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Books > Professional & Technical > Industrial chemistry & manufacturing technologies > Industrial chemistry > Chemical engineering
1 Automatisierung von Vakuumbeschichtungsanlagen.- 1.1 Vorbemerkungen.- 1.2 Steuerungssysteme.- 1.3 Materialfluss.- 1.3.1 Batch-Anlagen.- 1.3.2 Durchlauf-Anlagen (in-line-Anlagen).- 1.3.3 Cluster-Anlagen.- 1.3.4 Bandanlagen.- 1.4 Automatisierung von Teilsystemen.- 1.4.1 Pumpsatz-Steuerungen.- 1.4.2 Druckregelungen.- 1.4.2.1 Druckregelung durch Saugvermoegen.- 1.4.2.2 Druckregelung durch Gasfluss.- 1.4.3 Substrattransport.- 1.4.4 Substrattemperatur.- 1.4.4.1 Heizeinrichtungen.- 1.4.4.2 Messen und Regeln der Substrattemperatur.- 1.4.5 Automatisierung von Verdampfern.- 1.4.5.1 Widerstands-Verdampfer.- 1.4.5.2 Induktive Verdampfer.- 1.4.5.3 Elektronenstrahl-Verdampfer.- 1.4.6 Automatisierung von Sputterprozessen.- 1.4.6.1 Gleichstrom-Sputtern.- 1.4.6.2 Hochfrequenz-Sputtern.- 1.4.6.3 Magnetfeld-Verstellung.- 1.4.6.4 Plasma-Erkennung.- 1.4.7 Schichtdicke und Rate.- 1.4.7.1 Schichtdickenregelung.- 1.4.7.2 Abschalt-Kriterien.- 1.4.7.3 Ratenregelung.- 1.4.8 Reaktivprozesse.- 1.5 Beispiele fur die Automatisierung von Beschichtungsprozessen.- 1.5.1 Prozesssteuerung fur Aufdampfanlagen.- 1.5.2 Prozesssteuerung fur Sputter-Durchlauf-Anlagen.- 1.5.3 Automatisierung von CVD-Anlagen.- 2 Messungen an Dunnen Schichten wahrend des Beschichtungsprozesses.- 2.1 Bestimmung der Schichtdicke durch Widerstandsmessung.- 2.2 Ratenmessung durch Teilchen-Ionisierung und -Anregung.- 2.2.1 UEberblick.- 2.2.2 Ionensonde.- 2.2.3 Massenspektrometer.- 2.2.4 EIES.- 2.3 Schichtdicken und Aufdampfratemessung mit Schwingquarz.- 2.3.1 Einleitung und Ruckblick.- 2.3.1.1 Frequenz-Messmethode.- 2.3.1.2 Periodenzeit-Messmethode.- 2.3.1.3 Z-Match(R)-Verfahren.- 2.3.1.4 Zweifrequenz-oder Auto-Z-Match(R)-Verfahren.- 2.3.2 Sensor-Kennlinie (Massenempfindlichkeit).- 2.3.3 Grenzen der Genauigkeit und des Verwendungsbereichs.- 2.3.3.1 Einfluss des angewandten Verfahrens.- 2.3.3.2 Einfluss der Materialdichte.- 2.3.3.3 Schicht-Relaxation.- 2.3.3.4 Auswirkung intrinsischer Schichtspannungen.- 2.3.3.5 Temperatureinfluss.- 2.3.3.5.1 Frequenz-Temperaturkennlinie des Quarzes.- 2.3.3.5.2 Frequenz-Temperaturkennlinie des vollstandigen Messkopfes.- 2.3.3.6 Auftreten und Ursachen von Frequenzsprungen.- 2.3.3.6.1 Grenzschicht Quarz-Elektrode.- 2.3.3.6.2 Kopplung mit Nebenmoden.- 2.3.3.7 Anzeige der Messquarz-Restverwendungsdauer.- 2.3.3.7.1 Warnung bei Erreichen einer bestimmten Frequenzanderung.- 2.3.3.7.2 Dampfungs-bzw. materialabhangige Anzeige der Restverwendungsdauer.- 2.3.4 Schlussfolgerung und Zusammenfassung.- 2.4 Optische Messverfahren.- 2.4.1 Eilipsometer.- 2.4.2 Optische Prozesstechnik.- 2.4.2.1 Vorbemerkungen.- 2.4.2.2 Systematik der optischen Schichtdickenmessung.- 2.4.2.3 Monochromatische optische Schichtdickenmessung.- 2.4.2.3.1 Triggerpunktabschaltung/Extremwertabschaltung.- 2.4.2.3.2 Fehlerkompensation der direkten Messmethode bei Extremwertabschaltungen von ?/4-Schichtsystemen.- 2.4.2.3.3 Triggerpunktabschaltung mit On-Line-Korrektur.- 2.4.2.3.4 Probleme bei der Umsetzung der monochromatischen Schichtdickenmessung in die Praxis.- 2.4.2.3.5 Prozessfotometer fur die monochromatische optische Schichtdickenmessung.- 2.4.2.4 Breitbandige optische Schichtdickenmessung/ On-line-Nachoptimierung.- 2.4.3 Beispiele fur die Berechnung und Realisierung von Systemen aus dunnen Schichten.- 2.4.3.1 Matrixmethode zur Berechnung optischer Schichtsysteme.- 2.4.3.2 Eigenschaften einer Einfachschicht.- 2.4.3.3 Symmetrische Schichtsysteme.- 2.4.3.4 Schichtsysteme aus ?/4-und ?/2-Schichten.- 2.4.3.5 Rechnerunterstutzter Entwurf von Schichtsystemen.- 2.5 Schichtdickenbestimmung durch Wagung im Vakuum.- 2.6 Bestimmung der Schichtdicke und der Schichtzusammensetzung durch Roentgenemission und Roentgenfluoreszenz.- 2.7 Atomemissionsspektroskopie.- 3 Messungen an dunnen Schichten nach beendetem Beschichtungsprozess.- 3.1 Messung der thermischen Leitfahigkeit.- 3.1.1 Allgemeines.- 3.1.2 Experimentelle Bestimmung.- 3.2 Elektrische Leitfahigkeit.- 3.2.1 Definition.- 3.2.2 Bestimmungs
Among the materials found in Nature's many diverse living organisms or produced by human industry, those made from polymers are dominant. In Nature, they are not only dominant, but they are, as well, uniquely necessary to life. Conformations: Connecting the Chemical Structures and Material Behaviors of Polymers explores how the detailed chemical structures of polymers can be characterized, how their microstructural-dependent conformational preferences can be evaluated, and how these conformational preferences can be connected to the behaviors and properties of their materials. The authors examine the connections between the microstructures of polymers and the rich variety of physical properties they evidence. Detailed polymer architectures, including the molecular bonding and geometries of backbone and side-chain groups, monomer stereo- and regiosequences, comonomer sequences, and branching, are explicitly considered in the analysis of the conformational characteristics of polymers. This valuable reference provides practicing materials engineers as well as polymer and materials science students a means of understanding the differences in behaviors and properties of materials made from chemically distinct polymers. This knowledge can assist the reader design polymers with chemical structures that lead to their desired material behaviors and properties.
While continuous processes have found widespread application within chemical production, members of the research and development communities have historically favored the centuries old technique of iterative batch reactions. With the exception of combinatorial and microwave chemistry, little had been done to change the way that synthetic chemists conduct their research. However, today's synthetic chemist is under increasing pressure to discover and deliver compounds quickly, with an eye on devising scalable synthetic methodologies. An up-to-date account of recent developments in continuous flow organic synthesis, Micro Reaction Technology in Organic Synthesis is a useful resource for those both new to, and actively researching within, the field of micro reaction technology. Written by chemists for chemists, key synthetic information takes precedence over technological details Highlights the advantages and disadvantages of the technology, giving the reader an idea of where future research needs to be targeted Presents a comprehensive collection of synthetic reactions that have been investigated over the past decade, therefore is a one-stop resource to the reactions and techniques that have been investigated so far With an ever increasing number of commercial flow reaction platforms available, this book highlights the current state of the technology with the vision that more synthetic chemists will embark upon flow chemistry programs of research, facilitating the identification of novel synthetic methodologies the potential to be scaled directly to production.
The book presents current research progress on hydrogen storage alloys, with a special focus on their applications in batteries. Background, formation mechanisms, electrochemical characteristics, and effects of elemental substitution are covered. Provides an up-to-date overview of the theme for experienced researchers, while including enough fundamentals to serve as a handy, practical introduction for newcomers to the field.
This new volume, Physical Chemistry for Engineering and Applied Sciences: Theoretical and Methodological Implications, introduces readers to some of the latest research applications of physical chemistry. The compilation of this volume was motived by the tremendous increase of useful research work in the field of physical chemistry and related subjects in recent years, and the need for communication between physical chemists, physicists, and biophysicists. This volume reflects the huge breadth and diversity in research and the applications in physical chemistry and physical chemistry techniques, providing case studies that are tailored to particular research interests. It examines the industrial processes for emerging materials, determines practical use under a wide range of conditions, and establishes what is needed to produce a new generation of materials. The chapter authors, affiliated with prestigious scientific institutions from around the world, share their research on new and innovative applications in physical chemistry. The chapters in the volume are divided into several areas, covering developments in physical chemistry of modern materials polymer science and engineering nanoscience and nanotechnology
This book covers many important aspects of applied chemistry and chemical engineering, focusing on three main aspects: principles, methodology and evaluation methods. It presents a selection of chapters on recent developments of theoretical, mathematical, and computational conceptions, as well as chapters on modeling and simulation of specific research themes covering applied chemistry and chemical engineering. This book attempts to bridge the gap between classical analysis and modern applications. Covering a selection of topics within the field of applied chemistry and chemical engineering, the book is divided into several parts: polymer chemistry and technology bioorganic and biological chemistry nanoscale technology selected topics This book is the second of the two-volume series Applied Chemistry and Chemical Engineering. The first volume is Volume 1: Mathematical and Analytical Techniques.
Understanding mathematical modeling is fundamental in chemical engineering. This book reviews, introduces, and develops the mathematical models that are most frequently encountered in sophisticated chemical engineering domains. The volume provides a collection of models illustrating the power and richness of the mathematical sciences in supplying insight into the operation of important real-world systems. It fills a gap within modeling texts, focusing on applications across a broad range of disciplines. The first part of the book discusses the general components of the modeling process and highlights the potential of modeling in the production of nanofibers. These chapters discuss the general components of the modeling process and the evolutionary nature of successful model building in the electrospinning process. Electrospinning is the most versatile technique for the preparation of continuous nanofibers obtained from numerous materials. This section of book summarizes the state-of-the art in electrospinning as well as updates on theoretical aspects and applications. Part 2 of the book presents a selection of special topics on issues in applied chemistry and chemical engineering, including nanocomposite coating processes by electrocodeposition method, entropic factors conformational interactions, and the application of artificial neural network and meta-heuristic algorithms. This volume covers a wide range of topics in mathematical modeling, computational science, and applied mathematics. It presents a wealth of new results in the development of modeling theories and methods, advancing diverse areas of applications and promoting interdisciplinary interactions between mathematicians, scientists, engineers and representatives from other disciplines.
Applied Chemistry and Chemical Engineering, Volume 4: Experimental Techniques and Methodical Developments provides a detailed yet easy-to-follow treatment of various techniques useful for characterizing the structure and properties of engineering materials. This timely volume provides an overview of new methods and presents experimental research in applied chemistry using modern approaches. Each chapter describes the principle of the respective method as well as the detailed procedures of experiments with examples of actual applications and then goes on to demonstrate the advantage and disadvantages of each physical technique. Thus, readers will be able to apply the concepts as described in the book to their own experiments. The book is broken into several subsections: Polymer Chemistry and Technology Computational Approaches Clinical Chemistry and Bioinformatics Special Topics This volume presents research and reviews and information on implementing and sustaining interdisciplinary studies in science, technology, engineering, and mathematics.
This volume, Applied Chemistry and Chemical Engineering, Volume 5: Research Methodologies in Modern Chemistry and Applied Science, is designed to fulfill the requirements of scientists and engineers who wish to be able to carry out experimental research in chemistry and applied science using modern methods. Each chapter describes the principle of the respective method, as well as the detailed procedures of experiments with examples of actual applications. Thus, readers will be able to apply the concepts as described in the book to their own experiments. This book traces the progress made in this field and its sub-fields and also highlight some of the key theories and their applications and will be a valuable resource for chemical engineers in Materials Science and others.
Quantitative Process Control Theory explains how to solve industrial system problems using a novel control system design theory. This easy-to-use theory does not require designers to choose a weighting function and enables the controllers to be designed or tuned for quantitative engineering performance indices such as overshoot. In each chapter, a summary highlights the main problems and results and exercises improve and test your understanding of the material. Mathematical proofs are provided for almost all the results while examples are based on actual situations in industrial plants involving a paper-making machine, heat exchanger, hot strip mill, maglev, nuclear reactor, distillation column/heavy oil fractionator, jacket-cooled reactor, missile, helicopter/plane, and anesthesia. Developed from the author's many years of research, this book takes a unique, practical approach for efficiently solving single-input and single-output (SISO) and multiple-input and multiple-output (MIMO) control system design issues for quantitative performance indices. With much of the material classroom-tested, the text is suitable for advanced undergraduate and graduate students in engineering, beginning researchers in robust control, and more seasoned engineers wanting to learn new design techniques.
Over the past four decades, notable advancements in the theory and application of ion exchange science uncovered a wealth of knowledge that fueled new scientific pursuits and created synergies with myriad scientific endeavors. Today, pioneers continue to break new ground by synthesizing novel materials and merging the interdisciplinary fields of science and engineering. Now in its 20th volume, Ion Exchange and Solvent Extraction: A Series of Advances chronicles the ongoing changes that drive innovation in this important field. Beginning with a review of research studies that show how functionalized ion exchange polymers serve as supports to stabilize metal nanoparticles (MNPs) without forming larger than nano aggregates, the book describes the sorption of different gases from the air by ion exchange resins and fibrous ion exchangers and discusses the selective ion exchange technology capable of removing and recovering perchlorate quantitatively through stable isotope ratio analysis of chlorine and oxygen atoms, allowing for the forensic analysis of perchlorate origin in contaminated water. Later chapters demonstrate how numerical simulations coupled with small-scale bench-top experiments can help tailor particle size distribution and enhance the efficiency of each application, review dual-temperature ion exchange processes in which sorption and desorption are carried out solely by varying temperature, and present the preparation and characterization of a new composite material in which microparticles of clinoptilolite are embedded in a matrix of cross-linked chitosan, opening new opportunities for the natural biopolymer. The book concludes with the preparation, characterization, and field-level experience of an emerging class of "hybrid ion exchangers" that enhance the application opportunities of ion exchange resins. Highlighting the latest and most pivotal discoveries, the 20th volume of a field standard codifies the current state-of-the-art and lays the groundwork for the next generation of growth and expansion in the field of ion exchange.
Long-term success in scientific research requires skills that go well beyond technical prowess. Success and Creativity in Scientific Research: Amaze Your Friends and Surprise Yourself is based on a popular series of lectures the author has given to PhD students, postdoctoral researchers, and faculty at the Georgia Institute of Technology. Both entertaining and thought-provoking, this essential work supports advanced students and early career professionals across a variety of technical disciplines to thrive as successful and innovative researchers. Features: Discusses habits needed to find deep satisfaction in research, systematic and proven methods for generating good ideas, strategies for effective technical writing, and making compelling presentations Uses a conversational tone, making extensive use of anecdotes from scientific luminaries to engage readers Provides actionable methods to help readers achieve long-term career success Offers memorable examples to illustrate general principles Features topics relevant to researchers in all disciplines of science and engineering This book is aimed at students and early career professionals who want to achieve the satisfaction of performing creative and impactful research in any area of science or engineering.
Rapid detection and indication of the microbiological quality of liquids is an emerging topic that has high potential for numerous applications in the fields of environmental monitoring, industrial process control and medical surveillance. Latest technologies allow online and near-real-time quantitative or qualitative microbial measurements with a significantly higher temporal resolution than traditional methods. Such novel developments will significantly enhance quality monitoring of water resources and liquids and have great capability for automation, control and optimization of industrial processes. Therefore, such methods are assumed to have major impacts on scientific research and technical applications in the near future. The book presents cutting edge research on frontiers in microbiological detection from leading experts: Seven chapters containing review articles on emerging and state-of-the-art online and near-real-time methods of microorganism detection and - indication are giving a comprehensive insight into this novel field. A balance between chapters from industry and contributions from academia was aimed for, covering the broad field of microbiological quality of waters and liquids in environmental, industrial and medical systems. This handbook also contains an extensive glossary pointing out and describing relevant terms and definitions. This handbook is the first of its kind and is a timely, comprehensive source of information for researchers and engineers in the areas of biotechnology, environmental sciences, control technology and the process industries.
The global warming problem is becoming critical year by year, causing climate disaster all over the world, where it has been believed that the CO2 gas emitted from the factories and the burning of fossil fuels may be one of the reasons of global warming. Moreover, the global stock of fossil fuels is limited, and may run out soon within several tens of years. Although wind, geo-thermal, and tide energies have been considered as clean energy sources, those depend on the land or sea locations and subject to the climate change. Biofuel and biochemical production from renewable bio-resources has thus been paid recent attention from environmental protection and energy production points of view, where the current chemical and energy producing plants can be also utilized with slight modification. The so-called 1st generation biofuels have been produced from corn starch and sugarcane in particular in USA and Brazil. However, this causes the problem of the so-called "food and energy issues" as the production scale increases. The 2nd generation biofuel production from lingo-cellulosic biomass or wastes has thus been paid recent attention. However, it requires energy intensive pretreatment for the degradation of lingo-cellulosic biomass, and the fermentation is slow due to low growth rate, and thus the productivity of biofuels and bio-chemicals is low. The 3rd generation biofuel production from photosynthetic organisms such as cyanobacteria and algae has been also paid attention, because such organisms can grow with only sun light and CO2 in the air, but the cell growth rate and thus the productivity of the fuels is significantly low. The main part or core of such production processes is the fermentation by micro-organisms. In particular, it is critical to properly understand the cell metabolism followed by the efficient metabolic engineering. The book gives comprehensive explanation of the cell metabolism and the metabolic regulation mechanisms of a variety of micro-organisms. Then the efficient metabolic engineering approaches are explained to properly design the microbial cell factories for the efficient cell growth and biofuel and biochemical production.
Liquefied Natural Gas (LNG) is the only viable way to extract and transport natural gas from areas not serviceable by a pipeline, but it also poses safety risks. This book examines the safety concerns regarding LNG, and examines the debate between its advocates and its opponents. The text considers risks on the extraction, transportation, and maintenance of LNG; includes discussion of case studies and LNG-related accidents over the past half-century; and summerizes the findings of the Governmental Accountability Office's (GAO) survey of nineteen LNG experts from across North America and Europe.
This volume presents a selection of important information and discussion on the new scientific trend of chemical mesoscopics and also sheds new knowledge on the science of nanomaterials, processes of nanochemistry, and nanoengineering. The volume explores nanomaterial development as well as investigations of processes and modeling. It provides new perspectives on processes, while also discussing new methods of treatment polymeric materials and different material modification, including by super small quantities of metal/carbon nanocomposites. This volume will be a valuable resource on new trends on chemical mesoscopics, nanotechnology, and nanoengineering for researchers, scientists, professors, postgraduate students, and others.
In chemical processes, the progressive deactivation of solid catalysts is a major economic concern and mastering their stability has become as essential as controlling their activity and selectivity. For these reasons, there is a strong motivation to understand the mechanisms leading to any loss in activity and/or selectivity and to find out the efficient preventive measures and regenerative solutions that open the way towards cheaper and cleaner processes. This book covers the fundamental and applied aspects of solid catalyst deactivation in a comprehensive way and encompasses the state of the art in the field of reactions catalyzed by zeolites. This particular choice is justified by the widespread use of molecular sieves in refining, petrochemicals and organic chemicals synthesis processes, by the large variety in the nature of their active sites (acid, base, acid-base, redox, bifunctional) and especially by their peculiar features, in terms of crystallinity, structural order and textural properties, which make them ideal models for heterogeneous catalysis. The aim of this book is to be a critical review in the field of zeolite deactivation and regeneration by collecting contributions from experts in the field which describe the factors, explain the techniques to study the causes and suggest methods to prevent (or limit) catalyst deactivation. At the same time, a selection of commercial processes and exemplar cases provides the reader with theoretical insights and practical hints on the deactivation mechanisms and draws attention to the key role played by the loss of activity on process design and industrial practice.
With focus on the practical use of modern biotechnology for environmental sustainability, this book provides a thoughtful overview of molecular aspects of environmental studies to create a new awareness of fundamental biological processes and sustainable ecological concerns. It covers the latest research by prominent scientists in modern biology and delineates recent and prospective applications in the sub-areas of environmental biotechnology with special focus on the biodegradation of toxic pollutants, bioremediation of contaminated environments, and bioconversion of organic wastes toward a green economy and sustainable future.
The science of chemistry is so broad that it is normally broken into fields or branches of specialization. The manufacture of drugs and dyes is one of the most practical industrial applications of chemistry. This collection presents the reader with a broad spectrum of chapters on drugs and dyes, thereby demonstrating key developments in this rapidly changing field. It examines dyes in chemical interaction and production of drugs for pharmaceutical use as well as in forensic work and in the production of materials.
This new work, Functional Polymeric Composites: Macro to Nanoscales, focuses on new challenges, findings, opportunities, and applications in the area of polymer composites. The chapters, written prominent researchers from academia, industry, and research institutes from around the world, present contemporary research and developments on advanced polymeric materials, including polymer blends, polymer electrolytes, bio-based polymer, polymer nanocomposites, etc. Several chapters also cover the applications of the polymeric systems in current industry development and synthesis and characterization of the products.
Published under the auspices of both IUPAC and its affiliated body, the International Association of Chemical Thermodynamics (IACT), this book will serve as a guide to scientists or technicians who use equations of state for fluids. Concentrating on the application of theory, the practical use of each type of equation is discussed and the strengths and weaknesses of each are addressed. It includes material on the equations of state for chemically reacting and non-equilibrium fluids which have undergone significant developments and brings up to date the equations of state for fluids and fluid mixtures. Applied Thermodynamics of Fluids addresses the needs of practitioners within academia, government and industry by assembling an international team of distinguished experts to provide each chapter. The topics presented in the book are important to the energy business, particularly the hydrocarbon economy and the development of new power sources and are also significant for the application of liquid crystals and ionic liquids to commercial products. This reference will be useful for post graduate researchers in the fields of chemical engineering, mechanical engineering, chemistry and physics.
Complex multiscale systems such as combined free or porous flow regimes and transport processes governed by combined diffusion, convection and reaction mechanisms, which cannot be readily modeled using traditional methods, can be solved by multiscale or stabilized finite element schemes. Due to the importance of the described multiscale processes in applications such as separation processes, reaction engineering and environmental systems analysis, a sound knowledge of such methods is essential for many researchers and design engineers who wish to develop reliable solutions for industrially relevant problems. The main scope of this book is to provide an authoritative description of recent developments in the field of finite element analysis, with a particular emphasis on the multiscale finite element modeling of transport phenomena and flow problem.
During the upgrading of heavy petroleum, asphaltene is the most problematic impurity since it is the main cause of catalyst deactivation and sediments formation. Exploring many aspects related to asphaltenes composition and conversion, Asphaltenes: Chemical Transformation during Hydroprocessing of Heavy Oils highlights the various changes that these heavy and complex molecules undergo during catalytic hydroprocessing. After defining and characterizing asphaltene structure, the book examines the composition of petroleum and the processes and catalysts for upgrading heavy oils. It then details the characterization of asphaltenes after hydroprocessing and the effect of reaction conditions on their structures. The authors also analyze the deactivation and characterization of spent hydroprocessing catalysts as well as the role played by asphaltenes. They cover sediments formation during hydroprocessing and the role of asphaltenes on it. The final chapters describe the hydrocracking and kinetics of asphaltenes and the fractionation of heavy crudes and asphaltenes. Due to the increasing production of heavy crude oils, asphaltene has become one of the most studied molecules. This book provides a deep understanding of how asphaltenes transform during hydroprocessing, offering insight on designing catalysts and processing for the upgrading of heavy oils.
The book contains the very latest information on all aspects of heat capacities related to liquids and vapours, either pure or mixed. The chapters, all written by knowledgeable experts in their respective fields, cover theory, experimental methods, and techniques (including speed of sound, photothermal techniques, brillouin scattering, scanning transitiometry, high resolution adiabatic scanning calorimetry), results on solutions, liquids, vapours, mixtures, electrolytes, critical regions, proteins, liquid crystals, polymers, reactions, effects of high pressure and phase changes. Experimental methods for the determination of heat capacities as well as theoretical aspects, including data correlation and prediction, are dealt with in detail. Of special importance are the contributions concerning heat capacities of dilute solutions, ultrasonics and hypersonics, critical behaviour and the influence of high pressure. This new book covers the wide range of topics in the field of heat capacities and vapours and as such is a key point of reference for undergraduates and graduates alike as well as researchers, academics and anyone working in the field or related areas.
The book deals with the environmentally friendly cleaning materials functionalized with TiO2, a widely known semiconductor giving rise to redox reactions under artificial or solar irradiation. The role of Titanium dioxide in the worldwide community is introduced first. The fundamental working principles of heterogeneous photocatalysis follow and a critical section on the semiconductor bulk and surface properties open the way to the differences between TiO2 blend features with respect to analogous thin film layouts. Then follows the main section of the book which deals with the techniques applied to manufactured commercial devices, ranging from glasses to textiles and from concrete and other construction materials to paintings. Also road asphalt and other devices, such as photocatalytic air conditioning machines are outlined. Last generation materials, not yet commercialized, and the deposition techniques applied to prepare them are also widely discussed. The final part of the book covers the difficult and modern topic of standardization and comparison of performance of photocatalytic processes and in particular the guidelines proposed by various worldwide organizations for standardization are discussed. The book covers the general matters as well as the practical applications with the supporting methods discussed in detail. This book brings together a team of highly experienced and well-published experts in the field, providing a comprehensive view of the applications of supported titanium dioxide. |
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