedstock into biofuels and biochemicals. Both homogeneous and heterogeneous catalysts and catalytic processes will be discussed in a unified and comprehensive approach. There will be extensive cross-referencing within all volumes.This volume covers the synthesis of hybrid materials and composites using organocatalysts. All available catalytic processes are listed and a critical comparison is made between homogeneous versus heterogeneous catalytic processes. The economic pros and cons of the various processes are also discussed and recommendations are made for future research needs. Offers in-depth coverage of all catalytic topics of current interest and outlines future challenges and research areas A clear and visual description of all parameters and conditions, enabling the reader to draw conclusions for a particular case Outlines the catalytic processes applicable to energy generation and design of green processes
Download or read book Encyclopedia of Supramolecular Chemistry written by J. L. Atwood and published by CRC Press. This book was released on 2004 with total page 1022 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crystallizing a rapidly expanding interdisciplinary field and one of the most popular and newsworthy areas in contemporary chemistry, this two-volume encyclopaedia offers authoritative information with user-friendly and high-quality articles.
Download or read book Arsenic Removal from Water Using Nano scale Metal Oxide Incorporated Highly Ordered Mesoporous Silicate Media written by Min Jang and published by . This book was released on 2003 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microporous and Mesoporous Materials written by Reza Sabet Dariani and published by BoD – Books on Demand. This book was released on 2016-08-24 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book has been to explore the variety of phenomena associated with the major forms of the material, while laying the foundation for a clear and detailed working and understanding of the materials. We tried to present new types of advanced materials, which are currently a hot topic, and provide readers with a selective review of important improvements in the field. I believe that every chapter in this book presents the progress in the subject and describes the latest advances in microporous and mesoporous materials.
Download or read book Microporous Framework Solids written by Paul A. Wright and published by Royal Society of Chemistry. This book was released on 2008 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of microporous solids in solid state chemistry has seen a huge expansion over the last decades with new developments in a diverse range of directions and applications. Drawing upon nature as an inspiration, scientists are continually extending known families and preparing porous solids with novel structures. In turn, the novel properties that these possess stimulate further research and applications. Microporous Framework Solids describes fundamental principles and experimental practices of the synthetic chemistry and physical characterisation of crystalline microporous solids. It al.
Download or read book Zeolites and Ordered Mesoporous Materials Progress and Prospects written by Jiri Cejka and published by Gulf Professional Publishing. This book was released on 2005-10-03 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zeolites are the most frequently used industrial catalysts. Their applications range from oil refining, petrochemistry and the synthesis of special chemicals to environmental catalysis. Rapid progress in basic research and the development of new processes has resulted in the first Federation of European Zeolite Associations (FEZA) School on Zeolites. Zeolites and Ordered Mesoporous Materials: Progress and Prospects reflects the programme of the first School on Zeolites, held in Prague on August 20-21, 2005. Readers gain insight into the synthesis of the ever-expanding spectrum of zeolites, zeotypes and ordered mesoporous materials including the use of zeolites and mesoporous materials as catalysts in organic conversions. These range from the fascinating ship-in-bottle systems via cascade reactions to bulk applications in oil-refining and petrochemistry. Contributions from world experts enhance the book, with select chapters on trends in the molecular sieves field, zeolite structures, ion-exchange properties of zeolites, advanced applications (with unique technologies and opportunities) and a chapter on natural zeolites. * Contains contributions from world experts in the field * Includes an account of the frontier topic of high-throughput techniques * Reviews the application of quantum-chemical methods to zeolite science to show the necessity of combining experimental and theoretical approaches
Download or read book Thermodynamics of Manganese Oxides at Bulk and Nanoscale written by Nancy R. Birkner and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural manganese oxides are generally formed in surficial environments that are near ambient temperature and water-rich, and may be exposed to wet-dry cycles and a variety of adsorbate species that influence dramatically their level of hydration. Manganese oxide minerals are often poorly crystalline, nanophase, and hydrous. In the near-surface environment they are involved in processes that are important to life, such as water column oxygen cycling, biomineralization, and transport of minerals/nutrients through soils and water. These processes, often involving transformations among manganese oxide polymorphs, are governed by a complex interplay between thermodynamics and kinetics. Manganese oxides are also used in technology as catalysts, and for other applications. The major goal of this dissertation is to examine the energetics of bulk and nanophase manganese oxide phases as a function of particle size, composition, and surface hydration. Careful synthesis and characterization of manganese oxide phases with different surface areas provided samples for the study of enthalpies of formation by high temperature oxide melt solution calorimetry and of the energetics of water adsorption on their surfaces. These data provide a quantitative picture of phase stability and how it changes at the nanoscale. The surface energy of the hydrous surface of Mn3O4 is 0.96 ± 0.08 J/m2, of Mn2O3 is 1.29 ± 0.10 J/m2, and of MnO2 is 1.64 ± 0.10 J/m2. The surface energy of the anhydrous surface of Mn3O4 is 1.62 ± 0.08 J/m2, of Mn2O3 is 1.77 ± 0.10 J/m2, and of MnO2 is 2.05 ± 0.10 J/m2. Supporting preliminary findings (Navrotsky et al., 2010), the spinel phase (Mn3O4) has a lower surface energy (more stabilizing) than bixbyite, while the latter has a smaller surface energy than pyrolusite. These differences significantly change the positions in oxygen fugacity - temperature space of the redox couples Mn3O4 -Mn2O3 and Mn2O3-MnO2 favoring the lower surface enthalpy phase (the spinel Mn3O4) for smaller particle size and in the presence of surface hydration. Chemisorption of water onto anhydrous nanophase Mn2O3 surfaces promotes rapidly reversible redox phase changes at room temperature as confirmed by calorimetry, X-ray diffraction, and titration for manganese average oxidation state. Water adsorption microcalorimetry (in situ) at room temperature measured the strongly exothermic integral enthalpy of water adsorption (-103.5 kJ/mol) and monitored the energetics of the redox phase transformation. Hydration-driven redox transformation of anhydrous nanophase Mn(III)2O3, (high surface enthalpy of anhydrous surfaces 1.77 ± 0.10 J/m2) to Mn(II,III)3O4 (lower surface enthalpy 0.96 ± 0.08 J/m2) occurred during the first few doses of water vapor. Surface reduction of nanoparticle bixbyite (Mn2O3) to hausmannite (Mn3O4) occurs under conditions where no such reactions are seen or expected on grounds of bulk thermodynamics in coarse-grained materials. Layered structure manganese oxides contain alkali or alkaline earth cations and water, are generally fine-grained, and have considerable thermodynamic stability. The surface enthalpies (SE) of layered and tunnel structure complex manganese oxides are significantly lower than those of the binary manganese oxide phases. The SE for hydrous surfaces and overall manganese average oxidation state (AOS) (value in parentheses) are: cryptomelane 0.77 ± 0.10 J/m2 (3.78), sodium birnessite 0.69 ± 0.13 J/m2 (3.56), potassium birnessite 0.55 ± 0.11 J/m2 (3.52), and calcium birnessite 0.41 ± 0.11 J/m2 (3.50). Surface enthalpies of hydrous surfaces of the calcium manganese oxide nanosheets are: [delta]Ca(0.39)MnO(2.3)nH2O 0.75 ± 0.10 J/m2 (3.89) and [delta]Ca(0.43)MnO(2.3)nH2O 0.57 ± 0.12 J/m2 (3.68). The surface enthalpy of the complex manganese oxides appears to decrease with decreasing manganese average oxidation state, that is, with greater mixed valence manganese (Mn(3+/4+)). Low surface energy suggests loose binding of H2O on the internal and external surfaces and may be critical to catalysis in both natural and technological settings.
Download or read book Photoenergy and Thin Film Materials written by Xiao-Yu Yang and published by John Wiley & Sons. This book was released on 2019-03-26 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a fundamental discussion, latest research & developments, and the future of thin films and photoenergy materials, two developing areas that have the potential to spearhead the future of industry. Photoenergy materials are expected to be a next generation key material to provide secure, safe, sustainable and affordable energy. Photoenergy devices are known to convert the sunlight into electricity. This type of devices is very much simple in design with having a major advantage with their structure as stand-alone systems to provide outputs up to megawatts. They have been applied as a power source, solar home systems, remote buildings, water pumping, megawatt scale power plants, satellites, communications, and space vehicles. With such a list of enormous applications, the demand for photoenergy devices is growing every year. On the other hand, thin films coating, which can be defined as fusion of surface science, materials science, and applied physics, are progressing as a unified discipline of scientific industry. A thin film can be termed as a very fine or thin layer of material coated on a particular surface, that can be in the range of a nanometer in thickness to several micrometers in size. Thin films are being applied it a number of fields ranging from protection purposes to electronic semiconductor devices.
Download or read book Crystalline Metal Oxide Catalysts written by Wataru Ueda and published by Springer Nature. This book was released on 2022-10-26 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the innovatively advanced crystalline metal oxide catalysts that have multi-catalytic functions on the basis of spatially placed elements in crystal structure. With authors who are experts in their fields, the chapters of the book are organized according to catalytic function, on the basis of crystal structure. The book also covers the structure determination of micro–nano-sized metal oxide crystals that are now standard in most catalytic materials and new trends in catalyst development using materials informatics and catalytic informatics. The information contained here will guide researchers who are eager to carry out sustainable catalytic processes and ultimately to achieve a sustainable society in their quest for catalyst development.
Download or read book Catalysis by Microporous Materials written by H.K. Beyer and published by Elsevier. This book was released on 1995-05-19 with total page 811 pages. Available in PDF, EPUB and Kindle. Book excerpt: ZEOCAT '95 is the eleventh in the series of symposia devoted to special fields of zeolite chemistry. Six plenary lectures, forty oral and forty-two poster presentations were included in the program. The accepted papers cover every aspect of catalysis on microporous materials. A significant number of the contributions describe the synthesis, modification, instrumental and chemical characterisation of zeolites and other micro- and mesoporous materials. Catalytic reactions involve hydrocarbon cracking, nucleophilic aromatic substitution, methanol to hydrocarbon conversion, hydration of acetylene, various alkylation reactions, redox transformations, Claisen rearrangement, etc.
