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Further Volumes of the Series “Nanotechnology Innovation & Applications”

Axelos, M. A. V. and Van de Voorde, M. (eds.)

Nanotechnology in Agriculture and Food Science

2017

Print ISBN: 9783527339891

Cornier, J., Kwade, A., Owen, A., Van de Voorde, M. (eds.)

Pharmaceutical Nanotechnology

Innovation and Production

2017

Print ISBN: 9783527340545

Fermon, C. and Van de Voorde, M. (eds.)

Nanomagnetism

Applications and Perspectives

2017

Print ISBN: 9783527339853

Mansfield, E., Kaiser, D. L., Fujita, D., Van de Voorde, M. (eds.)

Metrology and Standardization for Nanotechnology

Protocols and Industrial Innovations

2017

Print ISBN: 9783527340392

Meyrueis, P., Sakoda, K., Van de Voorde, M. (eds.)

Micro- and Nanophotonic Technologies

2017

Print ISBN: 9783527340378

Müller, B. and Van de Voorde, M. (eds.)

Nanoscience and Nanotechnology for Human Health

2017

Print ISBN: 9783527338603

Puers, R., Baldi, L.,Van de Voorde, M., van Nooten, S. E. (eds.)

Nanoelectronics

Materials, Devices, Applications

2017

Print ISBN: 9783527340538

Sels, B. and Van de Voorde, M. (eds.)

Nanotechnology in Catalysis

Applications in the Chemical Industry, Energy Development, and Environment Protection

2017

Print ISBN: 9783527339143

Edited by Baldev Raj, Marcel Van de Voorde, and Yashwant Mahajan

Nanotechnology for Energy Sustainability

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Thanks to my wife for her patience with me spending many hours working on the book series through the nights and over weekends.
The assistance of my son Marc Philip related to the complex and large computer files with many sophisticated scientific figures is also greatly appreciated.

Marcel Van de Voorde

Series Editor Preface

Since years, nanoscience and nanotechnology have become particularly an important technology areas worldwide. As a result, there are many universities that offer courses as well as degrees in nanotechnology. Many governments including European institutions and research agencies have vast nanotechnology programmes and many companies file nanotechnology-related patents to protect their innovations. In short, nanoscience is a hot topic!

Nanoscience started in the physics field with electronics as a forerunner, quickly followed by the chemical and pharmacy industries. Today, nanotechnology finds interests in all branches of research and industry worldwide. In addition, governments and consumers are also keen to follow the developments, particularly from a safety and security point of view.

This books series fills the gap between books that are available on various specific topics and the encyclopedias on nanoscience. This well-selected series of books consists of volumes that are all edited by experts in the field from all over the world and assemble top-class contributions. The topical scope of the book is broad, ranging from nanoelectronics and nanocatalysis to nanometrology. Common to all the books in the series is that they represent top-notch research and are highly application-oriented, innovative, and relevant for industry. Finally they collect a valuable source of information on safety aspects for governments, consumer agencies and the society.

The titles of the volumes in the series are as follows:

The book series appeals to a wide range of readers with backgrounds in physics, chemistry, biology, and medicine, from students at universities to scientists at institutes, in industrial companies and government agencies and ministries.

Ever since nanoscience was introduced many years ago, it has greatly changed our lives – and will continue to do so!

March 2016 Marcel Van de Voorde

About the Series Editor

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Marcel Van de Voorde, Prof. Dr. ir. Ing. Dr. h.c., has 40 years' experience in European Research Organisations, including CERN-Geneva and the European Commission, with 10 years at the Max Planck Institute for Metals Research, Stuttgart. For many years, he was involved in research and research strategies, policy, and management, especially in European research institutions.

He has been a member of many Research Councils and Governing Boards of research institutions across Europe, the United States, and Japan. In addition to his Professorship at the University of Technology in Delft, the Netherlands, he holds multiple visiting professorships in Europe and worldwide. He holds a doctor honoris causa and various honorary professorships.

He is a senator of the European Academy for Sciences and Arts, Salzburg, and Fellow of the World Academy for Sciences. He is a member of the Science Council of the French Senate/National Assembly in Paris. He has also provided executive advisory services to presidents, ministers of science policy, rectors of Universities, and CEOs of technology institutions, for example, to the president and CEO of IMEC, Technology Centre in Leuven, Belgium. He is also a Fellow of various scientific societies. He has been honored by the Belgian King and European authorities, for example, he received an award for European merits in Luxemburg given by the former President of the European Commission. He is author of multiple scientific and technical publications and has coedited multiple books, especially in the field of nanoscience and nanotechnology.

Foreword

The variety of fields on which nanotechnology had and/or has a significant impact is remarkable. It ranges from health, environmental, and social issues to nanomedicine, nanoelectronics, and energy applications of nanotechnology. In the past decades, energy applications of nanotechnology have been recognized as one of the most promising and important facets of nanotechnology. In fact, even today, nanotechnology plays a key role in producing, storing, and distributing energy. The fast growth of nanotechnology in energy applications keeps rapidly expanding and diversifying our knowledge in that area. As a result, it becomes increasingly difficult to keep up with all of these developments. Similar situations in other fields indicate that an efficient way to overcome this difficulty is by means of reviews written by a team of internationally known experts discussing critically the present state of knowledge as well as conceivable visions and perspectives. This is the motivation and the approach used in this book on energy applications of nanotechnology.

If one looks at nanotechnology as a whole, it becomes evident that many of the key developments in nanotechnology – in basic science as well as in all kinds of technological applications – were initiated by discoveries or developments of new nanometer-sized structures. In turn, these new structures resulted in new properties that opened the way to new applications of nanotechnology.

Historically, the earliest examples – dating back to the fourth century – are Roman glasses containing nanometer-sized gold precipitates. In modern times, new properties were discovered when nanometer-structured materials were developed, for example, in the form of suspensions of colloidal crystals, in the form of buckyballs, or in the form of nanotubes. Basically, the same applies to solid materials with macroscopy external dimensions. About 40 years ago, solid materials consisting of nanometer-sized crystallites that are connected by grain or interface boundaries pioneered the field of nanocrystalline materials. Today, this field has expanded to more than 100 000 publications. All of the nanostructured materials that are available today are characterized by specific atomic arrangements such as the specific atomic arrangements in buckyballs, in nanometer-sized crystals of catalysts, or in nanocrystalline materials.

A world of nanometer-structured solids that have attracted little attention so far for applications in nanotechnology are nanostructured glassy solids. One reason may be that the methods available today to control the microstructure of glasses on a nanometer scale are very limited. However, the few studies of nanometer-structured glassy solids – called nanoglasses – have evidenced promising new features of nanoglasses such as unforeseen new magnetic, mechanical, or biological properties as well as the option to generate alloys in the form of nanoglasses that consist of components that are immiscible in crystalline materials. As already pointed out, the discovery of new kinds of nanostructured materials with new properties stood frequently at the beginning of new developments in nanotechnology. Hence, nanoglasses may represent the beginning of a family of new developments in the area of nanotechnology.

In conclusion, this book gives an overview of research results on structural and functional materials in the wide field of energy technology and is likely to become an important source of information for students, researchers, and industrialists. Moreover, it highlights the needs for nanomaterials research in the field, provides roadmaps for innovation, and pinpoints toward new nanofabrication techniques. Hence, the book is expected to be a stimulus for the further developments of the energy technology for the benefit of industry and economy and the world society.

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Distinguished Fellow, Honorary Advisor Prof. Dr. Dr. hc. Mult. Herbert Gleiter

Karlsruhe Institute of Technology (Germany)

Director, Herbert Gleiter Instítute of Nanoscience

Nanjing University of Science and Technology (China)

Fellow, Institute for Advanced Studies, City University of Hong Kong

Karlsruhe, March 21, 2016

Foreword

The exploration of the nanoworld in recent decades has truly led to a phase transformation in both scientific understanding and technology. The driver has been the much augmented impact of interfacial zones owing to their greater volume fraction, as well as the fact that many nanostructures show mesoscopic behavior, that is, a qualitatively different behavior from the macroscopic bulk. Furthermore, not only local properties can vary, even mechanistic changes can appear.

There is almost no field in science and technology that remains untouched by such phenomena. Referring to energy technologies is highly relevant in this context, not only because this is a field of major relevance, but also because it is particularly rich in nanoscale effects. The whole of Volume I is devoted to energy “production,” Volume II deals with energy storage, distribution, and conversion, and Volume III includes special materials issues and related issues referring to environment and society.

Apart from its relevance, this three-volume book also comes at the right time: The saying (ascribed to Dyson) that a book that intends to cover the time up to img (t0: present time) will be outdated at img stresses the point that a field must have reached a certain degree of maturity, should it be worth to be treated comprehensively and sustainably. Even though still a hot topic, nanoscience has reached a degree of maturity that allows one to identify major directions in the scientific treatment. Equally, nanotechnology has provided advanced tools in terms of preparation and analysis and has opened the pathway for various applications.

A representative example is offered by the influence on electrical properties, be it the field of nanoelectronics that is affected or be it – the author's favorite – the field of nanoionics. What the first has achieved in terms of information technology is expected for the latter in terms of energy technology.

In both fields, size reduction can lead to variations by orders of magnitude and, in a variety of cases to qualitative changes as far as transport or storage properties are concerned.

All in all, this book provides a collection of pertinent contributions by well-known experts on nanomaterials with strong emphasis on energy and environmental aspects.

The author wishes the book not only many buyers but also many readers.

Director, Max Planck Institute for Solid State Research      Professor Joachim Maier Stuttgart, Germany


Stuttgart, July 2016

Foreword

Nanoscience is one of the main thrust areas of science today, and the way the subject has blossomed in the last two decades is truly impressive. One of the reasons for the fast development of this field is the variety of applications of nanomaterials. Some of the important applications are in nanomedicine followed by electronics. While the developments in nanomedicine are truly impressive, applications in the area of energy devices are equally noteworthy. A large number of papers have been published in the last few years on the use of nanomaterials in various energy devices.

Among the nanomaterials, special mention must be made of carbon nanotubes that have found many uses. Two-dimensional materials have been widely used in the last few years because of their unique properties. One of the important two-dimensional materials is graphene that has found many applications, although not in pure form but in a state where it is doped suitably or functionalized in an appropriate manner. Inorganic analogues of graphene such as molybdenum disulfide and related chalcogenides have found a variety of possible applications in energy devices and other areas. These materials, unlike graphene, have a band gap.

In battery R&D, nanomaterials have been employed to improve or modify performance. This is specially true of lithium and sodium batteries. Two-dimensional nanomaterials have yielded excellent results in the area of supercapacitors. Thus, graphene and nitrogen-doped graphene have shown good performance as supercapacitor electrodes. Borocarbonitrides, BxCyNz, are also very good supercapacitor materials. In the case of fuel cells, several 2D materials have been found to be good catalysts for the oxygen reduction reaction. Specially noteworthy is the performance of borocarbonitrides.

The hydrogen evolution reaction has assumed great importance because of the wide interest in hydrogen economy. Photochemically induced generation of hydrogen has been achieved by using heterostructures of semiconducting nanomaterials or by dye sensitization employing nanosheets of two-dimensional MoS2 and other materials. Photoelectrochemical generation of hydrogen using nanomaterials has also been accomplished. Electrochemical hydrogen evolution generally employs a platinum catalyst and there have been recent efforts to substitute platinum by nonmetallic materials. Borocarbonitrides and a few other materials are found to be effective for this purpose. Production of hydrogen by employing a solar thermochemical cycle based on nanoparticles of metal oxides (e.g., Mn3O4) is an attractive possibility. In photovoltaics, there has been much progress in recent years, particularly in organic PVs, and there are aspects where nanoscience has made a difference.

The story of nanoenergy goes on, and the subject has become a vital component of nanosc1ence and technology. Clearly, some of the important solutions to the energy problem will emerge by the application of nanomaterials.

The book by Dr. Baldev Raj, Prof. Marcel Van de Voorde, and Dr. Yashwant Mahajan is a comprehensive knowledge base for students, academicians, industries, and policymakers to look at the totality and to understand current status and search for opportunities in a broad spectrum of energy domains. Nanotechnologies can play an important evolutionary or paradigm change contributions to clean energy realization. These volumes cover all energy sources and allied subjects such as storage and environment.

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Professor C. N. R. Rao, F. R. S.

National Research Professor

Linus Pauling Research Professor & Honorary President

Jawaharlal Nehru Centre for Advanced Scientific Research

Jakkur Campus, Jakkur

Bangalore, India

Jakkur, July 2016