Formation of the cobalt hydrogenation catalysts at the action of lithium aluminum hydride and lithium tri(tert-butoxy)aluminohydride and their properties View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2012-08

AUTHORS

F. K. Schmidt, Yu. Yu. Titova, L. B. Belykh, V. A. Umanets, S. S. Khutsishvili

ABSTRACT

The interaction of Co(acac)2(3) with LiAlH4 or LiAlH(t-BuO)3 was studied using NMR, UV, IR, ESR spectroscopy, electron microscopy, and volumometry. The basic stages of formation of cobalt catalysts for hydrogenation were suggested. The formation of the nanoparticles that are active in the hydrogenation process is shown to occur at a ratio of reagents 5 ≤ Red/Co ≤ 12. The nanoparticles are stabilized by an excess of LiAlH4 or LiAlH(t-BuO)3, as well as by the products of their catalytic decomposition under the action of cobalt in the reduced state. At the ratio LiAlH4 / Co> 12 to obtain the particles active in catalysis their activation by a proton-donor compound is required. More... »

PAGES

1334-1341

Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/s1070363212080026

DOI

http://dx.doi.org/10.1134/s1070363212080026

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1049755135


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