Katalyse

This brief is a concise guide that explores the theory and practical aspects of improving enantioselectivity in enzymatic kinetic resolution, with a specific focus on the role of hydrolases in this process. Enzymatic kinetic resolution is a valuable technique for obtaining enantiopure compounds, and hydrolases are highlighted as a crucial class of enzymes widely used in industries for chiral synthesis involving kinetic resolution. The book emphasizes the importance of tuning and optimizing the enzymatic kinetic resolution process to achieve the highest possible enantiomeric excess in the final product or starting material while maintaining the desired yield. Through illustrative examples, the text aims to make the concept accessible and appealing to graduate students, researchers, and young organic chemists seeking to incorporate hydrolases in their stereoselective synthesis endeavors.

This book describes a detailed multi-scale approach integrating nano- (active site), meso- (porous catalyst architecture) and macroscale (reactor) efforts, to address the challenges of producing a better epoxidation catalyst. It contains an in-depth study of the design and synthesis of gold nanoparticles and their application as a catalyst for direct gas phase propylene epoxidation. "e;Direct"e; means using only hydrogen and oxygen in one step, which is key for sustainable manufacturing, as opposed to commercialised, more complex production routes requiring multiple steps, or integration with another chemical plant. The insights gained can be used for rational design for stable and selective catalysts for other reactions. It also details the step-by-step process to build an epoxidation reactor system with a focus on safety aspects, which can be used as a guidebook for undergraduate and graduate students in chemical engineering. Beyond heterogeneous catalysis, the new, easily accomplished methodology for synthesising atomically precise nanoparticles is shown to be relevant to electrocatalysis and to healthcare applications, such as anti-microbial surfaces.This book will be of interest to researchers, engineers and experts in the related areas of chemical engineering, chemistry, material science and electrochemistry.

This contributed volume provides a critical review of research in the field of Electrochemical Promotion of Catalysis (EPOC). It presents recent developments during the past decade that have led to a better understanding of the field and towards applications of the EPOC concept. The chapters focus on the implementation of EPOC for developing sinter-resistant catalysts, catalysts for hydrogen production, ammonia production and carbon dioxide valorization. The book also highlights the developments towards electropromoted dispersed catalysts and for self-sustained electrochemical promotion which are currently expanding. This authoritative analysis of EPOC is useful for various scientific communities working at the interface of heterogeneous catalysis, solid state electrochemistry and materials science. It is of particular interest to groups whose research focuses on developments towards a better and more sustainable future.

This book covers the remarkable progress in the field of electrospun nanofibrous materials synthesis that has been made in recent years for clean water production. The goal is to offer comprehensive and substantial contents in each chapter, entailing the electrospinning principle, novel materials and methods, properties, characterization, and applications, such as adsorption, catalysis, and membranes. The book is instrumental in terms of showing the scale-up production of desired fibers that ensure the control of the structure¿properties relationship for developing effective water treatment technologies. Every chapter ends with a special section for highlighting research challenges and breakthroughs, so that scientists can explore these opportunities and discover new directions for future developments. Material scientists, nanotechnologists, chemists, engineers, water specialists, and environmentalists will be inspired by the information on electrospun nanofibrous materials tobe found in the book. The wide variety of new ideas and recommended future reading will encourage early-career scientists working in this field to design new experiments and practices. The book is useful for college and university-level students enrolled in project courses in materials science and related fields.

This volume presents recent progress on 3d base metal catalyzed C-C cross coupling reactions. The contributions provide detailed discussions on the use of cheap metal catalysts such as Cr, Mn, Fe, Co, Ni, Cu, and Zn to construct Csp2-Csp2, Csp2-Csp3 and Csp3-Csp3 bonds with a variety of substrates. These non-noble metal catalyst have many advantages such as being inexpensive, having low toxicity and are environmentally benign. Therefore the use of cheap metal catalysts in organic synthesis has gained much attention in efforts to develop more sustainable synthetic green chemistry. Each chapter is written by international experts in the field and is a great resource for students, researchers and chemists working in industry to gain an overview on the latest developments.

Advances in Microwave-assisted Heterogeneous Catalysis begins with the basics of microwave heating and the role of microwaves in heterogeneous catalysis before discussing the mechanisms and specific applications.

This book offers a comprehensive review of the latest developments, challenges and trends in C1-based (one-carbon based) bioproduction, and it presents an authoritative account of one-carbon compounds as promising alternative microbial feedstocks. The book starts with a perspective on the future of C1 compounds as alternative feedstocks for microbial growth, and their vital role in the establishment of a sustainable circular carbon economy, followed by several chapters in which expert contributors discuss about the recent strategies and address key challenges regarding one or more C1 feedstocks. The book covers topics such as acetogenic production from C1 feedstocks, aerobic carboxydotrophic bacteria potential in industrial biotechnology, bioconversion of methane to value-added compounds, combination of electrochemistry and biology to convert C1 compounds, and bioprocesses based on C1-mixotrophy. Particular attention is given to the current metabolic engineering, systems biology, and synthetic biology strategies applied in this field.

Co-edited by world-renowned scientists in the field of catalysis, this book contains the cutting-edge in situ and operando spectroscopy characterization techniques operating under reaction conditions to determine a materials¿ bulk, surface, and solution complex and their applications in the field of catalysis with emphasis on solid catalysts in powder form since such catalyst are relevant for industrial applications. The handbook covers from widely-used to cutting-edge techniques. The handbook is written for a broad audience of students and professionals who want to pursue the full capabilities available by the current state-of-the-art in characterization to fully understand how their catalysts really operate and guide the rational design of advanced catalysts. Individuals involved in catalysis research will be interested in this handbook because it contains a catalogue of cutting-edge methods employed in characterization of catalysts. These techniques find wide use in applications such as petroleum refining, chemical manufacture, natural gas conversion, pollution control, transportation, power generation, pharmaceuticals and food processing. fdsfds

This book explores the modification of various synthesis processes to enhance the photocatalytic activity in varied applications in the fields of environmental remediation and energy production. It outlines the enhancement of photocatalytic activity via alloys synthesis, thin film coatings, electro-spun nanofibers and 3D printed photocatalysts. The book further states the diverse applications of materials for degrading organic pollutants and airborne pathogens, improving indoor air quality and as a potential antimicrobial agent. The application of photocatalysts in green organic synthesis, biomedical field and in hydrogen evolution are also presented in the book. It covers theoretical studies of photocatalytic material and conversion of CO2 to value added chemical feed stocks. The book is of relevance to researchers in academia and industry alike in the fields of material science, environmental science & technology, photocatalytic applications andin energy generation and conversion.

This book explores the potential of solid oxide electrolysis cells (SOEC) in the field of hydrogen production. It describes this technology in detail, including fundamentals, state-of-the-art the technology, materials development, current limitations, recent trends and industrial applications. It clarifies SOECs role in decarbonizing the energy sector, drawing on contributions from experts in the field.

This volume brings together internationally leading researchers in the fields of synthesis, materials, and catalysis, particularly involving systems where non-covalent interactions are a crucial factor.

This book highlights the state-of-the-art research and discovery in the use of MOFs in catalysis, highlighting the scope to which these novel materials have been incorporated by the community. It provides an exceptional insight into the strategies for the synthesis and functionalization of MOFs, their use as CO2 and chemical warfare agents capture, their role in bio-catalysis and applications in photocatalysis, asymmetric catalysis, nano-catalysis, etc. This book will also emphasize the challenges with previous signs of progress and way for further research, details relating to the current pioneering technology, and future perspectives with a multidisciplinary approach. Furthermore, it presents up-to-date information on the economics, toxicity, and regulations related to these novel materials.

This volume brings together internationally leading researchers interested in bi- and multimetallic nanoalloys to explore and exchange ideas on recent developments and future possibilities.

This book comprises a detailed overview on the role of photocatalysts for environmental remediation, hydrogen production and carbon dioxide reduction. Effective ways to enhance the photocatalytic activity of the material via doping, hybrid material, laser light and nanocomposites have been discussed in this book. The book also further elaborates the role of metal nanoparticles, rare earth doping, sensitizers, surface oxygen vacancy, interface engineering and band gap engineering for enhancing the photocatalytic activity. An approach to recover the photocatalytic material via immobilization is also presented. This book brings to light much of the recent research in the development of such semiconductor photocatalytic systems. The book will thus be of relevance to researchers in the field of: material science, environmental science & technology, photocatalytic applications, newer methods of energy generation & conversion and industrial applications. 

This book discusses how nanostructured materials play a key role in helping address environmental challenges. Employing nanostructured materials in catalysis can increase the efficient decomposition of toxic pollutants in air, water, and soil. This multidisciplinary book discusses the most promising nanostructured materials made-up of metals, metal oxides, metal chalcogenides, multi-metal oxides, carbon nanostructures, and hybrid materials that can address environmental remediation. It provides a well-referenced introduction to newcomers from allied disciplines and will be valuable to researchers in academia, industry, and government working on solutions to environmental problems.

Chemical Kinetics and Reaction Dynamics brings together the major facts and theories relating to the rates with which chemical reactions occur from both the macroscopic and microscopic point of view. This book helps the reader achieve a thorough understanding of the principles of chemical kinetics and includes: Detailed stereochemical discussions of reaction stepsClassical theory based calculations of state-to-state rate constantsA collection of matters on kinetics of various special reactions such as micellar catalysis, phase transfer catalysis, inhibition processes, oscillatory reactions, solid-state reactions, and polymerization reactions at a single source.The growth of the chemical industry greatly depends on the application of chemical kinetics, catalysts and catalytic processes. This volume is therefore an invaluable resource for all academics, industrial researchers and students interested in kinetics, molecular reaction dynamics, and the mechanisms of chemical reactions.

Carbon-carbon and carbon-heteroatom bond-forming reactions are the backbone of synthetic organic chemistry. Scientists are constantly developing and improving these techniques in order to maximize the diversity of synthetically available molecules. These techniques must be developed in a sustainable manner in order to limit their environmental impact. This book highlights green bond forming reactions for bioactive scaffolds.

This book covers all basic topics of reaction kinetics, thus students do not need to refer to other resources to prepare for an undergraduate exam. It leads the reader into the topic starting from molecular level concepts and working towards the more macroscopic descriptions of kinetics, introducing the subject according to the state-of-the-art 21st century chemistry. A thorough treatment of formal kinetics of both elementary and complex reactions is based on actual practice, omitting many obsolete treatments of the subject. Mathematical operations are explained in enough detail so that even students that are less trained in calculus can easily follow and understand. Data treatment and statistical inference include modern - mostly numerical - methods widely used in applications. Experimental methods are described using basic technical details, however as techniques quickly change sophisticated devices are not the focus of this book. The emphasis lies on providingthe basic concepts which are important for students to understand. This book is suitable as essential reading for courses in bachelor and master chemistry programs and is also valuable as a reference or textbook for students of physics, biochemistry and environmental science.