Search results for: advanced-catalytic-materials

Advanced Catalytic Materials

Author : Ashutosh Tiwari
File Size : 50.77 MB
Format : PDF, ePub, Mobi
Download : 251
Read : 1197
Download »
The subject of advanced materials in catalysisbrings together recent advancements in materials synthesis and technologies to the design of novel and smart catalysts used in the field of catalysis. Nanomaterials in general show an important role in chemical processing as adsorbents, catalysts, catalyst supports and membranes, and form the basis of cutting-edge technology because of their unique structural and surface properties. Advanced Catalytic Materials is written by a distinguished group of contributors and the chapters provide comprehensive coverage of the current literature, up-to-date overviews of all aspects of advanced materials in catalysis, and present the skills needed for designing and synthesizing advanced materials. The book also showcases many topics concerning the fast-developing area of materials for catalysis and their emerging applications. The book is divided into three parts: Nanocatalysts – Architecture and Design; Organic and Inorganic Catalytic Transformations; and Functional Catalysis: Fundamentals and Applications. Specifically, the chapters discuss the following subjects: Environmental applications of multifunctional nanocomposite catalytic materials Transformation of nanostructured functional precursors using soft chemistry Graphenes in heterogeneous catalysis Gold nanoparticles-graphene composites material for catalytic application Hydrogen generation from chemical hydrides Ring-opening polymerization of poly(lactic acid) Catalytic performance of metal alkoxides Cycloaddition of CO2 and epoxides over reusable solid catalysts Biomass derived fine chemicals using catalytic metal bio-composites Homoleptic metal carbonyls in organic transformation Zeolites: smart materials for novel, efficient, and versatile catalysis Optimizing zeolitic catalysis for environmental remediation

Advanced Catalytic Materials Current Status and Future Progress

Author : José Manuel Domínguez-Esquivel
File Size : 54.3 MB
Format : PDF, Mobi
Download : 478
Read : 508
Download »
This book presents advances in computational methods, experimental synthesis, and advanced characterizations for novel catalytic materials. The authors show how catalytical materials can be used for various engineering oil & gas applications – mainly in low contaminants fuel production. All contributors, describe in detail novel experimental and theoretical techniques techniques and concepts for synthesis, evaluation and scaling catalytic materials and research advances in evaluation, extensive characterization and theoretical modeling using computer assisted methods and algorithms. Describes computational methods, experimental synthesis and advanced characterization for novel catalytic materials; Examines catalytic materials and corresponding engineering applications with a focus on low contaminant fuel production and derivatives; Covers the application of computer assisted quantum mechanical for fundamental understanding of electronic structure of molecular dimension catalytic materials.

Advanced Catalytic Materials Photocatalysis and Other Current Trends

Author :
File Size : 78.95 MB
Format : PDF, Mobi
Download : 336
Read : 447
Download »

Advanced Catalysts and Nanostructured Materials

Author : William R. Moser
File Size : 33.60 MB
Format : PDF, Kindle
Download : 302
Read : 1310
Download »
The time has come for an assessment of the most important techniques for the fabrication of advanced catalysts. Catalyst production alone is more than a billion dollar business each year, and the product value of chemical processes using advanced catalysts is a few trillion dollars annually. This book seeks to provide a modern, materials science account of the best and most current techniques for the synthesis of advanced catalytic materials. Until now, there has been no single book which contains a definitive and comprehensive description of the important technologies for catalyst synthesis within the context of modern materials science. Academic researchers both in the catalytic sciences and materials sciences must have the best synthesis technologies available to accomplish the preparation of solid-state materials of specific structure and morphology. Althugh the emphasis is on new synthetic techniques for catalytic applications, the bookpresents all of the important technologies for the fabrication of electronic and structural ceramics, and superconductors. Novel Techniques for Advanced Materials Nanostructured Materials Synthesis Mesoporous Molecular Sieves Pillared Clays Heteropoly Acids Nanostructured Supported Metal Catalysts Nanostructured Metal Oxide Catalysts and Materials Nanostructured Zeolite Materials Vapor Phase Materials Synthesis Sonochemical Materials Synthesis Aerosol Methods of Catalyst Synthesis Hydrodynamic Cavitational Techniques for Catalyst and Materials Synthesis Novel Sol-Gel Methods for Catalyst Synthesis Supercritical Methods for Materials Synthesis Liquid Crystal Techniques for Mesoporous Materials Micelle Techniques for Nanostructured Catalyst Preparation Fluidized Bed Techniques in Chemical Vapor Deposition Flame Methods of Advanced Catalyst Synthesis

Advanced Materials in Catalysis

Author : Frank Bolz
File Size : 50.25 MB
Format : PDF, Mobi
Download : 309
Read : 446
Download »
Advanced Materials in Catalysis is a collection of materials that discusses various catalysts. The book presents the physical and chemical properties that indicate that a particular class of materials may be of catalytic interest. The text first covers bimetallic catalysts, and then proceeds to examining the catalytic properties of compounds such as graphite intercalation compounds; oxides with the scheelite structure; and synthetic layered silicates and aluminosilicate. The book also covers reduction catalysts, biological catalysts, and monolithic catalyst supports. The selection will be of great use to students and practitioners of chemistry, particularly those who are involved in research studies that investigate materials problems in catalysis.

On the Dissolution of Platinum From Fundamental to Advanced Catalytic Materials

Author : Daniel John Seale Sandbeck
File Size : 79.79 MB
Format : PDF, Mobi
Download : 563
Read : 490
Download »

Advanced Catalytic Materials

Author :
File Size : 71.75 MB
Format : PDF
Download : 517
Read : 579
Download »

Advanced Catalytic Materials 1996

Author : Dick A. Nagaki
File Size : 36.19 MB
Format : PDF, ePub, Docs
Download : 250
Read : 957
Download »
Efforts to develop new, highly active and selective catalytic materials benefit significantly from the interface between materials science and catalysis. To that end, materials scientists, chemists, chemical engineers, physicists and theorists from around the world come together in this book to discuss not the application of known catalysts to new reactions, but rather to explore new catalytic materials. These new materials continue to yield improvements in the selectivity, energy efficiency, and reliability of refining, petrochemical and chemical processes. Catalysts are also increasingly used to solve environmental problems. All papers in the book were peer-reviewed and are grouped by topic. The focus moves from classes of materials to nanostructure control and modification, to synthesis strategies, to industrial applications and devices. Topics include: carbon; carbides and nitrides; oxides; mesoporous materials; monoliths, foams, films and membranes; synthesis and design; novel synthesis methods and industrial application and devices.

Advanced Catalytic Materials 1998

Author : Peter W. Lednor
File Size : 49.69 MB
Format : PDF, Docs
Download : 315
Read : 162
Download »
Progress in materials science and engineering continues to have a significant impact on the development of new or improved catalysts, in particular in the areas of synthesis, manufacture, characterization and shaping. Catalysts, in turn, are of crucial importance in increasing the selectivity and energy efficiency of the many conversion processes used in the oil refining, petrochemical, natural gas and fine-chemical industries. In addition, catalysts play an important role in solving environmental problems. This volume focuses on advanced materials for catalysis and provides a multidisciplinary forum for chemists, chemical engineers, materials scientists, physicists and theorists to present and discuss the results in the field. Emphasis is on advanced catalytic materials rather than the application of known materials to new reactions. Topics include: monoliths; nitrides; oxides; catalytic combustion; photocatalysis; theoretical studies; catalyst characterization; catalyst modifications and catalyst synthesis.

Synthesis and Properties of Advanced Catalytic Materials

Author : Enrique Iglesia
File Size : 84.26 MB
Format : PDF
Download : 784
Read : 931
Download »

Advanced Nanomaterials for Catalysis and Energy

Author : Vladislav A. Sadykov
File Size : 75.24 MB
Format : PDF, Kindle
Download : 604
Read : 1184
Download »
Advanced Nanomaterials for Catalysis and Energy: Synthesis, Characterization and Applications outlines new approaches to the synthesis of nanomaterials (synthesis in flow conditions, laser electrodispersion of single metals or alloys on carbon or oxide supports, mechanochemistry, sol-gel routes, etc.) to provide systems with a narrow particle size distribution, controlled metal-support interaction and nanocomposites with uniform spatial distribution of domains of different phases, even in dense sintered materials. Methods for characterization of real structure and surface properties of nanomaterials are discussed, including synchrotron radiation diffraction and X-ray photoelectron spectroscopy studies, neutronography, transmission/scanning electron microscopy with elemental analysis, and more. The book covers the effect of nanosystems' composition, bulk and surface properties, metal-support interaction, particle size and morphology, deposition density, etc. on their functional properties (transport features, catalytic activity and reaction mechanism). Finally, it includes examples of various developed nanostructured solid electrolytes and mixed ionic-electronic conductors as materials in solid oxide fuel cells and asymmetric supported membranes for oxygen and hydrogen separation. Outlines synthetic and characterization methods for nanocatalysts Relates nanocatalysts' properties to their specific applications Proposes optimization methods aiming at specific applications

Advanced Catalytic Materials 1996

Author :
File Size : 52.27 MB
Format : PDF, Docs
Download : 217
Read : 378
Download »

Advanced Catalytic Materials

Author : Noreña Luis
File Size : 65.19 MB
Format : PDF, Kindle
Download : 304
Read : 588
Download »
Todays chemical industry processes worldwide largely depend on catalytic reactions and the desirable future evolution of this industry toward more selective products, more environmentally friendly products, more energy-efficient processes, a smaller use of hazardous reagents, and a better use of raw materials also largely involves the development of better catalysts and, specifically, purposely designed catalytic materials. The careful study and development of the new-generation catalysts involve relatively large groups of specialists in universities, research centers, and industries, joining forces from different scientific and technical disciplines. This book has put together recent, state-of-the-art topics on current trends in catalytic materials and consists of 16 chapters.

Special Issue on Selected Contributions of the 8th International Symposium on Advanced Catalytic Materials Cancun Mexico August 17 20 2015

Author : José Manuel Domínguez
File Size : 20.23 MB
Format : PDF, ePub, Mobi
Download : 849
Read : 702
Download »

Hydrogen Absorbing Materials Catalytic Materials

Author : Yoshihiko Morooka
File Size : 38.48 MB
Format : PDF, Kindle
Download : 565
Read : 946
Download »

Synthesis Structural and Catalytic Properties of Advanced Catalyst Materials

Author : Stefan Marx
File Size : 61.63 MB
Format : PDF, ePub
Download : 628
Read : 657
Download »

Heterogeneous Catalysts

Author : Wey Yang Teoh
File Size : 50.64 MB
Format : PDF, ePub
Download : 311
Read : 391
Download »
Presents state-of-the-art knowledge of heterogeneous catalysts including new applications in energy and environmental fields This book focuses on emerging techniques in heterogeneous catalysis, from new methodology for catalysts design and synthesis, surface studies and operando spectroscopies, ab initio techniques, to critical catalytic systems as relevant to energy and the environment. It provides the vision of addressing the foreseeable knowledge gap unfilled by classical knowledge in the field. Heterogeneous Catalysts: Advanced Design, Characterization and Applications begins with an overview on the evolution in catalysts synthesis and introduces readers to facets engineering on catalysts; electrochemical synthesis of nanostructured catalytic thin films; and bandgap engineering of semiconductor photocatalysts. Next, it examines how we are gaining a more precise understanding of catalytic events and materials under working conditions. It covers bridging pressure gap in surface catalytic studies; tomography in catalysts design; and resolving catalyst performance at nanoscale via fluorescence microscopy. Quantum approaches to predicting molecular reactions on catalytic surfaces follows that, along with chapters on Density Functional Theory in heterogeneous catalysis; first principles simulation of electrified interfaces in electrochemistry; and high-throughput computational design of novel catalytic materials. The book also discusses embracing the energy and environmental challenges of the 21st century through heterogeneous catalysis and much more. Presents recent developments in heterogeneous catalysis with emphasis on new fundamentals and emerging techniques Offers a comprehensive look at the important aspects of heterogeneous catalysis Provides an applications-oriented, bottoms-up approach to a high-interest subject that plays a vital role in industry and is widely applied in areas related to energy and environment Heterogeneous Catalysts: Advanced Design, Characterization and Applications is an important book for catalytic chemists, materials scientists, surface chemists, physical chemists, inorganic chemists, chemical engineers, and other professionals working in the chemical industry.

Advances in New Catalytic Materials

Author : Jin An Wang
File Size : 87.14 MB
Format : PDF, Docs
Download : 883
Read : 433
Download »
Volume is indexed by Thomson Reuters CPCI-S (WoS). The search for new catalytic materials has grown into a very important multidisciplinary research field; including novel strategies for catalytic materials synthesis, control and manipulation of solid-state chemistry and surfaces, innovative characterization techniques and rapidly expanding catalysis applications, and has thus attracted the attention of large numbers of scientists and engineers all over the world. This special volume on Advanced Materials Research comprises new contributions covering aspects of catalyst preparation and characterization, as well as various applications of catalysis.

En Route Towards Advanced Catalyst Materials for the Electrocatalytic Water Splitting Reaction

Author : Marc Ledendecker
File Size : 78.4 MB
Format : PDF, Kindle
Download : 775
Read : 189
Download »
The thesis on hand deals with the development of new types of catalysts based on pristine metals and ceramic materials and their application as catalysts for the electrocatalytic water splitting reaction. In order to breathe life into this technology, cost-efficient, stable and efficient catalysts are imploringly desired. In this manner, the preparation of Mn-, N-, S-, P-, and C-containing nickel materials has been investigated together with the theoretical and electrochemical elucidation of their activity towards the hydrogen (and oxygen) evolution reaction. The Sabatier principle has been used as the principal guideline towards successful tuning of catalytic sites. Furthermore, two pathways have been chosen to ameliorate the electrocatalytic performance, namely, the direct improvement of intrinsic properties through appropriate material selection and secondly the increase of surface area of the catalytic material with an increased amount of active sites. In this manner, bringing materials with optimized hydrogen adsorption free energy onto high surface area support, catalytic performances approaching the golden standards of noble metals were feasible. Despite varying applied synthesis strategies (wet chemistry in organic solvents, ionothermal reaction, gas phase reaction), one goal has been systematically pursued: to understand the driving mechanism of the growth. Moreover, deeper understanding of inherent properties and kinetic parameters of the catalytic materials has been gained.

Using Advanced Electron Microscopy for the Characterization of Catalytic Materials

Author : William D. Pyrz
File Size : 77.9 MB
Format : PDF, Docs
Download : 427
Read : 686
Download »
Catalysis will continue to be vitally important to the advancement and sustainability of industrialized societies. Unfortunately, the petroleum-based resources that currently fuel the energy and consumer product needs of an advancing society are becoming increasingly difficult and expensive to extract as supplies diminish and the quality of sources degrade. Therefore, the development of sustainable energy sources and the improvement of the carbon efficiency of existing chemical processes are critical. Further challenges require that these initiatives are accomplished in an environmentally friendly fashion since the effects of carbon-based emissions are proving to be a serious threat to global climate stability. In this dissertation, materials being developed for sustainable energy and process improvement initiatives are studied. Our approach is to use materials characterization, namely advanced electron microscopy, to analyze the targeted systems at the nano- or Ångstrom-scale with the goal of developing useful relationships between structure, composition, crystalline order, morphology, and catalytic performance. One area of interest is the complex Mo-V-M-O (M=Te, Sb, Ta, Nb) oxide system currently being developed for the selective oxidation/ammoxidation of propane to acrylic acid or acrylonitrile, respectively. Currently, the production of acrylic acid and acrylonitrile rely on propylene-based processes, yet significant cost savings could be realized if the olefin-based feeds could be replaced by paraffin-based ones. The major challenge preventing this feedstock replacement is the development of a suitable paraffin-activating catalyst. Currently, the best candidate is the Mo-V-Nb-Te-O complex oxide catalyst that is composed of two majority phases that are commonly referred to as M1 and M2. However, there is a limited understanding of the roles of each component with respect to how they contribute to catalyst stability and the reaction mechanism. Aberration-corrected electron microscopy was used to systematically examine, atomic column by atomic column, the effect of elemental substitution on the long-range crystalline order, atomic coordinates, and site occupancies of the various formulations such that trends could be developed linking these properties to catalytic yields. To accomplish this task, an algorithm was developed that enabled the direct extraction of atomic coordinates and site occupancies from high-angle annular dark-field (HAADF) images to within 1% and 15% uncertainty, respectively. Furthermore, this general method could be applied to various crystalline systems and may dramatically improve the quality of initial structural models used in Rietveld refinements. Improvement in the quality of starting models may increase the structural and chemical complexity of inorganic structures that can be solved by using "powder methods" alone. In addition to the development of these trends, HAADF analyses also revealed the presence of coherent compositional miscibility gaps, rotational twin domains, and structural intergrowths in the complex Mo-V-M-O oxide system. Other catalytic systems that are addressed in this dissertation include Pd, Ag, and bimetallic Pd-Ag catalysts for the selective hydrogenation of acetylene in excess ethylene, alkali and alkaline earth promoted Ru catalysts for the production of clean hydrogen through the decomposition of ammonia, the production of Pt nanoparticles using dendrimer templates, and Pt-Re bimetallic catalysts for the conversion of glycerol to hydrocarbons and syn gas. In each of these studies, electron microscopy was used as a complimentary tool to synthetic and reaction studies to better understand interactions between the nanoparticles and the support/template, to determine the effect of adding various promoters, or to understand the nanoscale structural and chemical changes associated with the formation of bimetallic nanoparticles. A final area addressed in this dissertation is the interaction between the electron beam and the specimen. In one particular study directed toward the characterization of Ni-Bi nanomaterials, it was discovered that exposure to an intense electron beam initiated particle fragmentation that led to the formation of a field of nanoparticles. Subsequent microscopy studies of the resulting nanoparticle field revealed bimetallic nanoparticles, core-shell structures, Ångstrom-scale atomic clusters, and individual atoms that decorated the surrounding carbon substrate. The identification of these structures along with the analysis of the parent material enabled the development of a fragmentation mechanism.