In this book, expert authors describe advanced solar photon conversion approaches that promise highly efficient photovoltaic and photoelectrochemical cells with sophisticated architectures on the one hand, and plastic photovoltaic coatings that are inexpensive enough to be disposable on the other. Their leitmotifs include light-induced exciton generation, junction architectures that lead to efficient exciton dissociation, and charge collection by percolation through mesoscale phases. Photocatalysis is closely related to photoelectrochemistry, and the fundamentals of both disciplines are covered in this volume.
In this book, expert authors describe advanced solar photon conversion approaches that promise highly efficient photovoltaic and photoelectrochemical cells with sophisticated architectures on the one hand, and plastic photovoltaic coatings that are inexpensive enough to be disposable on the other. Their leitmotifs include light-induced exciton generation, junction architectures that lead to efficient exciton dissociation, and charge collection by percolation through mesoscale phases. Photocatalysis is closely related to photoelectrochemistry, and the fundamentals of both disciplines are covered in this volume./a
There has been a resurgence of interest in light-induced water splitting as the search for storable carbon neutral energy becomes more urgent. Although the history of the basic idea dates back more than four decades, efficient, economical and stable integrated devices have yet to be realized. In the continuing quest for such devices, the field of photoelectrochemistry is entering a new phase where the extraordinary interdisciplinary of the research and development efforts are opening new avenues. This aspect of current research effort is reflected in the chapters of this book, which encompass present thinking in the various disciplines such as materials science, photo-electrochemistry and interfaces that can contribute to realization of viable solar fuel generators. This book presents a blend of the background science and recent advances in the field of photoelectrochemical water splitting, and includes aspects that point towards medium to long term future realization. The content of the book goes beyond the more traditional approaches to the subject by including topics such as novel excitation energy processes that have only been realized so far in advanced photonics. The comprehensive overview of current activities and development horizons provided by the impressive collection of internationally renowned authors therefore represents a unique reflection of current thinking regarding water splitting by light.
The search for cleaner, cheaper, smaller and more efficient energy technologies has to a large extent been motivated by the development of new materials. The aim of this collection of articles is therefore to focus on what materials-based solutions can offer and show how the rationale design and improvement of their physical and chemical properties can lead to energy-production alternatives that have the potential to compete with existing technologies. In terms of alternative means to generate electricity that utilize renewable energy sources, the most dramatic breakthroughs for both mobile (i.e., transportation) and stationary applications are taking place in the fields of solar and fuel cells. And from an energy-storage perspective, exciting developments can be seen emerging from the fields of rechargeable batteries and hydrogen storage.
This outstanding thesis provides a wide-ranging overview of the growth of titanium dioxide thin films and its use in photo-electrochemicals such as water splitting. The context for water splitting is introduced with the theory of semiconductor-liquid junctions, which are dealt with in detail. In particular plasmonic enhancement of TiO2 by the addition of gold nanoparticles is considered in depth, including a thorough and critical review of the literature, which discusses the possible mechanisms that may be at work. Plasmonic enhancement is demonstrated with gold nanoparticles on Nb-doped TiO2. Finally, the use of temperature and pressure to control the phase and morphology of thin films grown by pulsed laser deposition is presented.
With the ever-increasing demand for energy worldwide, nations are looking for suitable options to solve the energy crisis, a matter of serious global concern. Many nations around the world are investing huge capital in the quest for sustainable energy sources. Fossil fuels are very limited, and their utilization comes with a number of harmful effects on human health and environment. This book addresses the energy challenge by discussing the various aspects of design, exploitation, and applications of green nanomaterials in energy devices—for energy efficiency, energy conversion, energy storage, and energy saving. The book also addresses the limitations that currently exist and how green nanomaterials can be the utilized as a future prospect towards a sustainable economy. The book emphasizes the importance and different modes of synthesis of nanomaterials, with detailed emphasis on green nanomaterials. Energy efficiency and environmental impact of the utilization of green nanomaterials as energy conversion devices are a major focus of the book. Key features: Addresses the global energy crisis and presents a picture of depleting resources Highlights the importance of nanomaterials and efficient utilization Explains green synthesis of nanomaterials Discusses the utilization of green nanomaterials for energy conversion Looks at green nanomaterials towards a sustainable economy Discusses the existing challenges and limitations, with prospects of using green nanomaterials in energy conversion devices This volume will be a boon for engineers (mechanical, electrical, chemical, etc.), nanotechnologists, biologists, economists, researchers, scientists, and others who are called to address solutions to the energy crises with green nanomaterials.
This book outlines many of the techniques involved in materials development and characterization for photoelectrochemical (PEC) – for example, proper metrics for describing material performance, how to assemble testing cells and prepare materials for assessment of their properties, and how to perform the experimental measurements needed to achieve reliable results towards better scientific understanding. For each technique, proper procedure, benefits, limitations, and data interpretation are discussed. Consolidating this information in a short, accessible, and easy to read reference guide will allow researchers to more rapidly immerse themselves into PEC research and also better compare their results against those of other researchers to better advance materials development. This book serves as a “how-to” guide for researchers engaged in or interested in engaging in the field of photoelectrochemical (PEC) water splitting. PEC water splitting is a rapidly growing field of research in which the goal is to develop materials which can absorb the energy from sunlight to drive electrochemical hydrogen production from the splitting of water. The substantial complexity in the scientific understanding and experimental protocols needed to sufficiently pursue accurate and reliable materials development means that a large need exists to consolidate and standardize the most common methods utilized by researchers in this field.
Photoelectrochemical processes due to the symbiosis of photochemical and electrochemical processes result in unique reaction pathways and products. This technique catalysed by nanomaterials is extensively used to harness sunlight for production of fuels and chemical feedstocks. This book explains the basic concepts of photoelectrochemistry as well as their application in the generation of solar fuels from water, CO2 and N2 as feedstocks. It also contains standard methodologies and benchmarks of fuel production including current state of the art in nanocatalysts as well as their mechanism of action. This book: Explores fundamentals and real-time applications of photoelectrochemistry in fuel generation Reviews basic theory and best-known catalysts and best conditions/processes for fuel generation in each of the chapters Covers standard methodologies, processes, and limitations for large-scale applications Focusses on sustainable production of fuels from renewable energy and resources This book aims at graduate students/researchers in chemical, energy and materials engineering.
Conversion of Water and CO2 to Fuels usingSolar Energy Comprehensive Resource for Understanding the Emerging Solar Technologies for Hydrogen Generation via Water Splitting and Carbon-based Fuel Production via CO2 Recycling Fossil fuel burning is the primary source of carbon in the atmosphere. The realization that such burning can harm the life on our planet, has led to a surge in research activities that focus on the development of alternative strategies for energy conversion. Fuel generation using solar energy is one of the most promising approaches that has received widespread attention. The fuels produced using sunlight are commonly referred to as “solar fuels.” This book provides researchers interested in solar fuel generation a comprehensive understanding of the emerging solar technologies for hydrogen generation via water splitting and carbon-based fuel production via CO2 recycling. The book presents the fundamental science, technologies, techno-economic analysis, and most importantly, the materials that are being explored to establish artificial methods of fuel production using solar energy. For the rapid advancement of the field, it is necessary for researchers, particularly for those who are new to the field, to have clear knowledge of various materials studied so far and their performance. For this reason, almost half of the book is dedicated to the discussions on materials and properties. Key topics discussed in the book include: Photocatalytic/photoelectrochemical processes that use semiconductor photocatalysts, including both ceramic and non-ceramic materials Photovoltaic assisted electrochemical processes Solar thermochemical processes Molecular photosynthesis Researchers and professionals in the fields of energy and materials and closely related science and engineering disciplines could use this book to aquire clear insights on both mainstream solar fuel technologies and those in the developmental stages.
Solar energy is available all over the world in different intensities. Theoretically, the solar energy available on the surface of the earth is enough to support the energy requirements of the entire planet. However, in reality, progress and development of solar science and technology depends to a large extent on human desires and needs. This is due to the various barriers to overcome and to deal with the economics of practical utilization of solar energy. This book introduces the rapid development and progress in the field of solar energy applications for science and technology: the advancement in the field of biological processes & chemical processes; electricity production; and mechanical operations & building operations enhanced by solar energy. The volume covers bio-hydrogen production and other biological processes related to solar energy; chemical processes for the production of hydrogen from water and other endothermic processes using solar energy; the development of thermo-electric production through solar energy; the development of solar ponds for electric energy production; and the mechanical operation with solar energy; the building operation with solar energy optimization and urban planning. This book is an invaluable resource for scientists who need the scientific and technological knowledge of the wide coverage of solar energy sciences and engineering applications. This will further encourage researchers, scientists, engineers and students to stimulate the use of solar energy as an alternative energy source.
