The activity of carbonyl cluster derived Co-Ru/SiO2 and Co-Ru/SiO2 catalysts in CO hydrogenation

Jari Kiviaho (Corresponding Author), Matti Reinikainen, Marita Niemelä, Kirsi Kataja, Sirpa Jääskeläinen

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

We studied systematically the use of tetranuclear cobalt, cobalt-ruthenium, cobalt-rhodium and rhodium carbonyl clusters as catalyst precursors. The catalytic activities and the product distributions of the hydrogenation of carbon monoxide over Co4-nRunSiO2 and Co4-nRunSiO2  catalysts (where n = O-4) and Co4-nRunSiO2  and Co4-nRunSiO2  catalysts derived from the transition-metal carbonyl clusters were compared. Activities were highest for the catalysts derived from homometallic clusters, and lowest for catalysts with 1:1 ratio of Co/Ru or Co/Rh. Interestingly enough, the highly active homometallic cobalt catalyst was the most resistant to deactivation. On Co4-nRunSiO2  catalysts the deactivation was stronger on bimetallic sites and on the Co4-nRunSiO2  catalysts the deactivation was closely related to the presence of ruthenium. The selectivities for oxygenated compounds were clearly promoted by the bimetallic sites of Co-Rh catalysts. This result is very plausible since the probability to find dual active sites responsible for the formation of oxygenates is greater in bimetallic than in homometallic catalysts.
Original languageEnglish
Pages (from-to)187-195
Number of pages9
JournalJournal of Molecular Catalysis A: Chemical
Volume106
Issue number3
DOIs
Publication statusPublished - 1996
MoE publication typeA1 Journal article-refereed

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Carbon Monoxide
Hydrogenation
hydrogenation
Cobalt
catalysts
Catalysts
cobalt
deactivation
Rhodium
Ruthenium
rhodium
ruthenium
Carbon monoxide
carbon monoxide
Transition metals
catalytic activity
Catalyst activity
selectivity
transition metals
products

Cite this

@article{f8e3f9975e294e31bf4684a3e8c1aa58,
title = "The activity of carbonyl cluster derived Co-Ru/SiO2 and Co-Ru/SiO2 catalysts in CO hydrogenation",
abstract = "We studied systematically the use of tetranuclear cobalt, cobalt-ruthenium, cobalt-rhodium and rhodium carbonyl clusters as catalyst precursors. The catalytic activities and the product distributions of the hydrogenation of carbon monoxide over Co4-nRunSiO2 and Co4-nRunSiO2  catalysts (where n = O-4) and Co4-nRunSiO2  and Co4-nRunSiO2  catalysts derived from the transition-metal carbonyl clusters were compared. Activities were highest for the catalysts derived from homometallic clusters, and lowest for catalysts with 1:1 ratio of Co/Ru or Co/Rh. Interestingly enough, the highly active homometallic cobalt catalyst was the most resistant to deactivation. On Co4-nRunSiO2  catalysts the deactivation was stronger on bimetallic sites and on the Co4-nRunSiO2  catalysts the deactivation was closely related to the presence of ruthenium. The selectivities for oxygenated compounds were clearly promoted by the bimetallic sites of Co-Rh catalysts. This result is very plausible since the probability to find dual active sites responsible for the formation of oxygenates is greater in bimetallic than in homometallic catalysts.",
author = "Jari Kiviaho and Matti Reinikainen and Marita Niemel{\"a} and Kirsi Kataja and Sirpa J{\"a}{\"a}skel{\"a}inen",
note = "Project code: KET2415",
year = "1996",
doi = "10.1016/1381-1169(95)00249-9",
language = "English",
volume = "106",
pages = "187--195",
journal = "Journal of Molecular Catalysis A: Chemical",
issn = "1381-1169",
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number = "3",

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The activity of carbonyl cluster derived Co-Ru/SiO2 and Co-Ru/SiO2 catalysts in CO hydrogenation. / Kiviaho, Jari (Corresponding Author); Reinikainen, Matti; Niemelä, Marita; Kataja, Kirsi; Jääskeläinen, Sirpa.

In: Journal of Molecular Catalysis A: Chemical, Vol. 106, No. 3, 1996, p. 187-195.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - The activity of carbonyl cluster derived Co-Ru/SiO2 and Co-Ru/SiO2 catalysts in CO hydrogenation

AU - Kiviaho, Jari

AU - Reinikainen, Matti

AU - Niemelä, Marita

AU - Kataja, Kirsi

AU - Jääskeläinen, Sirpa

N1 - Project code: KET2415

PY - 1996

Y1 - 1996

N2 - We studied systematically the use of tetranuclear cobalt, cobalt-ruthenium, cobalt-rhodium and rhodium carbonyl clusters as catalyst precursors. The catalytic activities and the product distributions of the hydrogenation of carbon monoxide over Co4-nRunSiO2 and Co4-nRunSiO2  catalysts (where n = O-4) and Co4-nRunSiO2  and Co4-nRunSiO2  catalysts derived from the transition-metal carbonyl clusters were compared. Activities were highest for the catalysts derived from homometallic clusters, and lowest for catalysts with 1:1 ratio of Co/Ru or Co/Rh. Interestingly enough, the highly active homometallic cobalt catalyst was the most resistant to deactivation. On Co4-nRunSiO2  catalysts the deactivation was stronger on bimetallic sites and on the Co4-nRunSiO2  catalysts the deactivation was closely related to the presence of ruthenium. The selectivities for oxygenated compounds were clearly promoted by the bimetallic sites of Co-Rh catalysts. This result is very plausible since the probability to find dual active sites responsible for the formation of oxygenates is greater in bimetallic than in homometallic catalysts.

AB - We studied systematically the use of tetranuclear cobalt, cobalt-ruthenium, cobalt-rhodium and rhodium carbonyl clusters as catalyst precursors. The catalytic activities and the product distributions of the hydrogenation of carbon monoxide over Co4-nRunSiO2 and Co4-nRunSiO2  catalysts (where n = O-4) and Co4-nRunSiO2  and Co4-nRunSiO2  catalysts derived from the transition-metal carbonyl clusters were compared. Activities were highest for the catalysts derived from homometallic clusters, and lowest for catalysts with 1:1 ratio of Co/Ru or Co/Rh. Interestingly enough, the highly active homometallic cobalt catalyst was the most resistant to deactivation. On Co4-nRunSiO2  catalysts the deactivation was stronger on bimetallic sites and on the Co4-nRunSiO2  catalysts the deactivation was closely related to the presence of ruthenium. The selectivities for oxygenated compounds were clearly promoted by the bimetallic sites of Co-Rh catalysts. This result is very plausible since the probability to find dual active sites responsible for the formation of oxygenates is greater in bimetallic than in homometallic catalysts.

U2 - 10.1016/1381-1169(95)00249-9

DO - 10.1016/1381-1169(95)00249-9

M3 - Article

VL - 106

SP - 187

EP - 195

JO - Journal of Molecular Catalysis A: Chemical

JF - Journal of Molecular Catalysis A: Chemical

SN - 1381-1169

IS - 3

ER -