Peculiarity of Rh Bulk Diffusion in La-Doped Alumina and Its Impact on CO Oxidation over Rh/Al2O3 | Sciact - CRIS-system of Boreskov Institute of Catalysis

Peculiarity of Rh Bulk Diffusion in La-Doped Alumina and Its Impact on CO Oxidation over Rh/Al2O3 Full article

Journal

Catalysis Communications
ISSN: 1566-7367 , E-ISSN: 1873-3905

Output data

Year: 2017, Volume: 97, Pages: 18-22 Pages count : 5 DOI: 10.1016/j.catcom.2017.04.013

Tags

CO oxidation, La-promoted alumina, Photoluminescence, Prompt thermal aging, Rhodium diffusion, Stability

Authors

Stoyanovskii Vladimir O. ¹ , Vedyagin Aleksey A. ^1,2 , Volodin Alexander M. ¹ , Kenzhin Roman M. ¹ , Shubin Yury V. ^3,4 , Plyusnin Pavel E. ^3,4 , Mishakov Ilya V. ^1,2,4

Affiliations

1	Boreskov Institute of Catalysis SB RAS, Novosibirsk 630090, Russia
2	National Research Tomsk Polytechnic University, Tomsk 634050, Russia
3	Nikolaev Institute of Inorganic Chemistry SB RAS, Novosibirsk 630090, Russia
4	Novosibirsk State University, Novosibirsk 630090, Russia

Funding (2)

1	Federal Agency for Scientific Organizations	0303-2016-0014
2	Russian Foundation for Basic Research	16-08-01283

The catalytic behavior and stability of rhodium supported on pure and La-doped alumina were studied towards the CO oxidation reaction. Diffusion of Rh3+ ions into the bulk of support was shown to cause rapid deactivation in both cases. Alumina doping with La leads to modification of the alumina donor sites, concentrating of Rh near such sites, and acceleration of Rh3+ diffusion process. Diffused Rh ions were shown by means of photoluminescence to localize in the nearest coordination environment of the La ions in La-enriched alumina starting from a calcination temperature of 800 °C.

Stoyanovskii V.O. , Vedyagin A.A. , Volodin A.M. , Kenzhin R.M. , Shubin Y.V. , Plyusnin P.E. , Mishakov I.V.
Peculiarity of Rh Bulk Diffusion in La-Doped Alumina and Its Impact on CO Oxidation over Rh/Al2O3
Catalysis Communications. 2017. V.97. P.18-22. DOI: 10.1016/j.catcom.2017.04.013 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Jan 20, 2017
Accepted:	Apr 6, 2017
Published online:	Apr 7, 2017
Published print:	Jul 5, 2017

Web of science:	WOS:000401378200005
Scopus:	2-s2.0-85017310039
Elibrary:	29523073
Chemical Abstracts:	2017:615153
Chemical Abstracts (print):	166:482824
OpenAlex:	W2604501048

DB	Citing
Web of science	17
Scopus	19
Elibrary	18
OpenAlex	19