An Investigation into the Bulk and Surface Phase Transformations of Bimetallic Pd-In/Al2O3 Catalyst during Reductive and Oxidative Treatments In Situ | Sciact - CRIS-system of Boreskov Institute of Catalysis

An Investigation into the Bulk and Surface Phase Transformations of Bimetallic Pd-In/Al2O3 Catalyst during Reductive and Oxidative Treatments In Situ Full article

Journal

Catalysts
ISSN: 2073-4344

Output data

Year: 2021, Volume: 11, Number: 7, Article number : 859, Pages count : 11 DOI: 10.3390/catal11070859

Tags

intermetallic compounds; PdIn catalysts; in situ XAFS spectroscopy; DRIFTS of adsorbed CO

Authors

Smirnova Nadezhda S. ¹ , Khramov Evgeny V. ² , Baeva Galina N. ³ , Markov Pavel V. ³ , Bukhtiyarov Andrey V. ⁴ , Zubavichus Yan V. ⁴ , Stakheev Aleksander Y. ³

Affiliations

1	Kurnakov Institute of General and Inorganic Chemistry RAS
2	National Research Center «Kurchatov Institute»
3	N.D. Zelinsky Institute of Organic Chemistry RAS
4	Synchrotron Radiation Facility SKIF, G.K. Boreskov Institute of Catalysis SB RAS

Funding (1)

Russian Science Foundation

19-13-00285

A series of oxidative treatments of PdIn-supported intermetallic nanoparticles at different temperatures were performed. The bulk and surface structure of catalyst during phase transformation was investigated by bulk- and surface-sensitive techniques (in situ XAFS, DRIFTS of adsorbed CO). It was found that comparison of palladium and indium fractions in bulk and on the surface suggests the formation of a «core-shell» structure. According to obtained results, the core consists of In-depleted intermetallic compound or inhomogeneous bimetallic phase with the inner core of metallic Pd, when a mixture of indium oxide, metallic palladium and small part of PdIn is present on the surface.

Smirnova N.S. , Khramov E.V. , Baeva G.N. , Markov P.V. , Bukhtiyarov A.V. , Zubavichus Y.V. , Stakheev A.Y.
An Investigation into the Bulk and Surface Phase Transformations of Bimetallic Pd-In/Al2O3 Catalyst during Reductive and Oxidative Treatments In Situ

Catalysts. 2021. V.11. N7. 859 :1-11. DOI: 10.3390/catal11070859 WOS Scopus AN OpenAlex publication_identifier_short.sciact_skif_identifier_type

Full text from publisher

Submitted:	Jun 28, 2021
Accepted:	Jul 17, 2021
Published print:	Jul 18, 2021
Published online:	Jul 18, 2021

Web of science:	WOS:000678198100001
Scopus:	2-s2.0-85110094801
Chemical Abstracts:	2021:2296965
OpenAlex:	W3187009154
publication_identifier.sciact_skif_identifier_type:	487

DB	Citing
Web of science	6
Scopus	7
OpenAlex	8