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Books > Science & Mathematics > Chemistry > Physical chemistry
The book presents the method of thermodynamic Green Functions applied to the problems of electrochemistry. The basic theorems and their derivations are found at the didactic level which requires, however, a knowledge of the principles of quantum mechanics and statistical physics. The book is mainly based on the results of papers published during the last fifteen years by its authors and their coworkers from the Department of Theoretical Chemistry and the Department of Solid State Physics of the University ofL6di (poland) within the context of the results reported in literature. Although the Green Functions Method has become very popular in solid state physics, there are almost no applications of this technique to electrochemistry. The only papers where the Green Functions Method is applied to the molten salts and liquid mercury theory are the precursory works published by Professor S. G. Davison and his coworkers from the Waterloo University (Canada) in the early eighties. We hope that the present book can fill this gap in the electrochemical literature.
Catalysts are central in modern industrial chemistry and there is an urgent need to develop new catalysts. Such a rapid pace of development brings with it a new set of challenges at all levels of research, from synthesis and characterization to testing and modelling. This book reviews the current status of combinatorial catalysis, scientific catalyst design techniques, methods for preparing inorganic combinatorial libraries, experimental design methods, data processing, system modelling an simulation, and catalyst testing. The individual contributions reveal the development of high throughput catalyst design and test methods and identify the main challenges in the field, including new catalyst preparation techniques, rapid performance evaluation, and new microreactor configurations. Readership: All those working in catalytic process analysis and development. The extensive review of catalysis principles is especially relevant for postgraduate students seeking to pursue studies in catalysis.
This thesis investigates the effect of the magnetic field on propagating surface plasmon polaritons (SPPs), or surface plasmons for short. Above all, it focuses on using the magnetic field as an external agent to modify the properties of the SPPs, and therefore achieving active devices. Surface plasmons are evanescent waves that arise at metal-dielectric interfaces. They can be strongly confined (beyond the light diffraction limit), and provide a strong enhancement of the electromagnetic field at the interface. These waves have led to the development of plasmonic circuitry, which is a key candidate as an alternative to electronic circuitry and traditional optical telecommunication devices, since it is faster than the former and less bulky than the latter. Adopting both a theoretical and an experimental point of view, the book analyzes the magnetic modulation in SPPs by means of an interferometer engraved in a multilayer combining Au and Co. In this interferometer, which acts like a modulator, the SPP magnetic modulation is studied in detail, as are the parameters that have a relevant impact on it, simple ways to enhance it, its spectral dependence, and the highly promising possibility of using this system for biosensing. The thesis ultimately arrives at the conclusion that this method can provide values of modulations similar to other active methods used in plasmonics.
Based on the plenary and invited lectures presented at the International Symposium on Micelles, Microemulsions, and Monolayers, this title reviews the progress achieved over the years and describes different directions for research on micellar, microemulsion, and monolayer systems and their technological potential.
This volume deals with substances in the liquid state that range from high melting salts, such as calcium fluoride, through slags, such as silicates, down to lower melting salts, such as lithium nitrate, molten hydrated salts, such as magnesium chloride hexahydrate, to room temperature ionic liquids, such as 1,3-dimethylimmidazolium tetraphenylborate. It provides the reader with annotated, critically examined, and compiled data for such materials. The data includes a variety of thermochemical, structural, and transport properties. The book includes correlations of measured properties; these correlations should enable the reader to estimate, on a sound basis, properties for ionic liquids that have not yet been measured.
Electrochemical synthesis of inorganic compounds is a relatively unknown field. The successful, large industrial processes, such as chlorine-caustic production, are well known, but the large number of other compounds that have been synthesized electrochemically are much less appreciated, even by electrochemists and inorganic chemists. The last comprehensive book on this subject was published in the 1930's and no modern review or summary of the whole field is in existence. But the field is in no way dormant, as attested by the large number of publications, undiminished throughout the years, describing new syntheses and improvements of old ones. Indeed, it can be expected that practical applications of electrochemical inor ganic syntheses will increase in the future as an increasing portion of our energy will be available in electrical form. Electrochemical processes have important advantages over chemical routes: often the selectivity of the reaction can be better controlled through the use of potential control at the electrode, and the creation of environmen tally harmful waste material can be avoided more easily since one is using the purest reagent - the electron. In addition to development of new synthetic routes, many old ones, which were found to be un economical in the past, are worth reexamining in light of the recent considerable advances in cell design principles, materials of construc tion, and electrode and separator materials, together with our im proved understanding of electrode reactions and electrocatalysis. It is in the hope of accelerating this process that this bibliography is published."
This book presents a collection of selected lectures discussing current problems in molecular physics and reviews the main cutting-edge advances in condensed and soft matter physics. It offers deep insights and a powerful basis for scientists and engineers to study complicated problems in physics, chemistry, biology, and medicine. The unification of experimental, theoretical, and computational methods allows milestone results to be achieved in areas such as ionic and ionic-electronic liquids, magnetic liquid systems, liquid systems with nanoparticles, structural phase transitions and critical phenomena, and small-angle neutron and X-ray scattering in liquids and liquid systems. The lectures selected for this book were held at the 7th International Conference "Physics of Liquid Matter: Modern Problems" (PLMMP-2016), 27-31 May in Kiev, Ukraine.
Physico-Chemical Analysis of Molten Electrolytes includes selected
topics on the measurement and evaluation of physico-chemical
properties of molten electrolytes. It describes the features,
properties, and experimental measurement of different
physico-chemical properties of molten salt systems used as
electrolytes for different metal production, metallic layer
deposition, as a medium for reactions in molten salts.
Multinary compounds are now used in a wide range of devices, including photovoltaic solar cells, light emitters and detectors, and piezoelectric actuators. Ternary and Multinary Compounds provides an interdisciplinary forum for scientists and engineers working on fundamental and applied aspects of these materials. The volume focuses on optoelectronic properties, electronic band structure, charge carrier transport, optical and magnetic properties, and superconductivity. It includes chapters on the research and development of new techniques and novel materials, such as laser ablation deposition and ferroelectrics.
Over the last twenty years, developments of the ab initio metho dologies and of the computing capacities have progressively turned quantum chemistry into a predictive tool for molecular systems involving only light elements. The situation appears less advanced for systems containing transition metal elements where specific difficulties arise, like those 1inked to the quasi-degeneracy of the lowest atomic states. Correlation effects, which are important only for quantitative accuracy in the treatment of molecules made of light elements, need sometimes to be considered even for a qualitative des cription of transition metals systems (like the multiple metal-metal bond). The treatment of atoms of a high atomic number has necessited the development of model potential methods. These difficulties ex acerbate for systems containing several trans ition atoms a correct description of the dichromium molecule Crz still represents a challenge to quantum chemists. Yet many advances have been made recently in the theoretical treatment of these systems, despite the fact that our understanding still remains disparate with a variety of models and methodologies used more or less successfully (one-electron models, explicitly correlated ab initio methods, density functional formalisms). For these reasons, a NATO Advanced Research Workshop was organized to review in detail the state-of-the-art techniques and at the same time the most common applications. These encompass many fields including the spectroscopy of diatomics and small aggregates, structure and reactivity problems in organometallic chemistry, the cluster surface analogy with its implications for heterogeneous catalysis and the description of extended structures."
This volume is a collection of the lectures presented at the NATO Advanced Study Institute "Interfacial Aspects of Phase Trans- formations", held in Erice (Sicily) in 198t.The Institute was the seventh course of the International School of Crystallography, es- tablished in the Center of Scientific Culture "Ettore Majorana" in 1974, with the guidance and inspiration of L. Riva di Sanseverino and A. Zichichi. The course organizers, R. Kern and myself, were advised and helped in developing the program, and in the choice of lecturers and participants, by R.F. Sekerka, F. Bedarida, J.L. Katz and J. G. Dash. Although the scope of the Institute (as reflected in the content of this book) might appear too wide, we believe that it responds to a real necessity. Both Surface Science and Crystal Growth (in- cluding problems of nucleation, thin films, recrystallization etc.) have developed to an unusual extent during the last few decades. Each of these two fields have benefited from the knowledge of the other; good examples are the progress in evaporation/condensation thermodynamics and kinetics of organized (sub-)monolayers, the de- velopement of new methods of preparing and characterizing atomical- ly smooth or controlled vicinal (stepped) surfaces, etc.
In response to the explosion of theories and experiments since the appearance of the first edition, the author has revised and expanded his basic text. New sections include up-to-date discussions of multiphoton ionization, and electron-atom and atom-atom scattering in laser fields, reaffirming the work's position as the standard introduction to the field.
This volume contains the proceedings of the NATO Advanced Research Workshop on "Atomic and Molecular Wires". It was sponsored by the Ministry of Scientific Affairs Division special program on Nanoscale Science with the support of the CNRS and the Max Planck Institute. Scientists working or interested in the properties of wires at a subnanoscale were brought together in Les Houches (France) from 6 to 10 May 1996. Subnanoscale wires can be fabricated either by surface physicists (atomic wires) or by synthetic chemists (molecular wires). Both communities present their foremost advances using, for example, STM to assemble atomic lines atom for atom, to fabricate a mask for such a line or using the wide range of chemical synthesis techniques to obtain long, rigid and conjugated oligomers. Interconnecting such tiny wires to sources (voltage, current) continues to demand a great technological effort. But nanolithography associated with microfabrication or STM are now clearly identified paths for measuring the electrical resistance of an atomic or a molecular wire. The first measurements have been reported on Xe , benzene, C ' di(phenylene-ethynylene) showing 2 60 the need for a deeper understanding of transport phenomena through subnanowires. Such transport phenomena like tunnel (off-resonance) transport and Coulomb blockade have been discussed by theorists with an emphasis on the exponential decrease of the tunnel current with the wire length versus the ballistic regime of transport.
From reviews of previous volumes: 'This volume continues the valuable service that has been rendered by the Modern Aspects series.'-Journal of Electroanalytical Chemistry 'Extremely well referenced and very readable....Maintains the overall high standards of the series.'-Journal of the American Chemical Society
Practical skills form the cornerstone of chemistry. However, the diversity of skills required in the laboratory means that a student's experience may be limited. While some techniques do require specific skills, many of them are transferable generic skills that are required throughout the subject area. Limited time constraints of the modern curriculum often preclude or minimise laboratory time. Practical Skills in Chemistry 3rd edition provides a general guidance for use in and out of practical sessions, covering a range of techniques from the basic to the more advanced. This 'one-stop' text will guide you through the wide range of practical, analytical and data handling skills that you will need during your studies. It will also give you a solid grounding in wider transferable skills such as teamwork, using information technology, communicating information and study skills. This edition has been enhanced and updated throughout to provide a complete and easy-to-read guide to the developing skills required from your first day through to graduation, further strengthening its reputation as the practical resource for students of chemistry and related discipline areas.
This book presents numerous uses of biosurfactants as potential alternatives to synthetic surfactants in food, textile, biomedical and therapeutic applications as well as in bioremediation and waste management. Divided into four parts, the book explores a wide range of biosurfactants as sustainable materials, starting with an overview of biosurfactants' production, in which readers will find topics such as characterization, purification, sustainable production, biodegradation, and cytotoxic aspects of biosurfactants. Part 2 presents the latest applications of biosurfactants in food and textile industries, as well as their application in nanoparticle synthesis, heavy metal remediation, drug absorption, waste treatment, agriculture management, marine sediment remediation of organic pollutants, emulsification and biofuel production, and as anti-corrosive agents. Part 3 traces current biomedical applications of biosurfactants, including their use as biocidal, wound healing, and anti-tumour agents. In this part, readers will also discover further applications of biosurfactants in oral cavity care, and biofilm prevention and disruption. The final part of the book discusses the main advantages and disadvantages of biosurfactants over synthetic surfactants, the current challenges in biosurfactant research, and prospects for their commercialization. This book will be a valuable resource for students, scholars and researchers working in the fields of colloidal and interface science, chemistry and chemical engineering. Professionals and scholars alike will appreciate the latest research findings that it presents.
This contributed volume provides a critical review of research in the field of Electrochemical Promotion of Catalysis (EPOC). It presents recent developments during the past decade that have led to a better understanding of the field and towards applications of the EPOC concept. The chapters focus on the implementation of EPOC for developing sinter-resistant catalysts, catalysts for hydrogen production, ammonia production and carbon dioxide valorization. The book also highlights the developments towards electropromoted dispersed catalysts and for self-sustained electrochemical promotion which are currently expanding. This authoritative analysis of EPOC is useful for various scientific communities working at the interface of heterogeneous catalysis, solid state electrochemistry and materials science. It is of particular interest to groups whose research focuses on developments towards a better and more sustainable future.
Intended as a reference handbook of quantities used in dosimetry of ionizing radiations. Fields of application are radiological protection, environmental radiation, health physics, nuclear medicine and radiotherapy, radiobiology, radiopharmacy and radiation chemistry. The book is in three parts. The first part deals with electrons, X-rays and gamma-rays. The second part contains data for heavy charged particles ranging from protons to uranium ions, and the final part is concerned with neutrons. Quantities tabulated include quality paramenters recommended by the International Commissions of Radiological Protection and of radiation quantities units and measurements.
Contains selected invited papers presented at the 10th International Symposium on Surfactants in Solution held in Caracas, Venezuela. The volume covers phase behaviour of monolayers, contact angle hysteresis, micellar relaxation, micellar catalyzed reactions, polymerization in microemulsions, polymer-surfactant complexation, asphaltenes, and more.
This is one of the first books fully dedicated to the rapidly advancing and expanding research area of deep eutectic solvents. Written by the internationally recognized expert in solution chemistry, it supplies full information regarding preparation of these new eco-friendly solvents, their properties and applications. The current and potential applications of deep eutectic solvents as organic reaction media, catalytic system, in biomass processing, nanotechnology and metal finishing industry, as well as for extraction and separation are extensively discussed.This highly informative and carefully presented book will appeal to practicing chemists (organic chemists, polymer chemists, biochemists) as well as chemical engineers and environmental scientists.
In recent years the fundamental concepts and applied methodologies of molecular similarity analysis have experienced a revolutionary development. Motivated by the increased degree of understanding of elementary molecular properties on the levels ranging from fundamental quantum chemistry to the complex interactions of biomolecules, and aided by the spectacular progress in computer technology and access to computer power, the area has opened up to many new ideas and new approaches. This book covers topics in quantum similarity approaches, electron density shape analysis methods, and it provides better theoretical understanding of molecular similarity. Additionally, quantitative shape analysis, especially activity relations (QShAR) and the prediction of the pharmacological or toxicological effects of molecules in the related context of quantum QSAR (QQSAR). This volume written by the experts in the various subfields of molecular similarity, provides a collection of the most recent ideas, advances, and methodologies. It is the hope of the Editors that by representing these topics within a single volume, the readers will find a balanced overview of the status of the field. We also hope that the book will serve as a tool for selecting and assessing the best approach for various new types of problems of molecular similarity that may arise and it will provide a set of easy references for further studies and applications.
The use of positive muons to simulate protons in solids is a relatively new, but already successful field of research, which exploits the unique properties of the muon. This book is a collection of papers for special issues of the Philosophical Magazine Part B and the Philosophical Magazine Transactions A, together with previously unreleased material presented at a seminar on the subject. The 30 papers here are written by an international team of experts who effectively cover both the theoretical and experimental aspects of the subject.
The first edition of this text, entitled Flame and Combustion Phenomena, was published by Professor John Bradley in 1969. Subsequent to John Bradley's untimely death, the second edition, Flame and Combustion, was published in 1985 by Professor John Barnard. The intention of my predecessors was that the book should be suitable for final year under graduates and as an introductory book about combustion phenomena for those involved in research and development in a wide range of disciplines. It is my hope that the same is true of this third edition, with particular attention paid to chemical aspects. The potential market for an introductory text has changed consider ably since the appearance of John Bradley'S monograph. There has been a considerable growth in concern for efficiency, safety and minimisation of the environmental impact of combustion, whereas the development of rocket fuels, explosives and propellants do not command the same intensity of effort as formerly. Thus, it seems prudent to shift the emphasis from some parts of the earlier texts, and to expand others that are more in line with current combustion activities."
The holding of an Advanced Study Institute on the topic of "Solid State Batteries" at this time represented a logical progression in a series of NATO-sponsored events. Summer Schools at Belgerati, Italy in 1972 and Ajaccio, Corsica in 1975 on the topic of "Solid -State IOllics" dealt with fundamental aspects of solid-state electro chemistry and materials science. The application of specific solid ionic conductors played a significant role in the Science Committee Institute on "Materials for Advanced Batteries" held at Aussois, France in 1979. Interest in these and related fields has grown substantially over this period, and is sustained today. Research and development programmes exist within universities, governmental research laboratories and industry, worldwide and a series of international conferences and collaborations have been set up. Advanced batteries, both secondary and primary, have a potentially important role o play in the development of many areas of tech nology in the late 20th century and beyond. Applications include stationary storage, vehicle traction and remote power sources, as well as industrial and domestic cordless products and consumer and military electronics. The concept of an all-so lid-state battery is not new but, until recently, their performance has precluded their use in other than specialist low power, primary, applications. Recent materials' developments, however, make the solid-state battery a real possibility in all of the application sectors mentioned above. Further, such cells offer many attractive features over alternative present-day and advanced systems." |
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