Anionic Ruthenium Cluster K2[Ru4(CO)13] as Precursor of Catalytically Active Ruthenium Particles and Potassium Promoter. New Efficient Ammonia Synthesis Catalysts Based on Supported K2[Ru4(CO)13] Full article
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Journal of Molecular Catalysis A: Chemical
ISSN: 1381-1169 |
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| Output data | Year: 1998, Volume: 132, Number: 2-3, Pages: 263-265 Pages count : 3 DOI: 10.1016/S1381-1169(97)00245-8 | ||||
| Tags | Ammonia synthesis, Artionic ruthenium carbonyl clusters, Supported catalysts | ||||
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Abstract:
New efficient potassium-promoted catalysts for ammonia synthesis are reported. For preparation of the catalysts, anionic ruthenium cluster K2[Ru4(CO)13] was used as a precursor of both catalytically active metal particles and potassium promoter while magnesium oxide and new original graphite-like active carbon CFC-1 were employed as supports. The catalysts found are capable of catalysing the ammonia synthesis starting from 250°C (1 atm) and exceed markedly in their activity at 300–400°C and atmospheric pressure the industrial ammonia synthesis catalyst (SA-1). Especially effective is the K2[Ru4(CO)13] catalyst on MgO. The replacement of MgO by γ-Al2O3 and SiO2 results in a sharp decrease in activity of the catalyst in ammonia synthesis. This indicates the importance of the basic properties of a support for the achievement of high ammonia synthesis rates.
Cite:
Yunusov S.M.
, Moroz B.L.
, Ivanova A.S.
, Likholobov V.A.
, Shur V.B.
Anionic Ruthenium Cluster K2[Ru4(CO)13] as Precursor of Catalytically Active Ruthenium Particles and Potassium Promoter. New Efficient Ammonia Synthesis Catalysts Based on Supported K2[Ru4(CO)13]
Journal of Molecular Catalysis A: Chemical. 1998. V.132. N2-3. P.263-265. DOI: 10.1016/S1381-1169(97)00245-8 WOS Scopus РИНЦ ANCAN OpenAlex
Anionic Ruthenium Cluster K2[Ru4(CO)13] as Precursor of Catalytically Active Ruthenium Particles and Potassium Promoter. New Efficient Ammonia Synthesis Catalysts Based on Supported K2[Ru4(CO)13]
Journal of Molecular Catalysis A: Chemical. 1998. V.132. N2-3. P.263-265. DOI: 10.1016/S1381-1169(97)00245-8 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Submitted: | Mar 20, 1997 |
| Accepted: | Nov 5, 1997 |
| Published print: | Jun 15, 1998 |
| Published online: | Oct 8, 1998 |
Identifiers:
| Web of science: | WOS:000074430600013 |
| Scopus: | 2-s2.0-0032526313 |
| Elibrary: | 13284077 |
| Chemical Abstracts: | 1998:375722 |
| Chemical Abstracts (print): | 129:45848 |
| OpenAlex: | W1973463406 |