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Preparation of Ru/Carbon - Catalysts for Ammonia Synthesis Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Original
Conference Preparation of Catalysts VII : 7th International Symposium on Scientific Bases for the Preparation of Heterogeneous Catalysts
01-04 Sep 1998 , Louvain-Ia-Neuve
Source Preparation of Catalysts VII : Proceedings of the 7th International Symposium on Scientific Bases for the Preparation of Heterogeneous Catalysts, 1-4 September 1998, Louvain-la-Neuve, Belgium
Compilation, 1998. 987 c. ISBN 978-0-444-50031-1.
Journal Studies in Surface Science and Catalysis
ISSN: 0167-2991
Output data Year: 1998, Volume: 118, Pages: 213-218 Pages count : 6 DOI: 10.1016/S0167-2991(98)80184-5
Tags Ammonia synthesis, Graphite-like carbon, Ruthenium, Supported catalysts
Authors Dobrynkin N.M. 1 , Tsyrulnikov P.G. 2 , Noskov A.S. 1 , Shitova N.B. 2 , Polukhina I.A. 1 , Savelieva G.G. 2 , Duplyakin V.K. 2 , Likholobov V.A. 1
Affiliations
1 Boreskov Institute of Catalysis, Novosibirsk-90, 630090
2 Omsk Branch of the Boreskov, Institute of Catalysis, Omsk, 644040

Abstract: The problems of creation ruthenium-carbon catalysts for ammonia synthesis from initial compounds of ruthenium and alkali metals, accessible and convenient for use, are surveyed in order to prepare the new generation ammonia catalyst for the industrial application. Graphite-like active carbon ‘Sibunit’ was used as a support for preparation of the catalysts. Potassium and cesium as promoters were introduced through hydroxides. Ruthenium (II) and (III) complexes with N-containing polydentate organic ligands are used for direct regulation of a dispersity of ruthenium-potassium and ruthenium-cesium systems. The important role at preparation of the active catalysts is stipulated by a nature of inner sphere ligand and even outer sphere of a counter-ion in the ruthenium complexes. It has been found that samples synthesized from Cl-free Ru precursors possess a considerably high activity in the ammonia synthesis at temperatures 573÷673 K, pressure 5–50 bar, N2:H2 = 1:3, than that prepared from Cl-containing compounds. It is assumed that the most active are catalytic centres, containing ruthenium in low degrees of oxidation.
Cite: Dobrynkin N.M. , Tsyrulnikov P.G. , Noskov A.S. , Shitova N.B. , Polukhina I.A. , Savelieva G.G. , Duplyakin V.K. , Likholobov V.A.
Preparation of Ru/Carbon - Catalysts for Ammonia Synthesis
In compilation Preparation of Catalysts VII : Proceedings of the 7th International Symposium on Scientific Bases for the Preparation of Heterogeneous Catalysts, 1-4 September 1998, Louvain-la-Neuve, Belgium. 1998. – C.213-218. – ISBN 978-0-444-50031-1. DOI: 10.1016/S0167-2991(98)80184-5 publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
Dates:
Published print: Jan 1, 1998
Published online: Sep 2, 2007
Identifiers:
publication_identifier.wos_identifier_type WOS:000076264000022
publication_identifier.scopus_identifier_type 2-s2.0-3843056565
publication_identifier.rinz_identifier_type 13289697
publication_identifier.accession_number_identifier_type 1998:665439
publication_identifier.chemical_accession_number_identifier_type 129:250760
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