Issue 21, 2018
From the journal:

RSC Advances

Role of ceria in the improvement of NO removal of lanthanum-based perovskite-type catalysts

Xiaochen Lia  and  Hongwei Gao ORCID logo *a  

* Corresponding authors

a Key Laboratory of Plant Resources and Chemistry in Arid Regions, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China
E-mail: gaohongw369@ms.xjb.ac.cn
Fax: +86-991-3858319
Tel: +86-991-3858319

Abstract

Lanthanum-based perovskite-type oxides represented by LaBO3 (B = Co, Fe, Mn) have been thought to present strong limitations for practical application although they are active for catalytic removal of NO. Cerium (Ce) substitution has been extensively studied to modify the properties of perovskites. It is noted that a new phase of ceria (CeO2) can be separated from perovskites when the doping ratio exceeds the solution limit (x > S). This review outlines the relationship between the existence of CeO2 phase and catalytic activity. CeO2 dispersing on the lattice surface or small particles are beneficial for catalytic activity, but larger particles are adverse. Ce-doped LaBO3 perovskites exhibiting the best activity must contain additional CeO2 phases. In addition, CeO2-supported LaBO3 perovskite catalysts are discussed.

Graphical abstract: Role of ceria in the improvement of NO removal of lanthanum-based perovskite-type catalysts

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Article information

DOI
https://doi.org/10.1039/C8RA00456K
Article type
Review Article
Submitted
16 Jan 2018
Accepted
19 Mar 2018
First published
27 Mar 2018
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2018,8, 11778-11784

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Role of ceria in the improvement of NO removal of lanthanum-based perovskite-type catalysts

X. Li and H. Gao, RSC Adv., 2018, 8, 11778 DOI: 10.1039/C8RA00456K

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