| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9614655 | Journal of Molecular Catalysis A: Chemical | 2005 | 12 Pages |
Abstract
Formation of catalytically active species in the system AlEt3-Co(acac)2 known as a catalyst for hydrogenation and polymerization is discussed based on the results of chemical, kinetic and physico-chemical (ESR, IR, UV, TEM, XRD) analysis. The formation of nanoscale cobalt metal particles is demonstrated. The particles are assumed to comprise the metal core and a stabilizing coating consisting of AlEt3, Et2Al(acac) and the products of their transformations. The dependence of hydrogenation activity of the catalytic system on the Al/Co ratio passes through maximum, that is explained by changes of the composition of the nanoparticle stabilizing coating.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
F.K. Shmidt, L.O. Nindakova, B.A. Shainyan, V.V. Saraev, N.N. Chipanina, V.A. Umanetz,