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Author : Craig I. Hiley
Publisher :
ISBN 13 :
Total Pages : 500 pages
Book Rating : 4.:/5 (921 download)
Download or read book New Oxides for Catalysis from Hydrothermal Synthesis written by Craig I. Hiley and published by . This book was released on 2014 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David L. Burnett
Publisher :
ISBN 13 :
Total Pages : 566 pages
Book Rating : 4.:/5 (11 download)
Download or read book New Oxides for Oxygen Evolution Catalysis from Hydrothermal Synthesis written by David L. Burnett and published by . This book was released on 2017 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kirsten Schuh
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (96 download)
Download or read book Hydrothermal Synthesis of Molybdenum Based Oxides for the Application in Catalysis written by Kirsten Schuh and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Crina Anastasescu
Publisher : Springer
ISBN 13 : 331932988X
Total Pages : 89 pages
Book Rating : 4.3/5 (193 download)
Download or read book 1D Oxide Nanostructures Obtained by Sol-Gel and Hydrothermal Methods written by Crina Anastasescu and published by Springer. This book was released on 2016-08-30 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents wet chemical sol-gel and hydrothermal methods for 1D oxide nanostructure preparation. These methods represent an attractive route to multifunctional nanomaterials synthesis, as they are versatile, inexpensive and, thus, appropriate for obtaining a wide range of oxide materials with tailored morphology and properties. Three specific oxides (SiO2, TiO2, ZnO) are discussed in detail in order to illustrate the principle of the sol-gel and hydrothermal preparation of 1D oxide nanostructures. Other oxides synthesized via this method are also briefly presented. Throughout the book, the correlation between the tubular structure and the physico-chemical properties of these materials is highlighted. 1D oxide nanostructures exhibit interesting optical and electrical properties, due to their confined morphology. In addition, a well-defined geometry can be associated with chemically active species. For example, the pure SiO2 nanotubes presented a slight photocatalytic activity, while the Pt-doped SiO2 tubular materials act as microreactors in catalytic reactions. In the case of titania and titanate nanotubes, large specific surface area and pore volume, ion-exchange ability, enhanced light absorption, and fast electron-transport capability have attracted significant research interest. The chemical and physical modifications (microwave assisted hydrothermal methods) discussed here improve the formation kinetics of the nanotubes. The ZnO nanorods/tubes were prepared as random particles or as large areas of small, oriented 1D ZnO nanostructures on a variety of substrates. In the latter case a sol-gel layer is deposited on the substrate prior to the hydrothermal preparation. Using appropriate dopants, coatings of ZnO nanorods with controlled electrical behavior can be obtained.
Author : Christopher Stuart Wright
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (142 download)
Download or read book Hydrothermal Synthesis of Cerium-containing Oxides for Use in Catalysis written by Christopher Stuart Wright and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Likun Pan
Publisher : BoD – Books on Demand
ISBN 13 : 9535122452
Total Pages : 652 pages
Book Rating : 4.5/5 (351 download)
Download or read book Perovskite Materials written by Likun Pan and published by BoD – Books on Demand. This book was released on 2016-02-03 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book summarizes the current state of the know-how in the field of perovskite materials: synthesis, characterization, properties, and applications. Most chapters include a review on the actual knowledge and cutting-edge research results. Thus, this book is an essential source of reference for scientists with research fields in energy, physics, chemistry and materials. It is also a suitable reading material for graduate students.
Author : Adriana Zaleska-Medynska
Publisher : Elsevier
ISBN 13 : 0128116331
Total Pages : 372 pages
Book Rating : 4.1/5 (281 download)
Download or read book Metal Oxide-Based Photocatalysis written by Adriana Zaleska-Medynska and published by Elsevier. This book was released on 2018-04-09 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal Oxide-Based Photocatalysis: Fundamentals and Prospects for Application explains the principles and fundamentals of metal oxide-based photocatalysis and the requirements necessary for their use in photocatalysis. It also discusses preparation methods for photocatalysis, and the advantages, disadvantages and achievements of the most important metal oxides (TiO2, ZnO, Fe2O3, Ta2O3, CuO, NiO, Cr2O3, RuO2, etc.). The book concludes with the most important photocatalytic applications and an overview of the future. Applications are organized by potential needs and solutions, addressing such areas as water treatment, hydrogen production, air treatment, chemical synthesis, and applications in medicine and construction. Provides coverage of applications, presenting needs and solutions Covers essential applications, such as water treatment, hydrogen production, air depollution, medical applications, and much more Includes the characterization of the most important metal oxides used in heterogeneous photocatalysis
Author : E.M. Flanigen
Publisher : Elsevier
ISBN 13 : 0080887112
Total Pages : 771 pages
Book Rating : 4.0/5 (88 download)
Download or read book Introduction to Zeolite Science and Practice written by E.M. Flanigen and published by Elsevier. This book was released on 1991-02-05 with total page 771 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zeolites and related molecular sieves have quickly become important pathways to new opportunities in the fields of oil processing and petrochemical synthesis. The signs of intense activity in both industry and academia are evident: burgeoning papers and patent applications; increasing numbers of industrial zeolite-based processes and their rapid expansion into organic chemicals manufacturing; recent progress in zeolite accessibility range, matrix behaviour, lattice components and satellite structures; and the recognition that zeolites, which are stable and can be regenerated, may be incorporated into new, environmentally friendly processes. This volume offers a thorough, up-to-date introduction to zeolites and such related materials as crystalline aluminium phosphates and clays. Its 16 chapters, each written by specialists, provide detailed treatments of zeolite theory (including a review of major developments), zeolite laboratory and research practice, and zeolite industry applications. Students and individuals entering the field will find Introduction to Zeolite Science and Practice a thorough guidebook. Experienced researchers will appreciate its in-depth coverage of the zeolite spectrum, including the latest views on zeolite structure, characterization and applications.
Author : Kenneth J. Balkus
Publisher : Elsevier Inc. Chapters
ISBN 13 : 0128081589
Total Pages : 60 pages
Book Rating : 4.1/5 (28 download)
Download or read book New and Future Developments in Catalysis written by Kenneth J. Balkus and published by Elsevier Inc. Chapters. This book was released on 2013-07-13 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Curtis Weeks
Publisher :
ISBN 13 : 9781423565765
Total Pages : 107 pages
Book Rating : 4.5/5 (657 download)
Download or read book Low Temperature Synthesis and Characterization of New Vandadium Oxides written by Curtis Weeks and published by . This book was released on 1998-02-01 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transition metal oxides are receiving a great deal of attention because the materials produced are showing promise in the fields of catalysis and electrochemistry. These materials are being produced in a variety of ways, but the low temperature hydrothermal method is producing materials with desired structural characteristics. This study discusses efforts in mild reaction conditions of heat temperatures ranging between 160 and 200 deg C. The factors of pH, reaction time, reaction temperature, and the presence of organic templating cations are also studied to see their impact on traditional and microwave reactions. The relatively new field of microwave synthesis has shown that materials which customarily took 2 days of reaction time in the traditional ovens are reproducible in 30-60 minutes via the microwave ovens. The influence of the organic cations in the reaction mediums is the focus of this particular study. The ability to produce layered vanadium oxides in the absence of such templating cations as TMA would make the materials potentially better for electrochemical purposes. This research used a variety of solvents in an attempt to produce interlayer bridging by organic anions. The solvents of ethylene glycol and acetic acid act as those bridges, each with 2 accessible oxygens.
Author : Chunbao Xu
Publisher :
ISBN 13 : 9781109871814
Total Pages : 258 pages
Book Rating : 4.8/5 (718 download)
Download or read book Continuous and Batch Hydrothermal Synthesis of Metal Oxide Nanoparticles and Metal Oxide-activated Carbon Nanocomposites written by Chunbao Xu and published by . This book was released on 2006 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: The continuous hydrothermal technique was also extended to materials other than metal oxides by synthesizing lithium iron phosphate. Differences in the particle sizes obtained using the batch and continuous methods were shown to be due to the different mechanisms of particle formation in the two techniques. Better particle characteristics (size, size distribution and morphology) were obtained using the continuous hydrothermal technique than using the batch hydrothermal method.
Author : Aytaç Şahin
Publisher :
ISBN 13 :
Total Pages : 136 pages
Book Rating : 4.:/5 (416 download)
Download or read book Hydrothermal Synthesis and Characterization of Transition Metal Oxides written by Aytaç Şahin and published by . This book was released on 2004 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrothermal method has proven to be an excellent method for the synthesis of novel metal oxides and vanadates. This research pertains to the synthesis of novel lead chlorovanadate compound and of a known alkali metal trivanadate compound, KV3O8 by hydrothermal method This method has been used to synthesize many inorganic oxide compounds Hydrothermal synthesis is the use of aqueous solvents under high temperature and high pressure to dissolve and recrystallize materials. Compounds with interesting structure and physical properties are often obtained from this technique that is known as one of the low-temperature synthesis techniques for solid state compounds. There are many studies that have been done on oxides in the Pb-V-O systems There are also many vanadium oxides containing Pb, V, O elements in Pb-V-O system such as Pb1.32V8.35O16.7, PbV6O11, PbV2O6, Pb2V3O8.5, and .-PbxV2O5 bronzes (x = 0.3). In an attempt to synthesize vanadium oxides at low temperature, we were able to obtain needle shaped yellow crystals of PbVO3Cl. In the nature, there is a kombatite mineral, Pb14(VO4)2O9Cl4, with the same composition of elements. A new lead chlorovanadate, PbVO3Cl, was obtained from the reaction of NaVO3 and PbCl2 in aqueous solution of B(OH)3. The compound was prepared in an autoclave that was filled with aqueous solution of B(OH)3 and heated at 170oC for 3 days. The compound crystallizes in the space group Pnma of the orthorhombic system with formula units in a cell of dimensions a = 10.022(2)
Author : Christian Hess
Publisher : Royal Society of Chemistry
ISBN 13 : 1847559875
Total Pages : 453 pages
Book Rating : 4.8/5 (475 download)
Download or read book Nanostructured Catalysts written by Christian Hess and published by Royal Society of Chemistry. This book was released on 2011-07-22 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book gives a comprehensive up-to-date summary of the existing information on the structural/electronic properties, chemistry and catalytic properties of vanadium and molybdenum containing catalysts. It discusses the importance of nanoscience for the controlled synthesis of catalysts with functional properties and introduces the necessary background regarding surface properties and preparation techniques, leading from a textbook level to the current state of knowledge. Then follows an extensive survey and analysis of the existing open and patent literature - an essential knowledge source for the development of the new generation of partial oxidation catalysts. Important examples from current research on partial oxidation reactions are reviewed from experts in the field. The next chapter discusses the importance of 2- and 3-dimensional model systems for a fundamental understanding of the structure of transition metal oxide catalysts and its correlation to reactivity. Finally, an outlook on research opportunities within the area of partial oxidation reactions is presented.
Author : Samuel Itumo Mutinda
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.:/5 (864 download)
Download or read book Hydrothermal Synthesis of Shape/size-controlled Cerium-based Oxides written by Samuel Itumo Mutinda and published by . This book was released on 2013 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: A low energy band gap between Ce3+ and Ce4+ states in cerium oxide along with its high oxygen mobility and high oxygen storage capacity are properties that qualify it as one of the most widely used heterogeneous catalysts and catalyst oxide supports. This thesis report is an account of studies that were carried out on the synthesis and catalytic properties of pure, metal-doped and noble-metal impregnated cerium oxide nanoparticles. Our results revealed that synthesis temperature, during hydrothermal reactions, plays a critical role in controlling the shape, size, oxygen vacancy concentration, and low temperature reducibility in CeO2 nanoparticles. In addition, OH− ion concentration was found to play an important role in engineering the lattice constants and oxygen vacancy concentrations of ceria nanoparticles within the same particle morphology and synthesis temperature. Secondly, our studies demonstrated that hydrothermal synthesis is a facile one-step approach to the preparation of compositionally homogeneous Ce[subscript x]Zr[subscript 1-x]O2 (0≤x≤1) nanocrystals, in which CeO2-ZrO2 mixed oxides present a superior low-temperature oxygen release capability compared to pure CeO2. The Ce[subscript 0.5]Zr[subscript 0.5]O2 system proved to have good thermal stability up to 1000°C under reducing and oxidizing atmosphere. We have also seen that at above 1000°C, phase transformation occurs from psudocubic to cation ordered pyrochlore or tetragonal phase under reducing and oxidizing atmosphere, respectively. This method may be easily extended to other cerium-based mixed oxides or synthesis of analogous mixed oxides. Lastly, our results established that the impregnation of 1 wt. % platinum and gold on CeO2 nanorods and on nanocubes causes an enhanced reduction on their surface reduction temperatures with negligible effect on their bulk reducibility. It was also shown that both pure and impregnated CeO2 nanorods have a lower surface reduction temperature compared to that of pure and impregnated CeO2 nanocubes. We have also demonstrated that gold nanoparticles proved to have a higher catalytic performance in oxidizing molecular hydrogen at low temperatures as compared to platinum nanoparticles.
Author : M. Ishaque Khan
Publisher : Elsevier Inc. Chapters
ISBN 13 : 0128081716
Total Pages : 55 pages
Book Rating : 4.1/5 (28 download)
Download or read book New and Future Developments in Catalysis written by M. Ishaque Khan and published by Elsevier Inc. Chapters. This book was released on 2013-07-18 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : M. Jaroniec
Publisher : Elsevier
ISBN 13 : 0080537227
Total Pages : 711 pages
Book Rating : 4.0/5 (85 download)
Download or read book Nanoporous Materials III written by M. Jaroniec and published by Elsevier. This book was released on 2002-05-15 with total page 711 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanoporous Materials III contains the invited lectures and peer-reviewed oral and poster contributions to be presented at the 3rd Conference on Nanoporous Materials, which will be hosted in Ottawa, Canada, June 2002. The work covers complementary approaches to and recent advances in the field of nanostructured materials with pore sizes larger than 1nm, such as periodic mesoporous molecular sieves M41S and FSM16 and related materials including clays, carbon molecular sieves, colloidal crystal templated organic and inorganic materials, porous polymers and sol gels. The broad range of topics covered in relation to the synthesis and characterization of ordered mesoporous materials are of great importance for advanced adsorption, catalytic and separation processes as well as the development of nanotechnology. The contents of this title are based on topics to be discussed by invited lecturers, which deal with periodic mesoporous organosilicas, stability and catalytic activity of aluminosilicate mesostructures, electron microscopy studies of ordered materials, imprinted polymers and highly porous metal-organic frameworks. The other contributions deal with tailoring the surface and structural properties of nanoporous materials, giving a detailed characterization as well as demonstrating their usefulness for advanced adsorption and catalytic applications.
Author : Tadafumi Adschiri
Publisher : Elsevier Inc. Chapters
ISBN 13 : 0128057513
Total Pages : 83 pages
Book Rating : 4.1/5 (28 download)
Download or read book Handbook of Advanced Ceramics written by Tadafumi Adschiri and published by Elsevier Inc. Chapters. This book was released on 2013-04-11 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt:
