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Influence of aluminum particle sizes on their surface chemical characteristics, investigated by probe gas temperature programmed desorption mass spectrometry
Author(s) -
Jigatch Alexey N.,
Leipunsky Ilia O.,
Kuskov Michael L.,
Verzhbitskaya Tatiana M.
Publication year - 1999
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/(sici)1097-0231(19991115)13:21<2109::aid-rcm761>3.0.co;2-d
Subject(s) - chemistry , adsorption , desorption , particle (ecology) , molecule , deuterium , decomposition , mass spectrometry , acetic acid , analytical chemistry (journal) , ethylene , chemical reaction , aluminium , inorganic chemistry , chemical engineering , organic chemistry , chromatography , catalysis , oceanography , physics , geology , quantum mechanics , engineering
A technique is described for the production, sampling, and investigation of the surface chemical reaction characteristics of nanosized particles of metals. Reactions of aluminum (Al) particles with average sizes 5, 37 and 100 nm with water (ordinary and deuterated), acetic acid, carbon dioxide and ethylene, were investigated. Adsorption with decomposition of adsorbate molecules, and with formation of short quasi‐polymer chains in the case of organic molecules, was observed. A dependence of energy distribution characteristics of surface active sites on particle size was revealed. A trend was observed that active surface sites of very small particles (less than 10 nm) form stronger bonds with adsorbed molecules. Copyright © 1999 John Wiley & Sons, Ltd.