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Ruthenium Clusters on Carbon Nanofibers for Formic Acid Decomposition: Effect of Doping the Support with Nitrogen Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Original
Journal ChemCatChem
ISSN: 1867-3880 , E-ISSN: 1867-3899
Output data Year: 2015, Volume: 7, Number: 18, Pages: 2910-2917 Pages count : 8 DOI: 10.1002/cctc.201500216
Tags dehydrogenation, doping, hydrogen, ruthenium, supported catalysts
Authors Zacharska Monika 1,2 , Podyacheva Olga Yu. 3,4 , Kibis Lidiya S. 3,4 , Boronin Andrey I. 3,4 , Senkovskii Boris V. 5,6 , Gerasimov Evgeny Yu. 3 , Taran Oxana P. 3 , Ayusheev Artemiy B. 3 , Parmon Valentin N. 3,4 , Leahy J. J. 1,2 , Bulushev Dmitri A. 1,3,4
Affiliations
1 Chemical & Environmental Sciences Department University of Limerick (Ireland)
2 Materials & Surface Science Institute University of Limerick (Ireland)
3 Boreskov Institute of Catalysis SB RAS Novosibirsk 630090 (Russia)
4 Novosibirsk State University Novosibirsk 630090 (Russia)
5 Dresden University of Technology 01062 Dresden (Germany)
6 St. Petersburg State University 198504 St. Petersburg (Russia)

Funding (4)

1 Science Foundation Ireland 06/CP/E007
2 European Commission
3 The Ministry of Education and Science of the Russian Federation
4 Higher Education Authority

Abstract: The catalytic properties of 1 wt % Ru catalysts with the same mean Ru cluster size of 1.4–1.5 nm supported on herringbone-type carbon nanofibers with different N contents were compared for H2 production from formic acid decomposition. The Ru catalyst on the support with 6.8 wt % N gave a 1.5–2 times higher activity for the dehydrogenation reaction (CO2, H2) than the catalyst on the undoped support. The activity in the dehydration reaction (CO, H2O) was the same. As a result, the selectivity to H2 increased significantly from 83 to 92 % with N-doping, and the activation energies for both reactions were close (55–58 kJ mol−1). The improvement could be explained by the presence of Ru clusters stabilized by pyridinic N located on the open edges of the external surface of the carbon nanofibers. This N may activate formic acid by the formation of an adduct (>NH+HCOO−) followed by its dehydrogenation on the adjacent Ru clusters.
Cite: Zacharska M. , Podyacheva O.Y. , Kibis L.S. , Boronin A.I. , Senkovskii B.V. , Gerasimov E.Y. , Taran O.P. , Ayusheev A.B. , Parmon V.N. , Leahy J.J. , Bulushev D.A.
Ruthenium Clusters on Carbon Nanofibers for Formic Acid Decomposition: Effect of Doping the Support with Nitrogen
ChemCatChem. 2015. V.7. N18. P.2910-2917. DOI: 10.1002/cctc.201500216 publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
Dates:
Submitted: Mar 3, 2015
Published online: Jun 18, 2015
Published print: Sep 14, 2015
Identifiers:
publication_identifier.wos_identifier_type WOS:000361189400020
publication_identifier.scopus_identifier_type 2-s2.0-84941317327
publication_identifier.rinz_identifier_type 24948808
publication_identifier.accession_number_identifier_type 2015:1034210
publication_identifier.chemical_accession_number_identifier_type 163:357162
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