Study on the metal-support interaction in the Ru/C catalysts under reductive conditions

Kristina N. Iost, Vadim A. Borisov, Victor L. Temerev, Yury V. Surovikin, Polina E. Pavluchenko, Mikhail V. Trenikhin, Anastasiya A. Lupanova, Aleksey B. Arbuzov, Dmitry A. Shlyapin, Pavel G. Tsyrulnikov, Aleksey A. Vedyagin

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A metal-support interaction in the carbon-supported ruthenium samples in a hydrogen medium was studied. The carbonaceous graphite-like composite material Sibunit with a specific surface area (SSA) of 320 m2/g was used as a support. The support was additionally treated at 1900 °C in an inert medium to provide the graphitization of the amorphous carbon. This procedure drops the SSA value dramatically. Both the initial and graphitized supports were also kept in a nitric acid to increase the amount of the oxygen-containing surface groups. Ruthenium was deposited from a ruthenium (II) ammonia complex. The strongest metal-support interaction resulting in an intensive hydrogenation of the carbon support was observed in the case of oxidized support. Two explanations of the phenomenon were proposed. First of all, methanation of the oxygen-containing surface groups contacting with the metal particle occurs at lower temperature and with higher rate if compared with other carbon species. Secondly, these groups provide higher hydrophilicity of the support and facilitate the formation of the well dispersed and finely distributed ruthenium particles. The graphitization procedure was found to stabilize the samples towards the hydrogenation process.

Original languageEnglish
Pages (from-to)95-101
Number of pages7
JournalSurfaces and Interfaces
Volume12
DOIs
Publication statusPublished - 1 Sep 2018

Fingerprint

Ruthenium
Catalyst supports
Metals
Catalysts
Graphitization
Carbon
Specific surface area
Hydrogenation
Oxygen
Methanation
Nitric Acid
Graphite
Amorphous carbon
Hydrophilicity
Nitric acid
Ammonia
Hydrogen
Composite materials
Temperature

Keywords

  • Carbonaceous support Sibunit
  • Metal-support interaction
  • Methanation
  • Ruthenium catalysts
  • Thermal stability

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

Cite this

Iost, K. N., Borisov, V. A., Temerev, V. L., Surovikin, Y. V., Pavluchenko, P. E., Trenikhin, M. V., ... Vedyagin, A. A. (2018). Study on the metal-support interaction in the Ru/C catalysts under reductive conditions. Surfaces and Interfaces, 12, 95-101. https://doi.org/10.1016/j.surfin.2018.05.003

Study on the metal-support interaction in the Ru/C catalysts under reductive conditions. / Iost, Kristina N.; Borisov, Vadim A.; Temerev, Victor L.; Surovikin, Yury V.; Pavluchenko, Polina E.; Trenikhin, Mikhail V.; Lupanova, Anastasiya A.; Arbuzov, Aleksey B.; Shlyapin, Dmitry A.; Tsyrulnikov, Pavel G.; Vedyagin, Aleksey A.

In: Surfaces and Interfaces, Vol. 12, 01.09.2018, p. 95-101.

Research output: Contribution to journalArticle

Iost, KN, Borisov, VA, Temerev, VL, Surovikin, YV, Pavluchenko, PE, Trenikhin, MV, Lupanova, AA, Arbuzov, AB, Shlyapin, DA, Tsyrulnikov, PG & Vedyagin, AA 2018, 'Study on the metal-support interaction in the Ru/C catalysts under reductive conditions', Surfaces and Interfaces, vol. 12, pp. 95-101. https://doi.org/10.1016/j.surfin.2018.05.003
Iost KN, Borisov VA, Temerev VL, Surovikin YV, Pavluchenko PE, Trenikhin MV et al. Study on the metal-support interaction in the Ru/C catalysts under reductive conditions. Surfaces and Interfaces. 2018 Sep 1;12:95-101. https://doi.org/10.1016/j.surfin.2018.05.003
Iost, Kristina N. ; Borisov, Vadim A. ; Temerev, Victor L. ; Surovikin, Yury V. ; Pavluchenko, Polina E. ; Trenikhin, Mikhail V. ; Lupanova, Anastasiya A. ; Arbuzov, Aleksey B. ; Shlyapin, Dmitry A. ; Tsyrulnikov, Pavel G. ; Vedyagin, Aleksey A. / Study on the metal-support interaction in the Ru/C catalysts under reductive conditions. In: Surfaces and Interfaces. 2018 ; Vol. 12. pp. 95-101.
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