"Preface Properties of high surface area materials and their efficiency of application strongly depend on boundary effects and interfacial phenomena. These phenomena include diffusion of adsorbate and solvent molecules at the surface of the adsorbent, physisorption and chemisorption, dissolution, solvation of solutes and solid surfaces, surface reactions, heterogeneous catalysis, relaxation and segmental dynamics of adsorbed macromolecules, phase transitions, crystallization, and melting, among others. Many of the physicochemical characterization methods give very useful and complementary information regarding complex interfacial phenomena. These methods include nuclear magnetic resonance (NMR) spectroscopy, infrared (FTIR) and other optical spectroscopic methods, differential scanning calorimetry (DSC), adsorption of probe compounds, x-ray diffraction (XRD), Auger electron spectroscopy, ultrasoft x-ray emission spectroscopy, x-ray photoelectron spectroscopy (XPS), dielectric relaxation spectroscopy (DRS), and thermally stimulated depolarization current (TSDC), among others. Among these, NMR spectroscopy is the most universal, yielding very detailed structural information regarding molecules, solids, and interfaces. NMR provides information on molecular diffusion, phase transitions, melting, crystallization, relaxation, adsorption, reaction kinetics, and so on. There are a number of NMR techniques for measuring pore sizes, the two main being NMR cryoporometry, which is based on the pore-size dependence of the melting temperature of a mobile phase, and NMR relaxometry, which is based on transverse relaxation times that are sensitive to confined-space effects"-- Our orders are sent from our warehouse locally or directly from our international distributors to allow us to offer you the best possible price and delivery time. Codice inventario libreria
Properties and applications of high surface area materials depend on interfacial phenomena, including diffusion, sorption, dissolution, solvation, surface reactions, catalysis, and phase transitions. Among the physicochemical methods that give useful information regarding these complex phenomena, nuclear magnetic resonance (NMR) spectroscopy is the most universal, yielding detailed structural data regarding molecules, solids, and interfaces. Nuclear Magnetic Resonance Studies of Interfacial Phenomena summarizes NMR research results collected over the past three decades for a wide range of materials―from nanomaterials and nanocomposites to biomaterials, cells, tissues, and seeds.
This book describes the applications of important new NMR spectroscopic methods to a variety of useful materials and compares them with results from other techniques such as adsorption, differential scanning calorimetry, thermally stimulated depolarization current, dielectric relaxation spectroscopy, infrared spectroscopy, optical microscopy, and small-angle and wide-angle x-ray scattering. The text explores the application of NMR spectroscopy to examine interfacial phenomena in objects of increasing complexity, beginning with unmodified and modified silica materials. It then describes properties of various mixed oxides with comparisons to individual oxides and also describes carbon materials such as graphite and carbon nanotubes.
Chapters deal with carbon–mineral hybrids and their mosaic surface structures, and interfacial phenomena at the surface of natural and synthetics polymers. They also explore a variety of biosystems, which are much more complex, including biomacromolecules (proteins, DNA, and lipids), cells and tissues, and seeds and herbs. The authors cover trends in interfacial phenomena investigations, and the final chapter describes NMR and other methods used in the book. This text presents a comprehensive description of a large array of hard and soft materials, allowing the analysis of the structure–property relationships and generalities on the interfacial behavior of materials and adsorbates.
About the Author:
Vladimir M. Gun’ko, DSc, is a professor and head of the Department of Amorphous and Structurally Ordered Oxides, Chuiko Institute of Surface Chemistry of the National Academy of Sciences of Ukraine. He has coauthored 3 books, edited 1 book, published about 400 papers, and made about 200 presentations at conferences. He also serves on the editorial board of four journals and Surface, a periodic book published one to two times per year. He is a member of the American Nano Society (USA) and an electronic member of The Royal Society of Chemistry (UK). Gun’ko’s research interests include quantum and molecular mechanics and dynamics, development of computational algorithms in molecular physics and surface chemistry, modeling of interfacial phenomena, and synthesis and characterization of nanomaterials.
Vladimir V. Turov, DSc, is a professor and head of the Department of Biomedical Problems of Surface, Chuiko Institute of Surface Chemistry of the National Academy of Sciences of Ukraine. He has coauthored 3 books, edited 1 book, published about 250 papers, and has presented at about 100 conferences. He serves on the editorial board of the journal Chemistry, Physics & Technology of Surface and the periodic book Surface, published one to two times per year. He has been a member of the Society of Chemistry of Ukraine since 1986. Turov’s research interests include molecular interactions in confined space, low-temperature NMR spectroscopy of porous nanomaterials and bio-objects, and water structure in complex mixtures.
Titolo: Nuclear Magnetic Resonance Studies of ...
Casa editrice: Taylor & Francis Inc
Data di pubblicazione: 2013
Condizione libro: New
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