Cerium(III) Nitrate Derived CeO2 Support Stabilising PtOx Active Species for Room Temperature CO Oxidation | Sciact - CRIS-system of Boreskov Institute of Catalysis

Cerium(III) Nitrate Derived CeO2 Support Stabilising PtOx Active Species for Room Temperature CO Oxidation Full article

Journal

ChemCatChem
ISSN: 1867-3880 , E-ISSN: 1867-3899

Output data

Year: 2020, Volume: 12, Number: 5, Pages: 1413-1428 Pages count : 16 DOI: 10.1002/cctc.201902146

Tags

catalysis; ceria; low-temperature CO oxidation; operando XAS; platinum(IV) nitrato complexes

Authors

Vasilchenko Danila ^1,2 , Asanova Tatyana ^1,2 , Kolesov Boris ^1,2 , Tsygankova Alphiya ^1,2 , Stadnichenko Andrey ^2,3 , Slavinskaya Elena ^2,3 , Gerasimov Evgeny ^2,3 , Lomachenko Kirill ⁴ , Boronin Andrey ^2,3 , Korenev Sergey ^1,2

Affiliations

1	Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, Novosibirsk 630090 (Russian Federation)
2	Novosibirsk State University, Novosibirsk 630090 (Russian Federation)
3	Boreskov Institute of Catalysis, Novosibirsk 630090 (Russian Federation)
4	European Synchrotron Radiation Facility, Grenoble 38 000 (France)

Funding (1)

Russian Science Foundation

18-73-00054

A new approach for preparing a PtOx/CeO2 catalyst for low-temperature CO oxidation has been developed. The approach includes; i) preparation of a CeO2 support through the controllable thermal decomposition of Ce(NO3)(3) . 6H2O, and then ii) deposition of polynuclear platinum nitrato complexes ([H3O ⊂ 18-crown-6](2)[Pt-2(mu(2)-OH)(2)(NO3)(8)][Pt-4(mu(3)-OH)(2)(mu(2)-OH)(4)(NO3)(10)]) on the CeO2 support. The NO3--rich ceria support produced at the onset temperature of Ce(NO3)(3) -> CeO2 transformation (220 оC) yields the "PtOx/CeO2-220" catalyst that shows intriguingly high activity in CO oxidation, at room temperature and below. To understand the nature of the low-temperature catalytic activity, prepared catalysts have been studied using X-ray photoelectron spectroscopy (XPS), Raman and operando X-ray absorption fine structure spectroscopy (XAFS) and transmission electron microscopy (TEM).

Vasilchenko D. , Asanova T. , Kolesov B. , Tsygankova A. , Stadnichenko A. , Slavinskaya E. , Gerasimov E. , Lomachenko K. , Boronin A. , Korenev S.
Cerium(III) Nitrate Derived CeO2 Support Stabilising PtOx Active Species for Room Temperature CO Oxidation
ChemCatChem. 2020. V.12. N5. P.1413-1428. DOI: 10.1002/cctc.201902146 WOS Scopus РИНЦ AN OpenAlex

Submitted:	Nov 15, 2019
Accepted:	Dec 17, 2019
Published online:	Dec 18, 2019
Published print:	Mar 6, 2020

Web of science:	WOS:000508484400001
Scopus:	2-s2.0-85078768315
Elibrary:	43233106
Chemical Abstracts:	2020:157375
OpenAlex:	W2996310094

DB	Citing
Web of science	20
Scopus	20
Elibrary	18
OpenAlex	19