Heterogeneous Catalysis of Mixed Oxides

Heterogeneous Catalysis of Mixed Oxides PDF Author: M. Misono
Publisher: Newnes
ISBN: 0444538348
Category : Technology & Engineering
Languages : en
Pages : 193

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Book Description
Mixed oxides are the most widely used catalyst materials for industrial catalytic processes. The principal objective of this book is to describe systematically the mixed oxide catalysts, from their fundamentals through their practical applications. After describing concisely general items concerning mixed oxide and mixed oxide catalysts, two important mixed oxide catalyst materials, namely, heteropolyacids and perovskites, are taken as typical examples and discussed in detail. These two materials have several advantages: 1. They are, respectively, typical examples of salts of oxoacids and double oxide, that is, the two main categories of mixed oxides in solid state chemistry. 2. Both exhibit excellent catalytic performance in nearly crystalline state and are used in several industrial applications. 3. They have studied for many years. In addition, metal oxides functioning as a catalyst support (carrier) are included. Although the supports are very important in practical applications, and tremendous progress has been made in the past decades, few systematic reviews exist. It is notable that heteropolyacids and perovskite exhibit unique performance when used as a support. Fundamental catalytic science and technology and solid state chemistry necessary is presented for the proper understanding of mixed oxide catalysts as well as for R&D. For the latter, the concept of design of practical catalysts is very important. This is considered throughout the book. - Systematically describes design principles of mixed oxide catalysts - Shows how catalysis and solid-state chemistry of metal oxides are inter-related - Covers all useful basic concepts of mixed oxide catalysis

Heterogeneous Catalysis of Mixed Oxides

Heterogeneous Catalysis of Mixed Oxides PDF Author: M. Misono
Publisher: Newnes
ISBN: 0444538348
Category : Technology & Engineering
Languages : en
Pages : 193

Get Book Here

Book Description
Mixed oxides are the most widely used catalyst materials for industrial catalytic processes. The principal objective of this book is to describe systematically the mixed oxide catalysts, from their fundamentals through their practical applications. After describing concisely general items concerning mixed oxide and mixed oxide catalysts, two important mixed oxide catalyst materials, namely, heteropolyacids and perovskites, are taken as typical examples and discussed in detail. These two materials have several advantages: 1. They are, respectively, typical examples of salts of oxoacids and double oxide, that is, the two main categories of mixed oxides in solid state chemistry. 2. Both exhibit excellent catalytic performance in nearly crystalline state and are used in several industrial applications. 3. They have studied for many years. In addition, metal oxides functioning as a catalyst support (carrier) are included. Although the supports are very important in practical applications, and tremendous progress has been made in the past decades, few systematic reviews exist. It is notable that heteropolyacids and perovskite exhibit unique performance when used as a support. Fundamental catalytic science and technology and solid state chemistry necessary is presented for the proper understanding of mixed oxide catalysts as well as for R&D. For the latter, the concept of design of practical catalysts is very important. This is considered throughout the book. - Systematically describes design principles of mixed oxide catalysts - Shows how catalysis and solid-state chemistry of metal oxides are inter-related - Covers all useful basic concepts of mixed oxide catalysis

Heteropolyacids as Highly Efficient and Green Catalysts Applied in Organic Transformations

Heteropolyacids as Highly Efficient and Green Catalysts Applied in Organic Transformations PDF Author: Majid M. Heravi
Publisher: Elsevier
ISBN: 0323906583
Category : Science
Languages : en
Pages : 390

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Book Description
Heteropolyacids as Highly Efficient and Green Catalysts Applied in Organic Transformations introduces heteropolyacids (HPAs) as promising candidates for use as green catalysts. This book initially presents an overview of chemistry of HPAs, including the history of their discovery and applications, systematic classifications, solubility, coordination and binding chemistry, isomerization, stability, redox activity, acidic properties, basicity, skeleton structure, structure types, self-assemblage, surface area, electrochemical behavior, methods of investigation, and characterization. Other sections present and compare the applications of HPAs as homogeneous and heterogeneous catalysts. The book provides readers with a basic-to-advanced range of knowledge on how useful and green HPAs can be used for use as catalysts in organic transformations and even the synthesis of complex organic molecules. - Focuses on applications of HPAs as catalysts, but also includes basic information on HPAs to make it useful to those researchers and scientists whose activities are focused on biochemical analysis, electrochemistry, electrochemical devices, protection of corrosion, medicine and photo-catalyzed reactions - Includes a subdivision devoted to HPA-catalyzed multicomponent reactions for the synthesis of some biologically active compounds via a double-green strategy - Illustrates reactions with approximately 100 chemical reaction schemes to aid understanding

Catalyst Preparation

Catalyst Preparation PDF Author: John Regalbuto
Publisher: CRC Press
ISBN: 1420006509
Category : Science
Languages : en
Pages : 490

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Book Description
This text explores the optimization of catalytic materials through traditional and novel methods of catalyst preparation, characterization, and monitoring for oxides, supported metals, zeolites, and heteropolyacids. It focuses on the synthesis of bulk materials and of heterogeneous materials, particularly at the nanoscale. The final chapters examine pretreatment, drying, finishing effects, and future applications involving catalyst preparation and the technological advances necessary for continued progress. Topics also include heat and mass transfer limitations, computation methods for predicting properties, and catalyst monitoring on laboratory and industrial scales.

Heterogeneous Catalysis

Heterogeneous Catalysis PDF Author: K.L. Ameta, Ph.D.
Publisher: CRC Press
ISBN: 1466594829
Category : Medical
Languages : en
Pages : 360

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Book Description
For more than a century, bioactive heterocycles have formed one of the largest areas of research in organic chemistry. They are important from a biological and industrial point of view as well as to the understanding of life processes and efforts to improve the quality of life. Heterogeneous Catalysis: A Versatile Tool for the Synthesis of Bioactive Heterocycles highlights the recent methodologies used in the synthesis of such bioactive systems and focuses on the role of heterogeneous catalysis in the design and synthesis of various biologically active heterocyclic compounds of pharmacological interest. Topics include: Synthetic protocols for the construction of heterocyclic systems employing silica-bound catalysts Recent advances in heterogeneous copper-catalyzed reactions for the synthesis of bioactive heterocycles Features of silica-based heterogeneous catalysts, such as abundance, ease of use, and stability Ultrasound as an effective tool for accelerating reactions Organic transformations catalyzed by nano-ZnO as a valuable heterogeneous catalyst Heterogeneous catalysts employed in the synthesis of coumarins Heterocyclizations in the presence of silver salts Home-made organometallic silica sources, known as silatranes Reflecting the focused studies currently conducted in these areas, the book also examines anticancer, antifungal, antibacterial, anti-HIV, anti-inflammatory, antioxidant, and many more biological activities of heterocyclic compounds. It is essential reading for postgraduate and research scholars in the fields of biochemistry, chemical biology, medicinal chemistry and pharmaceutical chemistry.

Supported Heteropoly Acids for Acid Catalysed Reactions

Supported Heteropoly Acids for Acid Catalysed Reactions PDF Author: Peter.William Llewelyn
Publisher:
ISBN:
Category :
Languages : en
Pages : 322

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Book Description


Heterogeneous Catalysis in Sustainable Synthesis

Heterogeneous Catalysis in Sustainable Synthesis PDF Author: Bela Torok
Publisher: Elsevier
ISBN: 0128178264
Category : Science
Languages : en
Pages : 678

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Book Description
Heterogeneous Catalysis in Sustainable Synthesis is a practical guide to the use of solid catalysts in synthetic chemistry that focuses on environmentally benign applications. Collating essential information on solid catalysts into a single volume, it reveals how the efficient use of heterogeneous catalysts in synthetic chemistry can support sustainable applications. Beginning with a review of the fundamentals of heterogeneous catalytic synthesis, the book then explores the basic concepts of heterogeneous catalytic reactions from adsorption to catalyst poisons, the use of non-traditional activation methods, recommended solvents, the major types of both metal and non-metal solid catalysts, and applications of these catalysts in sustainable synthesis. Based on the extensive experience of its expert author, this book aims to encourage and support synthetic chemists in using solid catalysts in their own work, while also highlighting the important link between heterogeneous catalysis and sustainability to all those interested. - Combines foundational knowledge with a focus on practical applications - Organizes information by reaction type, allowing readers to easily find examples of how to carry out specific reaction types with solid catalysts - Highlights emerging areas such as nanoparticle catalysis and metal-organic framework (MOF) based catalysts

Modern Applications of High Throughput R&D in Heterogeneous Catalysis

Modern Applications of High Throughput R&D in Heterogeneous Catalysis PDF Author: Alfred Hagemeyer
Publisher: Bentham Science Publishers
ISBN: 1608058727
Category : Science
Languages : en
Pages : 404

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Book Description
This eBook covers the application of high-throughput R&D to both fundamental and applied catalysis including catalyst synthesis, characterization, and testing in various reactor types. Chapters include topics such as applications ranging from optimizations of established industrial catalysts to the discovery of innovative new materials, examples of the development of innovative parallel characterization methods, and cases of real catalyst testing in small scale reactor systems. Readers will also find chapters that cover commodity chemicals produced using continuous gas phase processes as well as fine chemicals produced in liquid phase batch reactors. The potential of industrial chemicals production from biorenewable feedstocks is also presented. The steadily improving high throughput workflows are today being applied to relevant reactions and targets such as hydrotreating, Deacon oxidation, Fischer-Tropsch, propane dehydrogenation, C4 oxidation, methane coupling, exhaust gas catalysis, bio-based Nylon, fuel cells and vitamins. The topics presented in this eBook have been contributed by researchers from academia as well as industry, making this eBook a well-balanced reference, which could be of particular interest to professional, industrial or service R&D labs.

Homogeneous and Heterogeneous Catalysis

Homogeneous and Heterogeneous Catalysis PDF Author:
Publisher: VSP
ISBN: 9789067640732
Category : Science
Languages : en
Pages : 1206

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Book Description
This Proceedings contains plenary lectures and selected poster communications spanning the entire field of catalysis --- from catalysis by protons to catalysis by multinuclear clusters and ultra-disperse particles. It includes discussion of the recent results of fundamental research conducted at the juncture between homogeneous and heterogeneous catalysis. New ideas, based on modern physical and quantum-chemical methods, and concerning the mechanism of formation and functioning of active sites of catalysts are suggested. It is shown how the cyclic change of atomic distribution in the active site occurs during catalytic transformations. In addition, the Proceedings report new data on methods of ''assembling'' molecularly organized catalytic systems and on the mechanisms of their action. The various problems such as the effect of strong metal--support interaction, migration of atoms in active sites, and design of catalytic properties of substances are also widely discussed. Similarities and differences in mechanisms of action of homogeneous and heterogeneous catalysts are considered, using as examples CO hydrogenation, hydrogenolysis of saturated hydrocarbons, selective hydrogenation and oxidation of olefins, metathesis and polymerization of olefins, hydrosilylation and hydroformylation of olefins, etc.

Environmentally Benign Catalysts

Environmentally Benign Catalysts PDF Author: Anjali Patel
Publisher: Springer Science & Business Media
ISBN: 9400767102
Category : Science
Languages : en
Pages : 269

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Book Description
Over the past twenty years, Catalysis by Heteropolyacids (HPAs) has received wide attention and led to new and promising developments both at academic and industrial level. In particular, heterogeneous catalysis is particularly attractive because it generally satisfies most of green chemistry’s requirements. By emphasizing the development of third generation catalysts, this volume presents trends and opportunities in academic and industrial research. The book appeals to postgraduates, researchers, and chemists working in the field of environmentally benign catalysts as well as catalytic processes.

Heterogeneous Catalysis

Heterogeneous Catalysis PDF Author: K.L. Ameta Ph.D.
Publisher: CRC Press
ISBN: 1466594837
Category : Medical
Languages : en
Pages : 355

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Book Description
For more than a century, bioactive heterocycles have formed one of the largest areas of research in organic chemistry. They are important from a biological and industrial point of view as well as to the understanding of life processes and efforts to improve the quality of life. Heterogeneous Catalysis: A Versatile Tool for the Synthesis of Bioactiv