The Role of Chemisorbed Water in Formation and Stabilization of Active Sites on Pd/Alumina Oxidation Catalysts | Sciact - CRIS-system of Boreskov Institute of Catalysis

The Role of Chemisorbed Water in Formation and Stabilization of Active Sites on Pd/Alumina Oxidation Catalysts Full article

Conference

9th International Conference on Environmental Catalysis (ICEC2016)
10-13 Jul 2016 , Newcastle

Journal

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

Output data

Year: 2018, Volume: 307, Pages: 102-110 Pages count : 9 DOI: 10.1016/j.cattod.2017.01.033

Tags

Alumina, Chemisorbed water, CO oxidation, Palladium catalysts, Stability

Authors

Vedyagin Aleksey A. ^1,2 , Volodin Alexander M. ¹ , Kenzhin Roman M. ¹ , Stoyanovskii Vladimir O. ¹ , Rogov Vladimir A. ^1,3 , Kriventsov Vladimir V. ¹ , Mishakov Ilya V. ^1,2

Affiliations

1	Boreskov Institute of Catalysis, Novosibirsk, 630090, Russian Federation
2	National Research Tomsk Polytechnic University, Tomsk 634050, Russian Federation
3	Novosibirsk State University, Novosibirsk 630090, Russian Federation

Funding (1)

Federal Agency for Scientific Organizations

0303-2016-0014

A series of Pd/Al2O3catalysts with different palladium loading was prepared by incipient wetness impreg-nation method. As it was shown by various physicochemical methods, palladium at concentrations notexceeding 0.5 wt.% favors to stabilize in an atomic dispersed ionic state. Appearance of PdO phase hasbeen firmly detected by TPR, DR UV–vis and EXAFS starting from Pd concentration of 1 wt.%. It was foundthat low-content Pd/Al2O3catalysts are characterized by high activity in CO oxidation due to atomicallydispersed palladium species tailored to the donor sites of the support. The presence of chemisorbed waterallows one to stabilize Pd in highly disperse state thus preventing the catalyst deactivation.

Vedyagin A.A. , Volodin A.M. , Kenzhin R.M. , Stoyanovskii V.O. , Rogov V.A. , Kriventsov V.V. , Mishakov I.V.
The Role of Chemisorbed Water in Formation and Stabilization of Active Sites on Pd/Alumina Oxidation Catalysts
Catalysis Today. 2018. V.307. P.102-110. DOI: 10.1016/j.cattod.2017.01.033 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Sep 23, 2016
Accepted:	Jan 20, 2017
Published online:	Jan 23, 2017
Published print:	Jun 1, 2018

Web of science:	WOS:000428231400014
Scopus:	2-s2.0-85009982280
Elibrary:	35477748
Chemical Abstracts:	2017:161292
Chemical Abstracts (print):	168:311690
OpenAlex:	W2580895266

DB	Citing
Web of science	35
Scopus	36
Elibrary	33
OpenAlex	36