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Mikrostrukturen aus Metall/Träger‐Wechselwirkungsprozessen an heterogenen Katalysatoren
Author(s) -
Lamber Ryszard,
Jaeger Nils,
SchulzEkloff Günter
Publication year - 1991
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.330630707
Subject(s) - metal , chemical engineering , catalysis , inert , silicon , materials science , graphite , nanotechnology , chemistry , metallurgy , organic chemistry , engineering
Abstract Microstructures resulting from metal‐support interactions on heterogeneous catalysts. The term metalsupport interaction covers a large number of different phenomena due to forces of adhesion, charge transfer including the formation of chemical bonds, covering of the metal surface by reduced species from the support or the formation of new phases at the interfaces. The effect of such interactions on the efficiency and stability of catalysts is studied for numerous metal‐support systems. The formation of silicon‐metal alloys on silica, which has previously been considered as an inert carrier, as well as the formation of graphite on charcoal‐supported metal dispersions are described as examples of special interest. The new phases are characterized by methods of the analytical electron microscopy.