Download or read book Catalytic Wet Oxidation of Organic Impurities in Water with a Nanocasted Mixed Oxide Catalyst of Transition Metals written by Marina Milman and published by . This book was released on 2007 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Oxidation Catalysts written by and published by Academic Press. This book was released on 2019-06-22 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water Oxidation Catalysts, Volume 74, the latest release in the Advances in Inorganic Chemistry series, presents timely and informative summaries on current progress in a variety of subject areas. This acclaimed serial features reviews written by experts in the field, serving as an indispensable reference to advanced researchers. Users will find this to be a comprehensive overview of recent findings and trends from the last decade that covers various kinds of inorganic topics, ranging from theoretical oriented supramolecular chemistry, to the quest for accurate calculations of spin states in transition metals. - Provides the authority and expertise of leading contributors from an international board of authors - Presents the latest release in the Advances in Inorganic Chemistry series - Includes the latest information on water oxidation catalysts
Download or read book Molecular Water Oxidation Catalysis written by Antoni Llobet and published by John Wiley & Sons. This book was released on 2014-04-14 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photocatalytic water splitting is a promising strategy for capturing energy from the sun by coupling light harvesting and the oxidation of water, in order to create clean hydrogen fuel. Thus a deep knowledge of the water oxidation catalysis field is essential to be able to come up with useful energy conversion devices based on sunlight and water splitting. Molecular Water Oxidation Catalysis: A Key Topic for New Sustainable Energy Conversion Schemes presents a comprehensive and state-of-the-art overview of water oxidation catalysis in homogeneous phase, describing in detail the most important catalysts discovered today based on first and second row transition metals. A strong emphasis is placed on the description of their performance, as well as how they work from a mechanistic perspective. In addition, a theoretical description of some of the most relevant catalysts based on DFT are presented, as well as a description of related natural systems, such as the oxygen evolving system of photosystem II and the heme chlorite-dismutase. This book is a valuable resource for researchers working on water oxidation catalysis, solar energy conversion and artificial photosynthesis, as well as for chemists and materials scientists with a broad interest in new sustainable energy conversion schemes.
Download or read book Transition Metal Catalysis in Aerobic Alcohol Oxidation written by Francesca Cardona and published by Royal Society of Chemistry. This book was released on 2015 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the search for environmentally benign procedures for the oxidation of alcohols and gives an overview of their transition-metal-catalyzed aerobic oxidation.
Download or read book Metal Catalyzed Reactions in Water written by Pierre Dixneuf and published by John Wiley & Sons. This book was released on 2013-01-17 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water is abundant in nature, non-toxic, non-flammable and renewable and could therefore be safer and economical for the chemical industry wherever it is used as a solvent. This book provides a comprehensive overview of developments in the use of water as a solvent for metal catalysis, illustrating the enormous potential of water in developing new catalytic transformations for fi ne chemicals and molecular materials synthesis. A group of international experts cover the most important metalcatalyzed reactions in water and bring together cutting-edge results from recent literature with the first-hand knowledge gained by the chapter authors. This is a must-have book for scientists in academia and industry involved in the fi eld of catalysis, greener organic synthetic methods, water soluble ligands and catalyst design, as well as for teachers and students interested in innovative and sustainable chemistry.
Download or read book Testing Novel Water Oxidation Catalysts for Solar Fuels Production written by Carminna Ottone and published by Springer. This book was released on 2019-02-28 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers comprehensive information on the main techniques for measuring water-oxidation-catalyst (WOC) performance, with a particular focus on the combined use of sacrificial oxidants and dyes within closed-batch reactors. It provides an overview of the latest advances in the synthesis of more efficient WOCs, followed by an analysis of the requirements for sustainable energy production. Readers will find a detailed description of the reaction mechanism used in catalyst assessment systems, which reveals the benefits and limitations of the most common sacrificial oxidant/dye pair. Experimental techniques including electrochemical methods for characterizing novel and non-photoactive WOCs are also described. Throughout the book, various manganese oxides are used as examples of the techniques reviewed or proposed systems. Cost considerations and technological perspectives of the scale-up of solar-driven hydrogen production are also addressed. Lastly, the book presents lessons learned from the implementation of a large-scale real-world device.
Download or read book Metal Oxides and Related Solids for Electrocatalytic Water Splitting written by Junlei Qi and published by Elsevier. This book was released on 2022-05-05 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal Oxides and Related Solids for Electrocatalytic Water Splitting reviews the fundamentals and strategies needed to design and fabricate metal oxide-based electrocatalysts. After an introduction to the key properties of transition metal oxides, materials engineering methods to optimize the performance of metal-oxide based electrocatalysts are discussed. Strategies reviewed include defect engineering, interface engineering and doping engineering. Other sections cover important categories of metal-oxide (and related solids) based catalysts, including layered hydroxides, metal chalcogenides, metal phosphides, metal nitrides, metal borides, and more. Each chapter introduces important properties and material design strategies, including composite and morphology design. There is also an emphasis on cost-effective materials design and fabrication for optimized performance for electrocatalytic water splitting applications. Lastly, the book touches on recently developed in-situ characterization methods applied to observe and control the material synthesis process. - Introduces metal oxide-based materials for electrocatalytic water splitting applications, including their key properties, synthesis, design and fabrication strategies - Reviews the most relevant materials design strategies, including defect engineering, interface engineering, and doping engineering - Discusses the pros and cons of metal oxide-based materials for water splitting applications to aid in materials selection
Download or read book The Catalytic Oxidation of Organic Compounds in the Vapor Phase written by Leroy Frank Marek and published by . This book was released on 1932 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Novel Catalysts in Advanced Oxidation of Organic Pollutants written by Süheyda Atalay and published by Springer. This book was released on 2016-02-08 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This brief summarizes the role of certain catalysts and associated processes that are involved in the reduction or elimination of hazardous substances from wastewater and the exploitation of renewable raw materials. The authors begin by providing a summary of the most recent developments in catalysts used in the advanced oxidation of organic pollutants in aqueous phase. Advanced Oxidation Processes (AOPS) are described in terms of homogeneous and heterogeneous catalysts. Some emphasis is placed on the role nanocatalysts, perovskite-type catalysts, and green catalysts play in several AOPs such as Fenton Chemistry, photocatalytic oxidation, and the hybrid technologies that combine different processes. Catalyst preparation, characterization, reaction chemistry, and process technology are described. Specific wastewater case studies which illustrate the role of these catalysts in AOPs completes the brief.
Download or read book Transition Metal Oxides written by Harold H. Kung and published by . This book was released on 1989 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalytic Oxidation of Organic Compounds in Waste Water written by Gerard V. Smith and published by . This book was released on 1971 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Catalytic Oxidation of Organic Compounds in the Vapor Phase written by Leroy Frank Marek and published by . This book was released on 2013-06 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Additional Contributors Include Harrison E. Howe, S. C. Lind, Walter A. Schmidt, And Others.
Download or read book Trends in Catalytic Wet Peroxide Oxidation Processes written by Asuncion Quintanilla and published by MDPI. This book was released on 2020-01-07 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives an overview of the state of the art in Catalytic Wet Peroxide Oxidation research for the treatment of industrial and urban wastewaters and provides novel solutions to overcome the current challenges of this technology. These solutions include tailoring of the catalysts to exploit the use of additional energy sources and oxidants. The collected papers illustrate the high versatility of this low-cost technology, easily adaptable to any kind of wastewater, either polluted by high-loaded recalcitrant organics in industrial wastewaters or by emerging pollutants at microconcentration levels in urban waters.
Download or read book Preparation of Noble Metal Free Mixed Oxides written by Yin Xu and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a political and legislative context promoting the use of abundant and non-toxic metals, different classes of transition metal catalysts have been developed and evaluated for two depollution reactions: (i) catalytic ozonation or activated persulfate for the elimination of pollutants containing nitrogen in the aqueous phase and (ii) the catalytic oxidation of volatile organic compounds in the gas phase. Structural spinel oxides AB2O4 and perovskites having the general formula ABO3 (where A and B are metal cations) are interesting candidates because of their safety and lower cost compared to platinum family metals. Moreover, the versatile properties of these mixed oxides, such as the numerous possible compositions and their associated surface states, have demonstrated their interest in heterogeneous catalysis. In the first reaction concerning advanced oxidation processes, spinel type mixed oxides have been studied to act as a degradation catalyst for organic pollutants (AO7 and bisphenol A). Two compositions, CuAl2O4 and CuFe2O4, have been isolated as active catalysts for the activation of ozone and peroxymonosulphate radical precursors. The combination of copper with aluminum or iron has been found to be beneficial in forming reactive radicals from ozone or peroxymonosulphate, significantly improving the degradation of targeted pollutants compared with simple oxides. In the second reaction involving the catalytic oxidation of formaldehyde in the gas phase, the perovskites and the manganese oxides were evaluated. A study dealing with the surface enrichment of the transition metal was carried out either by chemical treatment via acid washing of the perovskite precursor, or by a sub-stoechiometric approach used during the preparation. At the light of the experimental results, this enrichment improves drastically the elimination of formaldehyde towards low temperatures. These performances can be related to the cumulative effects associated with the formation of a morphology containing a multiple porosity following the acidic chemical treatment, the significant increase of the specific surface and the increase of the density of the surface redox sites highlighted by the Mn4 + / Mn3 + couple. Finally, the promotion of the catalytic support LaMnO3 by alkali and alkaline earth metals was carried out according to different conditions (La0.8A0.2MnO3 with A = K, Na, Sr, Ca). Based on the catalytic performances at a temperature giving a conversion of 50% of formaldehyde in CO2, potassium doping proved to be the most attractive doping agent (La0.8K0.2MnO3> La0.8Na0.2MnO3> La0.8Sr0.2MnO3> LaMnO3 = La0. 8Ca0.2MnO3= LMO-OH = LMO-Na). Chemical aging under wet and dry conditions has therefore been carried out on the best catalysts to evaluate their robustness. Despite a conservation of textural properties, a gradual deactivation of the doped perovskites (K, Na, Sr) was observed and related to a loss of surface active oxygen species and a reduction in the average degree of oxidation of manganese.
Download or read book New Developments in Selective Oxidation by Heterogeneous Catalysis written by P. Ruiz and published by Elsevier. This book was released on 1992-02-06 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains invited papers and communications presented at the Third European Workshop Meeting on Selective Oxidation by Heterogeneous Catalysis. The purpose of the meeting was to present recent results and to discuss new aspects of partial oxidation by heterogeneous catalysis. The following topics were discussed: Novel processes for obtaining new fine chemicals by catalytic partial oxidation; selective oxidation and oxidative dehydrogenation of alkanes; new catalysts and advances in preparation methods of oxidation catalysts; new phenomena in partial oxidation and new aspects of surface chemistry in oxide catalysts; new applications of physicochemical methods for characterization of oxide catalysts; oxidation with other agents than oxygen and catalytic oxidation of carbohydrates. This book will provide a valuable set of data on reactions of selective oxidation which will be extremely useful to catalyst and related practitioners, whether fundamentalists or highly applied, and to process engineers who wish to evaluate current findings in this field. The wide-range approach to reactions of selective oxidation will disseminate knowledge in specialized areas of selective oxidation and encourage innovation and creativity.
Download or read book Development Studies for a Novel Wet Oxidation Process written by Patrick M. Dhooge and published by . This book was released on 1994 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: A catalytic wet oxidation process which uses an acidic iron solution to oxidize organic compounds to carbon dioxide, water, and other simple products, was investigated as a potential method for the treatment of multicomponent hazardous and mixed wastes.
Download or read book Metal Oxides Chalcogenides and Composites written by Aneeya Kumar Samantara and published by Springer. This book was released on 2019-09-16 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the recent development of metal oxides, hydroxides and their carbon composites for electrochemical oxidation of water in the production of hydrogen and oxygen as fuels. It includes a detailed discussion on synthesis methodologies for the metal oxides/hydroxides, structural/morphological characterizations, and the key parameters (Tafel plot, Turnover frequency, Faradic efficiency, overpotential, long cycle life etc.) needed to evaluate the electrocatalytic activity of the materials. Additionally, the mechanism behind the electro oxidation process is presented. Readers will find a comprehensive source on the close correlation between metal oxides, hydroxides, composites, and their properties and importance in the generation of hydrogen and oxygen from water. The depletion of fossil fuels from the earth’s crust, and related environmental issues such as climate change, demand that we search for alternative energy resources to achieve some form of sustainable future. In this regard, much scientific research has been devoted to technologies such as solar cells, wind turbines, fuel cells etc. Among them fuel cells attract much attention because of their versatility and efficiency. In fuel cells, different fuels such as hydrogen, CO2, alcohols, acids, methane, oxygen/air, etc. are used as the fuel, and catalysts are employed to produce a chemical reaction for generating electricity. Hence, it is very important to produce these fuels in an efficient, eco-friendly, and cost effective manner. The electrochemical splitting of water is an environmentally friendly process to produce hydrogen (the greener fuel used in fuel cells), but the efficiencies of these hydrogen evolution reactions (cathodic half reaction) are strongly dependent on the anodic half reaction (oxygen evolution reaction), i.e., the better the anodic half, the better will be the cathodic reaction. Further, this oxygen evolution reaction depends on the types of active electrocatalysts used. Though many more synthetic approaches have been explored and different electrocatalysts developed, oxide and hydroxide-based nanomaterials and composites (with graphene, carbon nanotubes etc.) show better performance. This may be due to the availability of more catalytic surface area and electro active centers to carry out the catalysis process.
