Liquid-phase hydrogenation of benzaldehyde over Pd-Ru/C catalysts: Synergistic effect between supported metals

Liquid-phase hydrogenation of benzaldehyde over Pd-Ru/C catalysts: Synergistic effect between supported metals Full article

Conference

XII European Congress on Catalysis ”Catalysis: Balancing the use of fossil and renewable resources”
30 Aug - 4 Sep 2015 , Казань

Journal

Catalysis Today
ISSN: 0920-5861 , E-ISSN: 1873-4308

Output data

Year: 2017, Volume: 279, Pages: 2-9 Pages count : 8 DOI: 10.1016/j.cattod.2016.07.022

Tags

Benzaldehyde, Catalytic hydrogenation, Bimetallic catalysts, Carbon supports, Synergistic effect

Authors

Mironenko Roman M. ^1,2 , Belskaya Olga B. ^1,3 , Gulyaeva Tatyana I. ¹ , Trenikhin Mikhail V. ¹ , Nizovskii Alexander I. ^3,4 , Kalinkin Alexander V. ⁴ , Bukhtiyarov Valerii I. ⁴ , Lavrenov Alexander V. ¹ , Likholobov Vladimir A. ^1,3,5

Affiliations

1	Institute of Hydrocarbons Processing, Siberian Branch of the Russian Academy of Sciences
2	Dostoevsky Omsk State University
3	Omsk State Technical University
4	Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences
5	Omsk Scientific Center, Siberian Branch of the Russian Academy of Sciences

Funding (1)

Russian Foundation for Basic Research

12-03-00153а

Bimetallic Pd-Ru/C catalysts prepared with different carbon supports were shown to be much more active in the liquid-phase hydrogenation of benzaldehyde in comparison with their monometallic analogs. In the case of systems based on nanoglobular carbon, the synergistic effect manifested itself as an increased selectivity for benzyl alcohol (86–90%) at a complete conversion of benzaldehyde, whereas the catalysts containing carbon nanotubes were highly active in hydrogenolysis of the C O bonds, which caused an increased yield of toluene (up to 56%). The synergistic effect between palladium and ruthenium in the reaction under study can be related to the changes in the electronic and dispersion state of the supported metals upon interaction with each other and formation of Pd-Ru alloy. In terms of the electronic factor, the enhanced catalytic performance of bimetallic systems can be a result of facilitation of electrophilic activation of the C-O bond in benzaldehyde owing to an increased fraction of the electron-deficient palladium species. The nature of carbon support was shown to affect the electronic state of supported metals and thus catalytic properties of bimetallic Pd-Ru/C systems

Mironenko R.M. , Belskaya O.B. , Gulyaeva T.I. , Trenikhin M.V. , Nizovskii A.I. , Kalinkin A.V. , Bukhtiyarov V.I. , Lavrenov A.V. , Likholobov V.A.
Liquid-phase hydrogenation of benzaldehyde over Pd-Ru/C catalysts: Synergistic effect between supported metals
Catalysis Today. 2017. V.279. P.2-9. DOI: 10.1016/j.cattod.2016.07.022 WOS Scopus РИНЦ OpenAlex

Submitted:	Nov 11, 2015
Accepted:	Jul 27, 2016
Published online:	Aug 4, 2016
Published print:	Jan 1, 2017

Web of science:	WOS:000388778100002
Scopus:	2-s2.0-84992486272
Elibrary:	28264944
OpenAlex:	W2503949749

DB	Citing
Scopus	52
Web of science	46
Elibrary	21
OpenAlex	55