Low temperature surface chemistry and nanostructuresстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The new scientific field of low temperature surface chemistry, which combines the low temperature chemistry (cryochemistry) and surface chemistry approaches, is reviewed in this paper. One of the most exciting achievements in this ?eld of science is the development of methods to create highly ordered hybrid nanosized structures on di?erent organic and inorganic surfaces and to encapsulate nanosized metal particles in organic and polymer matrices. We consider physical and chemical behaviour for the systems obtained by co-condensation of the components vapours on the surfaces cooled down to 4–10 and 70–100 K. In particular the size e?ect of both types, the number of atoms in the reactive species structure and the thickness of growing co-condensate ?lm, on the chemical activity of the system is analysed in detail. The e?ect of the internal mechanical stresses on the growing interfacial co-condensate ?lm formation and on the generation of fast (explosive) spontaneous reactions at low temperatures is discussed. The examples of unusual chemical interactions of metal atoms, clusters and nanosized particles, obtained in co-condensate ?lms on the cooled surfaces under di?erent conditions, are presented. The examples of highly ordered surface and volume hybrid nanostructures formation are analysed. 2001 Elsevier Science B.V. All rights reserved.