A Comparative Study of CO Preferential Oxidation over Pt and Pt0.5Co0.5 Nanoparticles: Kinetic Study and Ouantum-Chemical Calculations | Sciact - CRIS-system of Boreskov Institute of Catalysis

A Comparative Study of CO Preferential Oxidation over Pt and Pt0.5Co0.5 Nanoparticles: Kinetic Study and Ouantum-Chemical Calculations Full article

Journal

Materials Letters
ISSN: 0167-577X , E-ISSN: 1873-4979

Output data

Year: 2020, Volume: 260, Article number : 126915, Pages count : 3 DOI: 10.1016/j.matlet.2019.126915

Tags

Bimetallic catalysts; Density functional theory; Interfaces; Nanoparticles; Preferential CO oxidation; Pt-Co catalysts

Authors

Potemkin D.I. ^1,2 , Filatov E.Y. ^1,3 , Zadesenets A.V. ^1,3 , Gorlova A.M. ^1,2 , Nikitina N.A. ⁴ , Pichugina D.A. ⁴

Affiliations

1	Novosibirsk State University, Pirogova St., 2, Novosibirsk, 630090, Russia
2	Boreskov Institute of Catalysis, Pr. Lavrentieva, 5, Novosibirsk, 630090, Russia
3	Nikolaev Institute of Inorganic Chemistry, Pr. Lavrentieva, 3, Novosibirsk, 630090, Russia
4	Department of Chemistry, Moscow State University, Leninskie Gory St., 1, Moscow, 119991, Russia

Funding (1)

Russian Science Foundation

19-73-00157 (АААА-А19-119090590044-0)

CO preferential (PROX) and total (TOX) oxidation were studied over Pt and Pt0.5Co0.5 nanopowders. Pt0.5Co0.5 exhibited much higher CO PROX performance than Pt, being highly active and selective at 0–80 °C. Low-temperature activity in CO oxidation was shown to be the key feature of bimetallic Pt-Co catalysts in comparison with monometallic Pt. Density functional theory calculations of the oxidation of CO on Pt13 and Pt12Co clusters revealed that a better catalytic activity of bimetallic cluster is due to an electronic effect: the calculated atomic charges on platinum atoms change when cobalt is introduced into its composition. © 2019 Elsevier B.V.

Potemkin D.I. , Filatov E.Y. , Zadesenets A.V. , Gorlova A.M. , Nikitina N.A. , Pichugina D.A.
A Comparative Study of CO Preferential Oxidation over Pt and Pt0.5Co0.5 Nanoparticles: Kinetic Study and Ouantum-Chemical Calculations
Materials Letters. 2020. V.260. 126915 :1-3. DOI: 10.1016/j.matlet.2019.126915 WOS Scopus РИНЦ AN OpenAlex

Submitted:	Oct 1, 2019
Accepted:	Oct 29, 2019
Published online:	Oct 31, 2019
Published print:	Feb 1, 2020

Web of science:	WOS:000503377400025
Scopus:	2-s2.0-85075443904
Elibrary:	43218918
Chemical Abstracts:	2019:2153962
OpenAlex:	W2988838142

DB	Citing
Scopus	13
Web of science	14
Elibrary	15
OpenAlex	15