Study of Supported Cobalt Catalysts Prepared with the Use of Dicobalt Octacarbonyl | Sciact - CRIS-system of Boreskov Institute of Catalysis

Study of Supported Cobalt Catalysts Prepared with the Use of Dicobalt Octacarbonyl Full article

Journal

C1 Molecule Chemistry
ISSN: 0275-7567

Output data

Year: 1984, Volume: 1, Number: 2, Pages: 115-135 Pages count : 21

Authors

Lisitsyn A.S. ¹ , Golovin A.V. ¹ , Kuznetsov V.L. ¹ , Ermakov Yu.I. ¹

Affiliations

1	Institute of Catalysis, Siberian Division of the U.S.S.R. Academy of Sciences, Novosibirsk, U.S.S.R.

Catalysts prepared by thermal decomposition of Co2(CO)8 (I) on SiO2, Al2O3 and TiO2 supports were characterized by a static magnetic method, ferromagnetic resonance (FMR), IR-spectroscopy, chemisorption and temperature-programmed reduction. Fast pyrolysis of the supported I produced finely dispersed superparamagnetic particles of metallic Co characterized by a narrow FMR signal. Their size depended on the Co content and the support used. Catalysts prepared by decomposing I were 2-10 times more active in CO hydrogenation than supported catalysts prepared by conventional impregnation from Co(NO3)2, although the Schulz-Flory distribution of C4+ products was observed in both cases. Increasing Co dispersion decreased both the specific catalytic activity and the probability of chain propagation. Co/Al2O3 systems were slightly less active than those based on SiO2 and TiO2. The average mol. wt. of hydrocarbons produced was the highest on TiO2.

Lisitsyn A.S. , Golovin A.V. , Kuznetsov V.L. , Ermakov Y.I.
Study of Supported Cobalt Catalysts Prepared with the Use of Dicobalt Octacarbonyl
C1 Molecule Chemistry. 1984. V.1. N2. P.115-135. РИНЦ ANCAN

Elibrary:	41401329
Chemical Abstracts:	1985:504295
Chemical Abstracts (print):	103:104295

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