Описание: Today there is an increased focus on a considerable reduction of the total energy consumption in the world. As the heating of buildings constitutes a large part of this consumption, the development of highly efficient thermal insulation materials is highly demanded. The most promising class are polymeric nanofoams, which might be producible by using the "Principle Of Supercritical Microemulsion Expansion" (POSME). Within this approach, microemulsions with a high number density of CO2 nano-pools in a polymerizable material (e.g. polyol) are used as templates. Adjusting supercritical conditions, the nucleation of gaseous CO2 during the expansion is avoided, so that each CO2-swollen micelle should ideally grow to a nanopore. However, due to aging phenomena, so far only polyurethane (PU) foams with microcellular pores could be produced applying this approach. In order to improve the properties of the foamable microemulsion template, microemulsions of the type water - CO2 - non-ionic fluorinated surfactant (Capstone(R) FS-3100) were studied in the first part of this thesis as a model system. Small angle neutron scattering (SANS) measurements for the first time revealed the phase inversion from CO2-swollen micelles in water via bicontinuous structures to water-swollen micelles in CO2. Using a scaling description developed for microemulsions of the type water -alkane - CiEj, the temperature dependence of the length scales found in classical and CO2-microemulsions fall on top of each other. Moreover, the partial replacement of CO2 by cyclohexane was found to increase the efficiency of the fluorinated surfactant to form a bicontinuous microemulsion. This efficiency boosting could be correlated with the increase of the bending rigidities κ0, SANS and κNSE determined by SANS and neutron spin echo (NSE). In the second part of this thesis the gained knowledge was successfully used to formulate CO2-in-polyol microemulsions appropriate for the production of nanocellular PU foams. Usi
Описание: The series Topics in Current Chemistry presents critical reviews of the present and future trends in modern chemical research. Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole.
Автор: Bisquert Название: Nanostructured Energy Devices ISBN: 1439836027 ISBN-13(EAN): 9781439836026 Издательство: Taylor&Francis Рейтинг: Цена: 19906.00 р. Наличие на складе: Поставка под заказ.
Описание: This book covers the physical principles and applications of a range of nanoscale materials and devices that are key for the energy revolution, including hybrid and organic solar cells, lithium batteries, and supercapacitors. Topics discussed range from the fundamental concepts of operating nanoscale energy devices to advanced device modeling. Modeling is presented as a function of the characterization techniques used to test device properties, emphasizing impedance spectroscopy characteristics, since it provides a unifying theme that connects the properties of the different energy devices.
Автор: Yamashita Hiromi, Li Hexing Название: Nanostructured Photocatalysts: Advanced Functional Materials ISBN: 331979891X ISBN-13(EAN): 9783319798912 Издательство: Springer Рейтинг: Цена: 13974.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: While books on semiconductor TiO2 photocatalysis are legion, nanostructured controlled photocatalysts are attractive beyond standard semiconductors, and this book is devoted to the many novel uses of advanced TiO2 and MOF-based photocatalysts. Details on synthesis, characterization, and reaction applications of nanostructured photocatalysts are summarized. Other new materials discussed in this book are Bi- W- oxides, metal complexes, and unique porous materials. This book contains methods of preparation and characterization of unique nanostructured photocatalysts, and details about their catalytic action. Contributors to this volume are leading Asian researchers in Photocatalysis. It will appeal to researchers wishing to know how to design new types of photocatalysts with controlled nanostructures.
Автор: Hiromi Yamashita; Hexing Li Название: Nanostructured Photocatalysts ISBN: 3319260774 ISBN-13(EAN): 9783319260778 Издательство: Springer Рейтинг: Цена: 19591.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: While books on semiconductor TiO2 photocatalysis are legion, nanostructured controlled photocatalysts are attractive beyond standard semiconductors, and this book is devoted to the many novel uses of advanced TiO2 and MOF-based photocatalysts.
Автор: Susannah L. Scott; Cathleen M. Crudden; Christophe Название: Nanostructured Catalysts ISBN: 0306474840 ISBN-13(EAN): 9780306474842 Издательство: Springer Рейтинг: Цена: 26122.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: With the recent advent of nanotechnology, research and development in the area of nanostructured materials has gained unprecedented prominence. Materials with patterned surfaces, which are essential for the optoelectronics industry, constitute another important class of surface-modified nanostructured materials.
Автор: Susannah L. Scott; Cathleen M. Crudden; Christophe Название: Nanostructured Catalysts ISBN: 1475782047 ISBN-13(EAN): 9781475782042 Издательство: Springer Рейтинг: Цена: 26122.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: With the recent advent of nanotechnology, research and development in the area of nanostructured materials has gained unprecedented prominence. Materials with patterned surfaces, which are essential for the optoelectronics industry, constitute another important class of surface-modified nanostructured materials.
Автор: Piumetti Marco, Bensaid Samir Название: Nanostructured Catalysts for Environmental Applications ISBN: 3030589331 ISBN-13(EAN): 9783030589332 Издательство: Springer Цена: 20962.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book offers an overview of the recent studies and advances in environmental catalysis by nanomaterials, considering both the fundamental and the technological aspects.
Автор: Piumetti Marco, Bensaid Samir Название: Nanostructured Catalysts for Environmental Applications ISBN: 3030589366 ISBN-13(EAN): 9783030589363 Издательство: Springer Рейтинг: Цена: 20962.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book offers an overview of the recent studies and advances in environmental catalysis by nanomaterials, considering both the fundamental and the technological aspects.
Metal Oxide-Based Nanostructured Electrocatalysts for Fuel Cells, Electrolyzers, and Metal-air Batteries is a comprehensive book summarizing the recent overview of these new materials developed to date. The book is motivated by research that focuses on the reduction of noble metal content in catalysts to reduce the cost associated to the entire system. Metal oxides gained significant interest in heterogeneous catalysis for basic research and industrial deployment.
Metal Oxide-Based Nanostructured Electrocatalysts for Fuel Cells, Electrolyzers, and Metal-air Batteries puts these opportunities and challenges into a broad context, discusses the recent researches and technological advances, and finally provides several pathways and guidelines that could inspire the development of ground-breaking electrochemical devices for energy production or storage. Its primary focus is how materials development is an important approach to produce electricity for key applications such as automotive and industrial.
The book is appropriate for those working in academia and R&D in the disciplines of materials science, chemistry, electrochemistry, and engineering.
Автор: Paolo Milani; Salvatore Iannotta Название: Cluster Beam Synthesis of Nanostructured Materials ISBN: 3642641733 ISBN-13(EAN): 9783642641732 Издательство: Springer Рейтинг: Цена: 16769.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book supplies a systematic description of the preparation, characterization, and manipulation of cluster beams for the synthesis of nanocrystalline materials.
Описание: The series Topics in Current Chemistry presents critical reviews of the present and future trends in modern chemical research. Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole.
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