CAS OpenIR
Highly active and humidity resistive perovskite LaFeO3 based catalysts for efficient ozone decomposition
Gong, Shuyan1,2; Xie, Zheng1; Li, Weiman1,2; Wu, Xiaofeng1; Han, Ning1,3; Chen, Yunfa1,3
2019-02-01
Source PublicationAPPLIED CATALYSIS B-ENVIRONMENTAL
ISSN0926-3373
Volume241Pages:578-587
AbstractNowadays, it is still challenging to prepare highly active O-3 decomposition catalyst, especially with high water resistance used in harsh environments such as high relative humidity (RH). Herein, perovskite LaFeO3 based catalysts are synthesized by a facile sol-gel method, which show far higher O-3 decomposition activity of 70-80% than the commonly used Fe2O3 counterpart of 0% at RH 90% and room temperature. Furthermore, 5% mol Ni is effectively doped into LaFeO3 substituting part of Fe as verified by X-ray diffraction and X-ray photoelectron spectroscopy, which enhances the RH resistance with a stable > 90% conversion efficiency on 1000 ppm O-3 at RH 90% and room temperature in a test period of 4.0 h. The temperature programmed desorption results show that the H2O desorption temperature decreases from 180 to 480 degrees C of Fe2O3 to < 100 degrees C for LaFeO3 and LaFe0.95Ni0.05O3, which contributes to the easy desorption of H2O and thus high RH resistance of these perovskite materials. Importantly, the in-situ Raman spectra show deformation of Fe2O3 in O-3 decomposition reaction at high RH, leading to accumulation of intermediate O-2(2-) and thus depression of catalytic activity. However, the perovskite materials show neither deformation nor O-2(2-) accumulation, corresponding well with the high activity at high RH. All these results show the potential of these highly active and RH resistive perovskite catalysts for decomposition of ozone under harsh environments.
KeywordOzone decomposition Perovskite LaFeO3 Humidity resistance In-situ Raman spectroscopy Stability
DOI10.1016/j.apcatb.2018.09.041
Language英语
WOS KeywordMANGANESE OXIDE CATALYST ; SITU RAMAN-SPECTROSCOPY ; ROOM-TEMPERATURE ; OXYGEN CARRIERS ; TOTAL OXIDATION ; BENZYL ALCOHOL ; AIR-POLLUTION ; GASEOUS OZONE ; ALPHA-FE2O3 ; CU
Funding ProjectNational Key R&D Program of China[2016YFC0207100] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB05050400] ; National Natural Science Foundation of China[51672273] ; State Key Laboratory of Multiphase Complex Systems[MPCS-2015-A-04]
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
Funding OrganizationNational Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; State Key Laboratory of Multiphase Complex Systems
WOS IDWOS:000449444000061
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/26620
Collection中国科学院过程工程研究所
Corresponding AuthorHan, Ning; Chen, Yunfa
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China
Recommended Citation
GB/T 7714
Gong, Shuyan,Xie, Zheng,Li, Weiman,et al. Highly active and humidity resistive perovskite LaFeO3 based catalysts for efficient ozone decomposition[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2019,241:578-587.
APA Gong, Shuyan,Xie, Zheng,Li, Weiman,Wu, Xiaofeng,Han, Ning,&Chen, Yunfa.(2019).Highly active and humidity resistive perovskite LaFeO3 based catalysts for efficient ozone decomposition.APPLIED CATALYSIS B-ENVIRONMENTAL,241,578-587.
MLA Gong, Shuyan,et al."Highly active and humidity resistive perovskite LaFeO3 based catalysts for efficient ozone decomposition".APPLIED CATALYSIS B-ENVIRONMENTAL 241(2019):578-587.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Gong, Shuyan]'s Articles
[Xie, Zheng]'s Articles
[Li, Weiman]'s Articles
Baidu academic
Similar articles in Baidu academic
[Gong, Shuyan]'s Articles
[Xie, Zheng]'s Articles
[Li, Weiman]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Gong, Shuyan]'s Articles
[Xie, Zheng]'s Articles
[Li, Weiman]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.