Solar Light Harvesting with Nanocrystalline Semiconductors

Solar Light Harvesting with Nanocrystalline Semiconductors PDF Author: Oleksandr Stroyuk
Publisher: Springer
ISBN: 3319688790
Category : Technology & Engineering
Languages : en
Pages : 404

Get Book Here

Book Description
This book explains the use of nanocrystalline semiconductors in the harvesting of energy from solar light. It introduces promising methodology and technology which may help to increase the efficiency of light harvesting – one of the major challenges on the way toward sustainable energy generation.The book starts with a general introduction to the photochemistry of semiconductor nanocrystals. In the introductory chapter, the author also provides a frank and critical discussion on perspectives and limitations of the photocatalytic processes for solar light conversion including a historical account on semiconductor photocatalysis. He discusses that (and also why) it is a long way from laboratory prototypes to real sustainable technologies.The following chapters outline the conversion of solar light energy in semiconductor nanophotocatalysis on the one hand, and to (electric) energy in nanocrystalline semiconductor-based solar cells on the other hand. Topics addressed include nanophotocatalytic hydrogen production, artificial photosynthesis, quantum-dot sensitized liquid-junction and bulk heterojunction solar cells. Perspectives and opportunities, but also bottlenecks and limitations are discussed and the novel systems compared with established technology, such as classical silicon solar cells. While readers in this way learn to understand the basics and get introduced to the current research in the field, the final chapter provides them with the necessary knowledge about methodology, both in synthesis and characterization of semiconductor nanophotocatalysts and semiconductor nanomaterials, including examples for the practice of photocatalytic experiments and the studies of semiconductor-based solar cells.

Solar Light Harvesting with Nanocrystalline Semiconductors

Solar Light Harvesting with Nanocrystalline Semiconductors PDF Author: Oleksandr Stroyuk
Publisher: Springer
ISBN: 3319688790
Category : Technology & Engineering
Languages : en
Pages : 404

Get Book Here

Book Description
This book explains the use of nanocrystalline semiconductors in the harvesting of energy from solar light. It introduces promising methodology and technology which may help to increase the efficiency of light harvesting – one of the major challenges on the way toward sustainable energy generation.The book starts with a general introduction to the photochemistry of semiconductor nanocrystals. In the introductory chapter, the author also provides a frank and critical discussion on perspectives and limitations of the photocatalytic processes for solar light conversion including a historical account on semiconductor photocatalysis. He discusses that (and also why) it is a long way from laboratory prototypes to real sustainable technologies.The following chapters outline the conversion of solar light energy in semiconductor nanophotocatalysis on the one hand, and to (electric) energy in nanocrystalline semiconductor-based solar cells on the other hand. Topics addressed include nanophotocatalytic hydrogen production, artificial photosynthesis, quantum-dot sensitized liquid-junction and bulk heterojunction solar cells. Perspectives and opportunities, but also bottlenecks and limitations are discussed and the novel systems compared with established technology, such as classical silicon solar cells. While readers in this way learn to understand the basics and get introduced to the current research in the field, the final chapter provides them with the necessary knowledge about methodology, both in synthesis and characterization of semiconductor nanophotocatalysts and semiconductor nanomaterials, including examples for the practice of photocatalytic experiments and the studies of semiconductor-based solar cells.

Photocalytic Coatings for Air-Purifying, Self-Cleaning and Antimicrobial Properties

Photocalytic Coatings for Air-Purifying, Self-Cleaning and Antimicrobial Properties PDF Author: Anibal Maury-Ramirez
Publisher: MDPI
ISBN: 3038421383
Category : Science
Languages : en
Pages : 213

Get Book Here

Book Description
This book is a printed edition of the Special Issue "Photocalytic Coatings for Air-Purifying, Self-Cleaning and Antimicrobial Properties" that was published in Coatings.

New and Future Developments in Catalysis

New and Future Developments in Catalysis PDF Author: Steven L Suib
Publisher: Newnes
ISBN: 0444538836
Category : Technology & Engineering
Languages : en
Pages : 659

Get Book Here

Book Description
New and Future Developments in Catalysis is a package of books that compile the latest ideas concerning alternate and renewable energy sources and the role that catalysis plays in converting new renewable feedstock into biofuels and biochemicals. Both homogeneous and heterogeneous catalysts and catalytic processes will be discussed in a unified and comprehensive approach. There will be extensive cross-referencing within all volumes.This volume presents a complete picture of all carbon dioxide (CO2) sources, outlines the environmental concerns regarding CO2, and critically reviews all current CO2 activation processes. Furthermore, the volume discusses all future developments and gives a critical economic analysis of the various processes. - Offers in-depth coverage of all catalytic topics of current interest and outlines future challenges and research areas - A clear and visual description of all parameters and conditions, enabling the reader to draw conclusions for a particular case - Outlines the catalytic processes applicable to energy generation and design of green processes

Heterogeneous Catalysis

Heterogeneous Catalysis PDF Author: Moises Romolos Cesario
Publisher: Elsevier
ISBN: 0323856322
Category : Technology & Engineering
Languages : en
Pages : 554

Get Book Here

Book Description
Heterogeneous Catalysis: Materials and Applications focuses on heterogeneous catalysis applied to the elimination of atmospheric pollutants as an alternative solution for producing clean energy and the valorization of chemical products. The book helps users understand the properties of catalytic materials and catalysis phenomena governing electrocatalytic/catalytic reactions, and – more specifically – the study of surface and interface chemistry. By clustering knowledge in these fields, the book makes information available to both the academic and industrial communities. Further, it shows how heterogeneous catalysis applications can be used to solve environmental problems and convert energy through electrocatalytic reactions and chemical valorization. Sections cover nanomaterials for heterogeneous catalysis, heterogeneous catalysis mechanisms, SOX adsorption, greenhouse gases conversion, reforming reactions for hydrogen production, valorization of hydrogen energy, energy conversion and biomass valorization. - Addresses topics of increasing interest to society such as the valorization of biomass, the use of polluting gases to produce value-added products, and the optimization of catalytic materials for water splitting, fuel cells, and other devices - Discusses pollutant adsorption by industrial fume desulphurization processes - Helps improve processes for obtaining chemicals using nonconventional technologies

Beyond Current Research Trends in CO2 Utilization

Beyond Current Research Trends in CO2 Utilization PDF Author: Michele Aresta
Publisher: Frontiers Media SA
ISBN: 2889746011
Category : Technology & Engineering
Languages : en
Pages : 192

Get Book Here

Book Description


Nanocasting

Nanocasting PDF Author: An-Hui Lu
Publisher: Royal Society of Chemistry
ISBN: 0854041885
Category : Science
Languages : en
Pages : 279

Get Book Here

Book Description
Nanostructured materials with tailored properties are regarded as a fundamental element in the development of future science and technology. Research is still ongoing into the nanosized construction elements required to create functional solids. The recently developed technique, nanocasting, has great advantage over others in terms of the synthesis of special nanostructured materials by the careful choice of suitable elements and nanoengineering steps. This new book summarizes the recent developments in nanocasting, including the principles of nanocasting, syntheses of novel nanostructured materials, characterization methods, detailed synthetic recipes and further possible development in this area. The book focuses on the synthesis of porous solids from the viewpoint of methodology and introduces the science of nanocasting from fundamental principles to their use in synthesis of various materials. It starts by outlining the principles of nanocasting, requirements to the templates and precursors and the tools needed to probe matter at the nanoscale level. It describes how to synthesize nano structured porous solids with defined characteristics and finally discusses the functionalization and application of porous solids. Special attention is given to new developments in this field and future perspectives. A useful appendix covering the detailed synthetic recipes of various templates including porous silica, porous carbon and colloidal spheres is included which will be invaluable to researchers wanting to follow and reproduce nanocast materials. Topics covered in the book include: * inorganic chemistry * organic chemistry * solution chemistry * sol-gel and interface science * acid-base equilibria * electrochemistry * biochemistry * confined synthesis The book gives readers not only an overview of nanocasting technology, but also sufficient information and knowledge for those wanting to prepare various nanostructured materials without needing to search the available literature.

Catalysis By Gold

Catalysis By Gold PDF Author: Geoffrey C Bond
Publisher: World Scientific
ISBN: 1908979852
Category : Science
Languages : en
Pages : 383

Get Book Here

Book Description
Gold has traditionally been regarded as inactive as a catalytic metal. However, the advent of nanoparticulate gold on high surface area oxide supports has demonstrated its high catalytic activity in many chemical reactions. Gold is active as a heterogeneous catalyst in both gas and liquid phases, and complexes catalyse reactions homogeneously in solution. Many of the reactions being studied will lead to new application areas for catalysis by gold in pollution control, chemical processing, sensors and fuel cell technology. This book describes the properties of gold, the methods for preparing gold catalysts and ways to characterise and use them effectively in reactions. The reaction mechanisms and reasons for the high activities are discussed and the applications for gold catalysis considered./a

Plasma Catalysis

Plasma Catalysis PDF Author: Annemie Bogaerts
Publisher: MDPI
ISBN: 3038977500
Category : Technology & Engineering
Languages : en
Pages : 248

Get Book Here

Book Description
Plasma catalysis is gaining increasing interest for various gas conversion applications, such as CO2 conversion into value-added chemicals and fuels, N2 fixation for the synthesis of NH3 or NOx, methane conversion into higher hydrocarbons or oxygenates. It is also widely used for air pollution control (e.g., VOC remediation). Plasma catalysis allows thermodynamically difficult reactions to proceed at ambient pressure and temperature, due to activation of the gas molecules by energetic electrons created in the plasma. However, plasma is very reactive but not selective, and thus a catalyst is needed to improve the selectivity. In spite of the growing interest in plasma catalysis, the underlying mechanisms of the (possible) synergy between plasma and catalyst are not yet fully understood. Indeed, plasma catalysis is quite complicated, as the plasma will affect the catalyst and vice versa. Moreover, due to the reactive plasma environment, the most suitable catalysts will probably be different from thermal catalysts. More research is needed to better understand the plasma–catalyst interactions, in order to further improve the applications.

Nanocatalysis

Nanocatalysis PDF Author: Vivek Polshettiwar
Publisher: John Wiley & Sons
ISBN: 111814886X
Category : Technology & Engineering
Languages : en
Pages : 755

Get Book Here

Book Description
Exhibiting both homogeneous and heterogeneous catalytic properties, nanocatalysts allow for rapid and selective chemical transformations, with the benefits of excellent product yield and ease of catalyst separation and recovery. This book reviews the catalytic performance and the synthesis and characterization of nanocatalysts, examining the current state of the art and pointing the way towards new avenues of research. Moreover, the authors discuss new and emerging applications of nanocatalysts and nanocatalysis, from pharmaceuticals to fine chemicals to renewable energy to biotransformations. Nanocatalysis features contributions from leading research groups around the world. These contributions reflect a thorough review of the current literature as well as the authors’ first-hand experience designing and synthesizing nanocatalysts and developing new applications for them. The book’s nineteen chapters offer a broad perspective, covering: Nanocatalysis for carbon-carbon and carbon-heteroatom coupling reactions Nanocatalysis for various organic transformations in fine chemical synthesis Nanocatalysis for oxidation, hydrogenation, and other related reactions Nanomaterial-based photocatalysis and biocatalysis Nanocatalysts to produce non-conventional energy such as hydrogen and biofuels Nanocatalysts and nano-biocatalysts in the chemical industry Readers will also learn about the latest spectroscopic and microscopy tools used in advanced characterization methods that shed new light on nanocatalysts and nanocatalysis. Moreover, the authors offer expert advice to help readers develop strategies to improve catalytic performance. Summarizing and reviewing all the most important advances in nanocatalysis over the last two decades, this book explains the many advantages of nanocatalysts over conventional homogeneous and heterogeneous catalysts, providing the information and guidance needed for designing green, sustainable catalytic processes.

Supported Catalysts and Their Applications

Supported Catalysts and Their Applications PDF Author: David C Sherrington
Publisher: Royal Society of Chemistry
ISBN: 1847551963
Category : Science
Languages : en
Pages : 282

Get Book Here

Book Description
The need to improve both the efficiency and environmental acceptability of industrial processes is driving the development of heterogeneous catalysts across the chemical industry, including commodity, specialty and fine chemicals and in pharmaceuticals and agrochemicals. Drawing on international research, Supported Catalysts and their Applications discusses aspects of the design, synthesis and application of solid supported reagents and catalysts, including supported reagents for multi-step organic synthesis; selectivity in oxidation catalysis; mesoporous molecular sieve catalysts; and the use of Zeolite Beta in organic reactions. In addition, the two discrete areas of heterogeneous catalysis (inorganic oxide materials and polymer-based catalysts) that were developing in parallel are now shown to be converging, which will be of great benefit to the whole field. Providing a snapshot of the state-of-the-art in this fast-moving field, this book will be welcomed by industrialists and researchers, particularly in the agrochemicals and pharmaceuticals industries.