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Nanometer-Sized MoS2 Clusters on Graphene Flakes for Catalytic Formic Acid Decomposition Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Original
Journal ACS Catalysis
ISSN: 2155-5435
Output data Year: 2014, Volume: 4, Number: 11, Pages: 3950-3956 Pages count : 7 DOI: 10.1021/cs500943b
Tags formic acid decomposition, graphene, hydrogen production, MoS2 clusters, structure
Authors Koroteev Victor O. 1,2 , Bulushev Dmitri A. 3,4 , Chuvilin Andrey L. 5,6 , Okotrub Alexander V. 1,2 , Bulusheva Lyubov G. 1,2
Affiliations
1 Nikolaev Institute of Inorganic Chemistry, SB RAS, 3 Acad. Lavrentiev ave., 630090 Novosibirsk, Russia
2 Novosibirsk State University, 2 Pirogov str., 630090 Novosibirsk, Russia
3 Chemical & Environmental Sciences Department, University of Limerick, Limerick, Ireland
4 Boreskov Institute of Catalysis, SB RAS, 5 Acad. Lavrentiev ave., 630090 Novosibirsk, Russia
5 CIC nanoGUNE Consolider, E-20018 San Sebastian, Spain
6 IKERBASQUE, Basque Foundation for Science, Bilbao, Spain

Funding (3)

1 Science Foundation Ireland 06/CP/E007
2 European Commission 295180 FP7-PEOPLE-2011-IRSES
3 Russian Foundation for Basic Research 14-03-31633 (01201451880)

Abstract: MoS2 was deposited on graphene flakes via decomposition of MoS3 in vacuum at different temperatures (500–800 °C). The materials obtained were tested for catalytic formic acid decomposition, giving mainly hydrogen and carbon dioxide. According to atom-resolved transmission electron microscopy study, a considerable amount of MoS2 clusters with a mean size of 1 nm was formed on the graphene surface at 500 °C. Simulation of the structure of a cluster revealed the presence of Mo-edge atoms. Raising the preparation temperature up to 800 °C led to agglomeration of MoS2 clusters and formation of thin crystalline MoS2 particles 20–30 nm in size. The sample enriched with the MoS2 clusters showed 6 times higher catalytic activity at 160 °C than the sample with the crystalline MoS2 particles. This demonstrates that the observed nanometer-sized MoS2 clusters are responsible for catalysi
Cite: Koroteev V.O. , Bulushev D.A. , Chuvilin A.L. , Okotrub A.V. , Bulusheva L.G.
Nanometer-Sized MoS2 Clusters on Graphene Flakes for Catalytic Formic Acid Decomposition
ACS Catalysis. 2014. V.4. N11. P.3950-3956. DOI: 10.1021/cs500943b publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
Dates:
Submitted: Jul 2, 2014
Accepted: Sep 10, 2014
Published online: Oct 7, 2014
Published print: Nov 7, 2014
Identifiers:
publication_identifier.wos_identifier_type WOS:000344639300018
publication_identifier.scopus_identifier_type 2-s2.0-84909982309
publication_identifier.rinz_identifier_type 24001675
publication_identifier.accession_number_identifier_type 2014:1630931
publication_identifier.chemical_accession_number_identifier_type 161:617982
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