Synthesis and Study of Pd-Rh Alloy Nanoparticles and Alumina-Supported Low-Content Pd-Rh Catalysts for CO Oxidation | Sciact - CRIS-system of Boreskov Institute of Catalysis

Synthesis and Study of Pd-Rh Alloy Nanoparticles and Alumina-Supported Low-Content Pd-Rh Catalysts for CO Oxidation Full article

Journal

Materials Research Bulletin
ISSN: 0025-5408

Output data

Year: 2018, Volume: 102, Pages: 196-202 Pages count : 7 DOI: 10.1016/j.materresbull.2018.02.038

Tags

Partly miscible metals; Palladium-rhodium alloy; CO oxidation; Catalyst preparation conditions; Double complex salts

Authors

Vedyagin A.A. ^1,2 , Plyusnin P.E. ^3,4 , Rybinskaya A.A. ⁴ , Shubin Y.V. ^3,4 , Mishakov I.V. ^1,2 , Korenev S.V. ^3,4

Affiliations

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

Funding (1)

Russian Science Foundation

16-13-10192

Palladium and rhodium are known to be partly miscible metals. In present work, the peculiarities of coordination compound [Pd(NH3)4]3[Rh(NO2)6]2 decomposition with formation of nanosized solid solutions under different atmospheres were studied by means of thermal gravimetry. Formation of alloy nanoparticles were confirmed by powder X-ray diffraction analysis, scanning and transmission electron microscopies. A bimetallic Pd-Rh/alumina catalyst was prepared by incipient wetness impregnation using coordination compound [Pd(NH3)4]3[Rh(NO2)6]2 as a precursor. Monometallic reference samples were obtained using [Pd(NH3)4](NO3)2 and Na3[Rh(NO2)6], correspondingly. Catalytic performance and stability of the catalysts were examined in a model reaction of CO oxidation in a prompt thermal aging regime. The environment of precursor decomposition was shown to affect noticeably both the initial activity and stability of the samples in the studied reaction. Reductive atmosphere in comparison with inert and oxidative ones facilitates the formation of the smallest active component species, which demonstrate highest initial activity but worst stability.

Vedyagin A.A. , Plyusnin P.E. , Rybinskaya A.A. , Shubin Y.V. , Mishakov I.V. , Korenev S.V.
Synthesis and Study of Pd-Rh Alloy Nanoparticles and Alumina-Supported Low-Content Pd-Rh Catalysts for CO Oxidation
Materials Research Bulletin. 2018. V.102. P.196-202. DOI: 10.1016/j.materresbull.2018.02.038 WOS Scopus РИНЦ AN OpenAlex

Submitted:	Aug 20, 2017
Accepted:	Feb 20, 2018
Published online:	Mar 21, 2018
Published print:	Jun 1, 2018

Web of science:	WOS:000430762200026
Scopus:	2-s2.0-85042481557
Elibrary:	35501859
Chemical Abstracts:	2018:361743
OpenAlex:	W2790922111

DB	Citing
Web of science	17
Scopus	17
Elibrary	15
OpenAlex	16