CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
A comparative study of the deactivation mechanisms of the Au/CeO2 catalyst for water-gas shift under steady-state and shutdown/start-up conditions in realistic reformate
Liu, Xiaoyu; Guo, Pingjun; Wang, Bin; Jiang, Zheng(姜政); Pei, Yan; Fan, Kangnian; Qiao, Minghua
2013
Source PublicationJOURNAL OF CATALYSIS
ISSN0021-9517
Volume300Pages:CONCATENATE(Sheet1!I4,-Sheet1!J4)
AbstractThe deactivation mechanisms of the Au/CeO2 catalyst in steady-state and shutdown/start-up WGS reactions were investigated in realistic reformate at 250 degrees C. Catalyst deactivation due to sintering was excluded. After steady-state operation, the original activity was not recovered by removing the deposited carbonate species. The influences of the component gases of realistic reformate on the activity suggest that loss of the Au-CeO2 interaction caused by the reducing H-2 and CO is the main reason for catalyst deactivation. Under the shutdown/start-up condition, the catalyst suffered more drastic deactivation, although it underwent a lesser degree of reduction. A good correlation between the extent of deactivation and the amount of the carbonate species indicates that catalyst deactivation is mainly caused by enhanced formation of the carbonate species, especially through a combined effect of CO2 and H2O, during the low-temperature shutdown and start-up steps. The implications of these findings for improved applications of the Au/CeO2 catalyst in WGS are indicated. (C) 2013 Elsevier Inc. All rights reserved.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000317558000017
Citation statistics
Cited Times:29[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13648
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Liu, Xiaoyu,Guo, Pingjun,Wang, Bin,et al. A comparative study of the deactivation mechanisms of the Au/CeO2 catalyst for water-gas shift under steady-state and shutdown/start-up conditions in realistic reformate[J]. JOURNAL OF CATALYSIS,2013,300:CONCATENATE(Sheet1!I4,-Sheet1!J4).
APA Liu, Xiaoyu.,Guo, Pingjun.,Wang, Bin.,Jiang, Zheng.,Pei, Yan.,...&Qiao, Minghua.(2013).A comparative study of the deactivation mechanisms of the Au/CeO2 catalyst for water-gas shift under steady-state and shutdown/start-up conditions in realistic reformate.JOURNAL OF CATALYSIS,300,CONCATENATE(Sheet1!I4,-Sheet1!J4).
MLA Liu, Xiaoyu,et al."A comparative study of the deactivation mechanisms of the Au/CeO2 catalyst for water-gas shift under steady-state and shutdown/start-up conditions in realistic reformate".JOURNAL OF CATALYSIS 300(2013):CONCATENATE(Sheet1!I4,-Sheet1!J4).
Files in This Item: Download All
File Name/Size DocType Version Access License
A comparative study (1579KB) 开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Liu, Xiaoyu]'s Articles
[Guo, Pingjun]'s Articles
[Wang, Bin]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liu, Xiaoyu]'s Articles
[Guo, Pingjun]'s Articles
[Wang, Bin]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liu, Xiaoyu]'s Articles
[Guo, Pingjun]'s Articles
[Wang, Bin]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: A comparative study of the deactivation mechanisms of the Au-CeO2 catalyst for water-gas shift under steady-state and shutdown.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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