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Descripción Soft cover. Condición: New. Nº de ref. del artículo: ABE-1691051192896
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Descripción PAP. Condición: New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000. Nº de ref. del artículo: L0-9783639169881
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Descripción Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Current efforts to design more efficient gasseparation membranes are hampered by an incompleteunderstanding of material structure and of themicroscopic features that control gas diffusion inmembranes. In this study we seek to developtechniques to characterize these features, and tostudy the effects of thermal treatment on theproperties ofmicroporous silica membranes. We make the importantdistinction between traditional characterizationtechniques, which characterize void space, and sizeexclusion experiments that probe the small subset offeatures that actually control diffusion. Theresults of size exclusion, gas adsorption, 129Xe NMR,and transport experiments are combined to propose amodel of the amorphous microporous silica structure.Thermal treatment is found to have almost no effecton void space, while profoundly affecting transportrates. We attribute the transport changes to theremoval of water from the system, which increasespore interconnectivity thereby allowing alternatediffusion pathways. 260 pp. Englisch. Nº de ref. del artículo: 9783639169881
Descripción Kartoniert / Broschiert. Condición: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Wagg Lawrence M.Larry Wagg is a research engineer with Matheson Tri-Gas Inc. innLongmont, Colorado. His interests include Fiats, woodworking,nUltimate Frisbee, and Cygnus (see photo). J. Douglas (Doug) Waynis a Professor of Chemica. Nº de ref. del artículo: 4963742
Descripción Taschenbuch. Condición: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Current efforts to design more efficient gasseparation membranes are hampered by an incompleteunderstanding of material structure and of themicroscopic features that control gas diffusion inmembranes. In this study we seek to developtechniques to characterize these features, and tostudy the effects of thermal treatment on theproperties ofmicroporous silica membranes. We make the importantdistinction between traditional characterizationtechniques, which characterize void space, and sizeexclusion experiments that probe the small subset offeatures that actually control diffusion. Theresults of size exclusion, gas adsorption, 129Xe NMR,and transport experiments are combined to propose amodel of the amorphous microporous silica structure.Thermal treatment is found to have almost no effecton void space, while profoundly affecting transportrates. We attribute the transport changes to theremoval of water from the system, which increasespore interconnectivity thereby allowing alternatediffusion pathways. Nº de ref. del artículo: 9783639169881
Descripción PAP. Condición: New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000. Nº de ref. del artículo: L0-9783639169881