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Enhanced performance of Rh-1/TiO2 catalyst without methanation in water-gas shift reaction
Guan, Hongling1,2; Lin, Jian1; Qiao, Botao1; Miao, Shu1; Wang, Ai-Qin1; Wang, Xiaodong1; Zhang, Tao1
KeywordRhodium Single Atoms Water-gas Shift Hydrogen Ch4
Source PublicationAICHE JOURNAL
2017-06-01
DOI10.1002/aic.15585
Volume63Issue:6Pages:2081-2088
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
WOS SubjectEngineering, Chemical
WOS Research AreaEngineering
WOS KeywordSINGLE-ATOM CATALYSTS ; OXIDE SUPPORTS ; CO OXIDATION ; HYDROGEN ; CERIA ; RH ; GOLD ; SITES ; TIO2 ; IONS
AbstractWater-gas shift (WGS) reaction is an important process for industrial hydrogen production. The side reaction of methanation often causes unavoidable loss of H-2 along with this reaction. Here, we report a Rh-1/TiO2 single-atom catalyst (SAC) with appreciable loading of 0.37 wt %, which exhibited an overall CO conversion of approximate to 95% but without any methanation at 300 degrees C, even under CO2- and H-2-rich WGS stream. The specific activity of this SAC was around four times higher than that of cluster catalyst, which meanwhile suffered from unfavorable methanation. It was found that Rh single atoms promoted the formation of more oxygen vacancies on the TiO2 support to activate H2O to generate H-2 and prohibited the dissociation of H-2 compared with Rh clusters, leading to the enhanced activity and selectivity for WGS. (c) 2016 American Institute of Chemical Engineers AIChE J, 63: 2081-2088, 2017
Language英语
WOS IDWOS:000400658400024
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/151960
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Guan, Hongling,Lin, Jian,Qiao, Botao,et al. Enhanced performance of Rh-1/TiO2 catalyst without methanation in water-gas shift reaction[J]. AICHE JOURNAL,2017,63(6):2081-2088.
APA Guan, Hongling.,Lin, Jian.,Qiao, Botao.,Miao, Shu.,Wang, Ai-Qin.,...&Zhang, Tao.(2017).Enhanced performance of Rh-1/TiO2 catalyst without methanation in water-gas shift reaction.AICHE JOURNAL,63(6),2081-2088.
MLA Guan, Hongling,et al."Enhanced performance of Rh-1/TiO2 catalyst without methanation in water-gas shift reaction".AICHE JOURNAL 63.6(2017):2081-2088.
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