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Catalytically Active Rh Sub-Nanoclusters on TiO2 for CO Oxidation at Cryogenic Temperatures
Guan, Hongling1,2; Lin, Jian1; Qiao, Botao1; Yang, Xiaofeng1; Li, Lin1; Miao, Shu1; Liu, Jingyue3; Wang, Aigin1; Wang, Xiaodong1; Zhang, Tao1
KeywordCarbon Monoxide Oxidation Catalysis Clusters Cryogenic Temperatures Rhodium
Source PublicationANGEWANDTE CHEMIE-INTERNATIONAL EDITION
2016-02-18
ISSN1433-7851
DOI10.1002/anie.201510643
Volume55Issue:8Pages:2820-2824
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordCARBON-MONOXIDE OXIDATION ; NANOPARTICLES ; CATALYST ; OXYGEN ; PLATINUM ; REACTIVITY ; HYDROXIDE ; MECHANISM ; PT/AL2O3 ; METALS
AbstractThe discovery that gold catalysts could be active for CO oxidation at cryogenic temperatures has ignited much excitement in nanocatalysis. Whether the alternative Pt group metal (PGM) catalysts can exhibit such high performance is an interesting research issue. So far, no PGM catalyst shows activity for CO oxidation at cryogenic temperatures. In this work, we report a sub-nano Rh/TiO2 catalyst that can completely convert CO at 223 K. This catalyst exhibits at least three orders of magnitude higher turnover frequency (TOF) than the best Rh-based catalysts and comparable to the well-known Au/TiO2 for CO oxidation. The specific size range of 0.4-0.8 nm Rh clusters is critical to the facile activation of O-2 over the Rh-TiO2 interface in a form of Rh-O-O-Ti (superoxide). This superoxide is ready to react with the CO adsorbed on TiO2 sites at cryogenic temperatures.
Language英语
WOS IDWOS:000370655700034
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:52[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/171293
Collection中国科学院大连化学物理研究所
Corresponding AuthorWang, Xiaodong; Zhang, Tao
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
3.Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA
Recommended Citation
GB/T 7714
Guan, Hongling,Lin, Jian,Qiao, Botao,et al. Catalytically Active Rh Sub-Nanoclusters on TiO2 for CO Oxidation at Cryogenic Temperatures[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2016,55(8):2820-2824.
APA Guan, Hongling.,Lin, Jian.,Qiao, Botao.,Yang, Xiaofeng.,Li, Lin.,...&Zhang, Tao.(2016).Catalytically Active Rh Sub-Nanoclusters on TiO2 for CO Oxidation at Cryogenic Temperatures.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,55(8),2820-2824.
MLA Guan, Hongling,et al."Catalytically Active Rh Sub-Nanoclusters on TiO2 for CO Oxidation at Cryogenic Temperatures".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 55.8(2016):2820-2824.
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