EXAFS Study of Pd/Ga2O3 Model Catalysts of Selective Liquid-Phase Hydrogenation of Acetylene to Ethylene

EXAFS Study of Pd/Ga2O3 Model Catalysts of Selective Liquid-Phase Hydrogenation of Acetylene to Ethylene Full article

Journal

Journal of Molecular Catalysis A: Chemical
ISSN: 1381-1169

Output data

Year: 2012, Volume: 358, Pages: 152-158 Pages count : 7 DOI: 10.1016/j.molcata.2012.03.010

Tags

EXAFS spectroscopy, Pd-Ga alloy, Pd/Ga 2O 3 catalyst, Selective hydrogenation of acetylene

Authors

Smirnova N.S. ¹ , Shlyapin D.A. ¹ , Mironenko O.O. ¹ , Anoshkina E.A. ¹ , Temerev V.L. ¹ , Shitova N.B. ¹ , Kochubey D.I. ² , Tsyrulʹnikov P.G. ¹

Affiliations

1	Institute of Hydrocarbons Processing of Siberian Branch of Russian Academy of Sciences, Neftezavodskaya Str. 54, Omsk 644040, Russia
2	Boreskov Institute of Catalysis, Prosp. Akad. Lavrentieva 5, Novosibirsk 630090, Russia

Model catalysts Pd/Ga2O3 of selective liquid-phase hydrogenation of acetylene to ethylene were prepared by impregnation of β-Ga2O3 with a palladium nitrate solution with following drying and reduction in a hydrogen flow at 200 °C. A part of the samples was then calcined in an argon flow at 200–500 °C. The as-prepared samples were tested in the reaction of selective liquid-phase hydrogenation of acetylene. EXAFS was used to study structure of the catalyst components. Based on the EXAFS data it was found that Pd–Ga alloys present in the subsurface region of Pd particles. The presence of these alloys increases activity and selectivity of catalysts. The alloys are decomposed by calcination in inert atmosphere following decrease in catalytic activity.

Smirnova N.S. , Shlyapin D.A. , Mironenko O.O. , Anoshkina E.A. , Temerev V.L. , Shitova N.B. , Kochubey D.I. , Tsyrulʹnikov P.G.
EXAFS Study of Pd/Ga2O3 Model Catalysts of Selective Liquid-Phase Hydrogenation of Acetylene to Ethylene
Journal of Molecular Catalysis A: Chemical. 2012. V.358. P.152-158. DOI: 10.1016/j.molcata.2012.03.010 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Nov 15, 2011
Accepted:	Mar 12, 2012
Published online:	Mar 21, 2012
Published print:	May 31, 2012

Web of science:	WOS:000304429800019
Scopus:	2-s2.0-84860302788
Elibrary:	17983772
Chemical Abstracts:	2012:630572
Chemical Abstracts (print):	156:638401
OpenAlex:	W2008902768

DB	Citing
Web of science	13
Scopus	12
Elibrary	12
OpenAlex	14