Download or read book Colloidal Design of Active Selective and Stable Catalysts for Methane Utilization written by Emmett Daniel Goodman and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to recent advances in locating and extracting natural gas resources, scientists in academia and industry are looking for new processes to take advantage of methane as a chemical precursor and fuel. However, there remain significant challenges in methane utilization; these are related to the strength of methane's carbon-hydrogen bonds, which makes this molecule difficult to activate and utilize. Without a catalyst, methane activation necessitates very high temperatures (~1000 oC), which lead to high energy costs, advanced infrastructure, toxic by-products, and poor product selectivity. Our work focuses on developing catalysts with well-defined structural properties to understand what makes materials active, selective, and stable for methane transformations. To understand which specific nanostructures are best for methane activation, size- and composition- controlled Pt/Pd nanocrystals were designed and studied to reveal the effect of catalyst structure on methane activation. Here, we discuss the effect of these unexplored parameters on methane activation rates, resistance to common catalytic poisons, and changes in oxidation state -- each of which has an important role in contributing to low-temperature activity. Perhaps the greatest challenge in methane activation is selective product formation. In this area, we studied how tuning catalyst support can help selectively produce valuable products (synthesis gas) rather than typical combustion products (carbon dioxide and water). Additionally, we started looking at even more unique nanostructures, involving both organic and inorganic components, for selective methane transformations. The high temperatures needed to activate methane require stable catalysts. By taking advantage of modular colloidal catalyst assembly, we demonstrated synthetic approaches to tune, and measure, the spatial properties of nanocrystal active sites. We found that in many conditions, the spatial properties of active sites determined catalyst stability. In Pd/Al2O3 materials we observed that closer nanocrystals are more stable, in a distant-dependent degradation process. However, in Pd/SiO2 materials we found the opposite - that stability properties are largely distant-independent. Overall, by developing colloidal approaches to catalyst synthesis, we created well-defined catalysts with precisely-controlled sizes, compositions, and spatial properties, which have helped us uncover important design rules for active, selective, and stable methane transformations.
Download or read book Selectivity in Catalysis written by Mark E. Davis and published by . This book was released on 1993 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses recent research and provides tutorial chapters on enhancing selectivity in catalysis through stereoselectivity, reaction pathway control, shape selectivity, and alloys and clusters. Presents an interdisciplinary approach to increasing selectivity in homogeneous and heterogeneous catalysis research. Includes an overview chapter that discusses the current state of the field and offers a perspective on future directions.
Download or read book Design And Applications Of Single site Heterogeneous Catalysts Contributions To Green Chemistry Clean Technology And Sustainability written by John Meurig Thomas and published by World Scientific Publishing Company. This book was released on 2012-04-16 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: For far too long chemists and industrialists have relied on the use of aggressive reagents such as nitric and sulphuric acids, permanganates and dichromates to prepare the massive quantities of both bulk and fine chemicals that are needed for the maintenance of civilised life — materials such as fuels, fabrics, foodstuffs, fertilisers and pharmaceuticals. Such aggressive reagents generate vast quantities of environmentally harmful and often toxic by-products, including the oxides of nitrogen, of metal oxides and carbon dioxide.Now, owing to recent advances made in the synthesis of nanoporous solids, it is feasible to design new solid catalysts that enable benign, mild oxidants to be used, frequently without utilising solvents, to manufacture the products that the chemical, pharmaceutical, agro- and bio-chemical industries require. These new solid agents are designated single-site heterogeneous catalysts (SSHCs). Their principal characteristics are that all the active sites present in the high-area solids are identical in their atomic environment and hence in their energy of interaction with reactants, just as in enzymes.Single-site heterogeneous catalysts now occupy a position of growing importance both academically and in their potential for commercial exploitation. This text, the only one devoted to such catalysts, dwells both on principles of design and on applications, such as the benign synthesis of nylon 6 and vitamin B3. It equips the reader with unifying insights required for future catalytic adventures in the quest for sustainability in the materials used by humankind.Anyone acquainted with the language of molecules, including undergraduates in the physical and biological sciences, as well as graduates in engineering and materials science, should be able to assimilate the principles and examples presented in this book. Inter alia, it describes how clean technology and ‘green’ processes may be carried out in an environmentally responsible manner.
Download or read book Sanna och falska christnas k nnem rken f rn mligast af deras tal i anledning af Christi utl telse Matth 12 34 35 D r hjertat med fullt r d raf talar munnen En god m nniska b r godt fram af hjertans goda fatabur och en ond m nniska written by and published by . This book was released on 1785 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design and Understanding of Selective Catalysts Using Colloidal Nanoparticle Synthesis written by Cody James Wrasman and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Catalysts are a critical component of the chemical industry that produces products that we rely on every day. A common geometry for industrial catalysts is comprised of metal nanoparticles dispersed on oxide supports. Numerous works have shown how control over the geometry of this catalyst motif can be leveraged to create catalysts with improved catalytic activity, selectivity, and stability. However, traditional catalyst synthesis techniques often do not provide the required control over important catalyst parameters such as nanoparticle size and alloy nanoparticle composition. In the works outlined in this thesis, colloidal synthesis is used to produce highly uniform nanoparticles with precise control over their geometry. First, a seed-mediated colloidal synthetic technique was developed to produce dilute (or single atom) alloy nanoparticles. Electron microscopy, UV-Vis spectroscopy, and X-ray absorption measurements were used to verify the formation of Pd/Au and Pd/Ag alloy nanoparticles with control over the Pd ensemble size down to single atoms. The Pd/Au nanoparticles were then used to carry out selective oxidation of alcohols in the presence of hydrogen and oxygen with attention paid to the impact of Pd ensemble size within Au on activity. It was found that Pd/Au alloy nanoparticles outperformed both pure metals, with the most dilute levels of Pd offering the largest improvement in catalytic activity while maintaining nearly complete selectivity to the desired product. Beyond improving catalytic activity, this work shows how the ability to tune several catalyst parameters independently enables better understanding of catalytic mechanisms. In particular, the mechanism of selective oxidation reactions in which a selective oxidant, likely hydrogen peroxide, is created from a mixture of hydrogen and oxygen over Au and Pd/Au catalysts are described. Through systematic testing, it was demonstrated that while Au nanoparticles need an interface with a metal oxide to produce the selective oxidant, Pd/Au nanoparticles carried out selective oxidation without contact with metal oxides. Furthermore, this work shows that once mobile oxidants are produced, they are able to diffuse through the catalytic bed do different catalytic sites. Beyond selective oxidation, this thesis describes how colloidal Ru nanoparticles can be used to determine the number of sites on an oxide support capable of hosting single metal atoms. This finding has implications for the creation of highly dispersed catalysts that exhibit reaction selectivity unique from nanoparticle catalysts. Despite its ability to create highly uniform catalysts, colloidal synthesis is currently mostly confined to the laboratory scale due to the relatively high cost and small scale at which nanoparticles are produced. While other groups are working to translate batch processes into continuous flow systems, little has been done to address the waste of expensive synthesis solvents that drive up the cost of colloidal nanoparticles. To address solvent waste, this work examines processes for recycling nanoparticle synthesis solvents and demonstrates the potential to produce uniform mono and bimetallic nanoparticles over many reuses. This work opens the door to closed loop processes where the colloidal nanoparticles are produced continuously requiring only metal precursors and a small amount of surfactants. Such a process would allow superior colloidal nanoparticle catalysts developed in the laboratory to be translated to more industrially relevant scales. Together, the projects outlined in this thesis demonstrate the potential of colloidally synthesized nanoparticles to improve the activity of selective catalytic reactions and to uncover mechanistic insights in complex, multi-site transformations. It also provides a scheme for how these and other laboratory scale discoveries can be transferred to industrial application.
Download or read book Design of Heterogeneous Catalysts written by Umit S. Ozkan and published by John Wiley & Sons. This book was released on 2009-02-11 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This long-awaited reference source is the first book to focus on this important and hot topic. As such, it provides examples from a wide array of fields where catalyst design has been based on new insights and understanding, presenting such modern and important topics as self-assembly, nature-inspired catalysis, nano-scale architecture of surfaces and theoretical methods. With its inclusion of all the useful and powerful tools for the rational design of catalysts, this is a true "must have" book for every researcher in the field.
Download or read book Developing Methods to Inform Catalyst Design for the Electrochemical Oxidation of Methane and Alcohols written by Michael James Boyd and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: As the production of natural gas and agricultural biomass/energy crops increases, new efficient and sustainable technologies will be required to convert these feedstock molecules into the same fuels and chemical we get from conventional petroleum today. Electrochemistry is a possible tool for the conversion of these species that can be coupled to renewable electricity. The discovery and development of selective and active electrocatalysts is one of the primary challenges in utilizing natural gas and biomass resources. But first there is a lack of fundamental understanding in (1) the reaction mechanism and (2) how operating conditions such as potential, electrolyte pH, mass transport, and time affect the the activity and selectivity of catalysts. To this end platinum was used as a model system to study electrochemical methane oxidation at room temperature and pressure. The experimental results on platinum combined with density functional theory calculations show that methane is first thermally activated at Pt (211) like step sites, then the resulting methyl intermediate is electrochemically oxidized to CO* which is in equilibrium with the final product CO2. The equilibrium can be shifted to favor complete oxidation by adjusting the applied electrochemical potential, specifically at potentials below 0.5 V vs. RHE CO* is the most thermodynamically stable species along the reaction pathway whereas above 0.5 V vs. RHE CO2 is now the most stable species. Important to note however is that since the kinetics for methane activation are very slow (barrier of ~0.95 eV) the platinum surface must be free of other adsorbed species, namely protons or hydroxides. Based on reaction mechanism for electrochemical methane oxidation on platinum it is unlikely that partial oxidation of methane on metallic electrodes well occur. For this reason we probed the activity of several transition metal oxide materials with the hope that they may be active for methane oxidation. Unfortunately our initial results suggest no significant methane oxidation occurs on these materials. In the case of biomass oxidation 1st row transition metal oxides have recently been shown to be quite selective in the conversion of alcohols to their corresponding carboxylic acids. Benzyl alcohol was used as a model molecule to study the reaction mechanism for alcohol oxidation on Ni(OH)2 electrodes as a function of potential and electrolyte pH. It was found that the active phase for alcohol oxidation is the metal oxy-hydroxide. The activity and selectivity were found to be heavily dependent on the electrolyte pH. Under strong alkaline conditions (> pH 13) high current densities and complete oxidation of benzyl alcohol to benzoate was favored whereas at more moderately alkaline conditions low current densities and partial oxidation to benzaldehyde was favored. Based on these results we hypothesize that a significant concentration of OH- in solution is required to activated the intermediate product benzaldehyde. The activity of several novel Ni materials was also probed for benzyl alcohol oxidation. Ni-doped nitrided carbons which have single atom nickel active sites were found to be selective for partial oxidation, however further optimization of the catalyst synthesis is required to increase the activity to compete with the bulk Ni(OH)2 electrodes. In conclusion, this dissertation presents a variety of experimental work focused on identifying the reaction mechanism for several oxidation reactions and provides key understanding that can be used towards the development of new electrocatalysts for the oxidation of hydrocarbons and alcohols.
Download or read book Colloids written by Mohamed Nageeb Rashed and published by BoD – Books on Demand. This book was released on 2021-09-08 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Colloids are submicron particles that are ubiquitous in both natural and industrial products. Colloids and colloidal systems play a significant role in human health as well as commercial and industrial situations. Colloids have important applications in medicine, sewage disposal, water purification, mining, photography, electroplating, agriculture, and more.This book gathers recent research from experts in the field of colloids and discusses several aspects of colloid morphology, synthesis, and applications. The book is divided into three sections that cover different techniques for the synthesis of colloids, the structure, dynamic and stability of colloids, and applications of colloidal particles, respectively.
Download or read book Rational Catalyst Design for Direct Conversion of CH4 and CO2 written by Vesna Havran Mueller and published by . This book was released on 2013 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: Possibilities for mitigation of carbon dioxide and methane levels in the atmosphere are of major global interest. One of the alternatives that attracts much scientific attention is their chemical utilization, especially because both of these gases are components of the natural gas, and rapid and extensive shale gas development makes them abundant raw materials. Development of an effective catalytic process that could be scaled-up for industrial purposes remains a great challenge for catalysis. Understanding of the mechanisms of molecular activation as well as of the reaction pathways over active centers on heterogeneous catalysts needs to be advanced. To that end this work focused on initiating the development of a bifunctional catalyst for low-temperature (200C - 450C) direct conversion of methane and carbon dioxide by tailoring the structure of each active component using the insights from molecular modeling. Pt nanoparticles supported on ceria support have been selected based on molecular modeling and density functional theory analysis that provided the guidance for the catalyst structure optimization. Tetrahedral Pt nanoclusters, with a high fraction of edge and corner sites that would supposedly promote methane activation, were prepared by carefully adjusting the concentration ratio between Pt precursor and the capping polymer. Ceria nanorods, exhibiting more reducible facets that would activate carbon dioxide, were prepared by hydrothermal method. Conventional incipient wetness and modified polyol method were also used for the preparation of supported round shape Pt samples, for the comparison. Catalyst activity was evaluated by studying the H2 evolution rates during the exposure of the catalyst to the methane flow, in a small packed bed reactor, at the atmospheric pressure and temperatures up to 450C. Insights into the structure of the adsorbed carbonaceous species, formed during methane chemisorption, were gained from temperature programmed reduction profiles. The effects of catalyst structure, reaction temperature, CH4 partial pressure and the Pt loading on the methane activation were outlined. Results revealed that a strong metal-support interaction, characteristic for the ceria supported samples, had a pronounced impact not only on the total amount of chemisorbed CH4, but also on the structure of the adsorbed carbonaceous film. This has been attributed to the high concentrations of oxygen vacancies at the interface between ceria and Pt. The promoting effect of ceria was further confirmed in the experiments involving supported tetrahedral Pt nanoclusters. However, the application of these nanoparticles was limited by the instability of their shapes under reaction conditions. New synthesis methods that would increase the catalyst stability and prevent reconstruction of cluster shapes need to be developed. Further studies of the reactivity of the adsorbed carbonaceous species with the carbon dioxide and the selectivity towards desired oxygenates are needed. An integrated method involving both experimental and modeling efforts could enable more rational design of new materials with improved activity and selectivity and could potentially cut the costs and duration of extensive "trial-and-error" approach commonly practiced in industry. The possibility of tailoring catalyst activity and selectivity through shape and size- control could lead to the more efficient catalyst utilization.
Download or read book Catalytic Amination for N Alkyl Amine Synthesis written by Feng Shi and published by Academic Press. This book was released on 2018-03-16 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Catalytic Amination for N-Alkyl Amine Synthesis provides a useful survey of this key type of reaction for chemistry researchers in academia and industry. Beginning with an introduction to amination and the development of the field, the book focuses on useful and high potential methods, such as the catalytic amination of alcohol with homogeneous and heterogeneous catalysts, the coupling reaction of olefin and amine, and the reductive amination of carbon dioxide with different reducing agents. The work also discusses two key examples of one-pot synthesis, the oxidative amination of alkane and amine and synthesis of N-alkyl amine with nitrobenzene and nitrile as starting materials. Valuable for chemists, materials scientists, chemical engineers and others, the book offers a unique overview of this growing area and its future possibilities.
Download or read book Design and Development of Supported Transition Metal Phosphide Catalysts for Syngas Conversion to Alcohols written by Eduardo Valle (Researcher in chemical engineering) and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In attempts to address the threats of climate change, countries are making efforts to mitigate their emissions of greenhouse gases like carbon dioxide (CO2). The transition from economies driven by energy and chemicals derived from fossil fuel feedstocks to cleaner alternative fuels and technologies are met with great challenges. In the field of fuel and chemical production specifically, the transformation of carbon monoxide (CO) and CO2, produced through alternative technologies, to value added chemical products require catalysts that are active, selective, and stable. Current research efforts have focused on heavy characterization of catalysts in attempts of establishing a structure-activity correlation to help design and engineer the catalyst of the future. This thesis will focus on the design and characterization of two supported transition metal phosphide (TMP) catalysts, molybdenum phosphide (MoP) and ruthenium phosphide (RuP), and a bimetallic nickel iron (NiFe) catalyst. The first TMP, MoP, was specifically designed and optimized for the higher alcohol synthesis (HAS) reaction from synthesis gas (syngas) (CO/H2). Higher alcohols are defined as an alcohol group containing two or more carbon atoms., like ethanol. Through a systematic design approach, the optimal amount of potassium (K) promoter, P and Mo was determined and synthesized on three different supports: amorphous silica (SiO2), ordered silica (SBA-15), and mesoporous carbon (C). The different combinations led to contrasting catalytic performance with respect the HAS activity. The second TMP, RuP, was designed and optimized for the methanol synthesis (MS) reaction. Ru catalysts are known as Fischer-Tropsch synthesis (FTS) catalysts as they selectively produce hydrocarbons. This study was able to change the intrinsic catalytic nature of Ru through addition of P. Catalytic results showed that the presence of P transformed the Ru FTS catalyst to a MS catalyst. The NiFe catalyst was tested for the ethane dehydrogenation reaction, in which the essential feedstock chemical ethylene is produced. This catalyst was tested for direct ethane dehydrogenation, in which only ethane is fed to the reactor along with H2 to mitigate coking, and oxidative ethane dehydrogenation, where CO2 is fed to promote the reacting and mitigate coking. The catalysts were also synthesized on two different supports, SiO2 and C, to quantify support effects. The overall goal of these studies was to determine the influence that addition of promoters, like K, phosphides, and secondary metals have on catalytic properties and how we might use that to design catalysts with improved activity, selectivity, and stability.
Download or read book Bimetallic Catalysts written by John H. Sinfelt and published by Wiley-Interscience. This book was released on 1983-09-29 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents an account of the research on bimetallic catalysts. Focuses attention on the possibility of influencing the selectivity of chemical transformations on metal surfaces and preparing metal alloys in a highly dispersed state. Covers the validation and elucidation of the bimetallic cluster concept. Includes figures and tables.
Download or read book Zeolites and Mesoporous Materials at the Dawn of the 21st Century written by A. Galarneau and published by Elsevier. This book was released on 2001-08-13 with total page 525 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Zeolites and Mesporous Materials at the Dawn of the 21st Century Proceedings are the expression of the oral and poster communications which where presented during the 13th International Zeolite Conference (IZC). They are subdivided into 32 thematic sessions starting from the genesis of materials to their applications through their characterisation. The paper volume contains the full texts of the 5 plenary and 6 keynote lectures and informative summaries of 150 oral and 540 poster presentations. These contributions have been selected among the 903 submissions received from a total of 57 countries! In order to gather all the communications in a handy document, the full texts of oral and poster presentations are available in CD-ROM. Besides the fields of zeolite science always represented at IZC (synthesis, characterisation, catalysis, etc¿), some subjects strengthened their position (mesoporous materials, theory and modelling), new areas emerge (advanced materials, environmental and life sciences) and older ones regain interest (natural zeolites). The understanding and development of the unique properties of porous materials relies on a unique blend of multidisciplinary knowledge: material science, with the implication of organic and colloid chemistry, to prepare micro- and mesoporous materials, surface and adsorption science sustained by theory and modelling to understand the peculiar behaviour of molecules in confined systems, special branches of catalysis, physics, chemical engineering and life science to design novel applications. The gathering of these elements is at the basis of a fruitful and evolutionary zeolite science, as it is hopefully reflected by these proceedings.
Download or read book Ceria Supported Bimetallic Overlayer Catalysts to Aid in the Dry Reforming of Methane written by Teneil A. Schumacher and published by . This book was released on 2019 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dry reforming of methane (DRM) utilizes two abundantly available greenhouse gases, methane (CH4) and carbon dioxide (CO2), to produce industrially important syngas, hydrogen (H2) and carbon monoxide (CO), in unity. Syngas can be further treated to produce synthetic petroleum as fuels or chemicals. Most importantly, DRM serves as an important prototype reaction for sustainable chemical recycling and conversion by utilizing the major atmospheric pollutants, CH4 and CO2. It is commonly accepted that in the DRM reaction mechanism, CH4 and CO2 activate on the metal and support, respectively. Thus, the interface between the metal and the metal oxide support is also important as it provides sites to complete the reaction. Supported noble metals, such as palladium, are highly active toward the DRM reaction at high temperatures and are more resistant to carbon formation than other transition metals. However, these elements are costly for practical applications. While nickel proves to be economically favorable, deposited carbon species can accumulate on the metal which leads to loss of active sites. Furthermore, Ni is subject to sintering which also causes rapid deactivation during DRM. Previous research has shown that alloying Ni with Pd will increase catalytic activity and enhance stability against carbon formation. However, the strong Pd binding, which is required to activate CH4, also results in Pd binding too strongly to the CO and H2 products. This results in Pd surface sites being blocked and a decrease in catalytic activity. Therefore, the current global challenge for DRM is to develop thermally stable and active catalysts which can show good resistance to deactivation while minimizing use of expensive metals. Computational and experimental literature has shown that by synthesizing an overlayer of Pd on Ni (Ni@Pd), the coordination of metal atomic orbitals on the surface of a catalyst can increase. By increasing orbital coordination, the d-band center shifts down and the energy band widens. This results in a decrease of binding strength. By synthesizing a Ni@Pd overlayer, the binding strength of the overlayer metal, Pd, can be controllably decreased. By decreasing the binding strength to reactants and products, the catalyst design can then increase catalytic activity and enhance stability against carbon formation. Moreover, ceria supports provide a solution to improve the stability and catalytic performance of metal catalysts. Due to its unique redox properties, ceria may act as the active phase and remove carbon deposits on the metal by the oxidation of surface carbon to CO and prevent metal deactivation. A strong metal-support interaction between the metal and ceria can modify the structure and electronic properties of active metals which could improve the performance of metal-ceria systems. Due to ceria’s unique redox properties and oxygen storage capacities, it can better anchor the base metal as small clusters and inhibit coke formation. Furthermore, the introduction of the metal dopant, Ti, into ceria could promote its redox properties as well as enhance its thermal stability at high temperatures.
Download or read book Engineering Solutions for CO2 Conversion written by Tomas Ramirez Reina and published by John Wiley & Sons. This book was released on 2021-07-19 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive guide that offers a review of the current technologies that tackle CO2 emissions The race to reduce CO2 emissions continues to be an urgent global challenge. "Engineering Solutions for CO2 Conversion" offers a thorough guide to the most current technologies designed to mitigate CO2 emissions ranging from CO2 capture to CO2 utilization approaches. With contributions from an international panel representing a wide range of expertise, this book contains a multidisciplinary toolkit that covers the myriad aspects of CO2 conversion strategies. Comprehensive in scope, it explores the chemical, physical, engineering and economical facets of CO2 conversion. "Engineering Solutions for CO2 Conversion" explores a broad range of topics including linking CFD and process simulations, membranes technologies for efficient CO2 capture-conversion, biogas sweetening technologies, plasma-assisted conversion of CO2, and much more. This important resource: * Addresses a pressing concern of global environmental damage, caused by the greenhouse gases emissions from fossil fuels * Contains a review of the most current developments on the various aspects of CO2 capture and utilization strategies * Incldues information on chemical, physical, engineering and economical facets of CO2 capture and utilization * Offers in-depth insight into materials design, processing characterization, and computer modeling with respect to CO2 capture and conversion Written for catalytic chemists, electrochemists, process engineers, chemical engineers, chemists in industry, photochemists, environmental chemists, theoretical chemists, environmental officers, "Engineering Solutions for CO2 Conversion" provides the most current and expert information on the many aspects and challenges of CO2 conversion.
Download or read book Catalysis An Integrated Approach written by R.A. van Santen and published by Elsevier. This book was released on 2000-09-26 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book concentrates on industrially relevant reactions which are catalyzed by heterogeneous and homogeneous catalysts. Homogeneous catalysis by metal complexes is treated jointly with heterogeneous catalysis using metallic and non-metallic solids. In both areas the high degree of sophistication of spectroscopic techniques and theoretical modelling has led to an enormous increase in our understanding at the molecular level. This holds for the kinetics of the reactions and the reactivities of the catalysts, as well as for the syntheses of the catalytic materials. The development of catalysis science since the first edition of this book has necessitated a thorough revision, including special chapters on biocatalysis, catalyst characterization and adsorption methods. The multidisciplinary nature of catalysis is reflected in the choice of a novel combination of basic disciplines which will be refreshing and inspiring to readers.
Download or read book Metal Oxides in Heterogeneous Catalysis written by Jacques C. Vedrine and published by Elsevier. This book was released on 2018-01-11 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal Oxides in Heterogeneous Catalysis is an overview of the past, present and future of heterogeneous catalysis using metal oxides catalysts. The book presents the historical, theoretical, and practical aspects of metal oxide-based heterogeneous catalysis. Metal Oxides in Heterogeneous Catalysis deals with fundamental information on heterogeneous catalysis, including reaction mechanisms and kinetics approaches.There is also a focus on the classification of metal oxides used as catalysts, preparation methods and touches on zeolites, mesoporous materials and Metal-organic frameworks (MOFs) in catalysis. It will touch on acid or base-type reactions, selective (partial) and total oxidation reactions, and enzymatic type reactions The book also touches heavily on the biomass applications of metal oxide catalysts and environmentally related/depollution reactions such as COVs elimination, DeNOx, and DeSOx. Finally, the book also deals with future trends and prospects in metal oxide-based heterogeneous catalysis. - Presents case studies in each chapter that provide a focus on the industrial applications - Includes fundamentals, key theories and practical applications of metal oxide-based heterogeneous catalysis in one comprehensive resource - Edited, and contributed, by leading experts who provide perspectives on synthesis, characterization and applications
