High-Temperature Abatement of N2O over FeOx/CeO2-Al2O3 Catalysts: The Effects of Oxygen Mobility | Sciact - CRIS-system of Boreskov Institute of Catalysis

High-Temperature Abatement of N2O over FeOx/CeO2-Al2O3 Catalysts: The Effects of Oxygen Mobility Full article

Journal

Catalysts
ISSN: 2073-4344

Output data

Year: 2022, Volume: 12, Number: 9, Article number : 938, Pages count : 15 DOI: 10.3390/catal12090938

Tags

N2O decomposition; Fe-Ce-Al mixed oxide; oxygen mobility

Authors

Pinaeva Larisa ¹ , Prosvirin Igor ¹ , Chesalov Yuriy ¹ , Atuchin Victor ^2,3,4,5

Affiliations

1	Boreskov Institute of Catalysis SB-RAS, 5, Lavrentiev ave, Novosibirsk 630090, Russia
2	Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB-RAS, Novosibirsk 630090, Russia
3	Research and Development Department, Kemerovo State University, Kemerovo 650000, Russia
4	Department of Industrial Machinery Design, Novosibirsk State Technical University, Novosibirsk 630073, Russia
5	R&D Center “Advanced Electronic Technologies”, Tomsk State University, Tomsk 634034, Russia

Funding (2)

1	Ministry of Science and Higher Education of the Russian Federation	0239-2021-0014
2	Ministry of Science and Higher Education of the Russian Federation	075-15-2022-1132

CeO2-Al2O3 oxides prepared by co-precipitation (Ce+Al) or CeOx precipitation onto Al2O3 (Ce/Al) to obtain dispersed CeO2 and samples with further supported FeOx (2.5–9.9 weight% in terms of Fe) were characterized by XRD, XPS, DDPA and Raman. Fe/Ce/Al samples with lower surface concentrations of Fe3+ were substantially more active in N2O decomposition at 700–900 °C. It was related to higher oxygen mobility, as estimated from 16O/18O exchange experiments and provided by preferential exposing of (Fe-)Ce oxides. Stabilization of some Ce as isolated Ce3+ in Fe-Ce-Al mixed oxides dominating in the bulk and surface layers of Fe/(Ce + Al) samples retards the steps responsible for fast additional oxygen transfer to the sites of O2 desorption.

Pinaeva L. , Prosvirin I. , Chesalov Y. , Atuchin V.
High-Temperature Abatement of N2O over FeOx/CeO2-Al2O3 Catalysts: The Effects of Oxygen Mobility
Catalysts. 2022. V.12. N9. 938 :1-15. DOI: 10.3390/catal12090938 WOS Scopus РИНЦ AN OpenAlex

Submitted:	Aug 4, 2022
Accepted:	Aug 22, 2022
Published print:	Aug 24, 2022
Published online:	Aug 24, 2022

Web of science:	WOS:000858168800001
Scopus:	2-s2.0-85138669830
Elibrary:	49578380
Chemical Abstracts:	2022:2500652
OpenAlex:	W4293008843

DB	Citing
Scopus	12
Elibrary	11
Web of science	12
OpenAlex	13