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Highly active Au-1/Co3O4 single-atom catalyst for CO oxidation at room temperature
Qiao, Botao1,2; Lin, Jian2; Wang, Aiqin2; Chen, Yang2; Zhang, Tao2; Liu, Jingyue1,2
KeywordSingle-atom Catalysis Noble Metal Gold Carbon Monoxide Cobalt Oxide Low Temperature
Source PublicationCHINESE JOURNAL OF CATALYSIS
2015-09-01
DOI10.1016/S1872-2067(15)60889-0
Volume36Issue:9Pages:1505-1511
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordTRANSITION-METAL OXIDES ; CARBON-MONOXIDE ; FERRIC HYDROXIDE ; PREFERENTIAL OXIDATION ; SELECTIVE OXIDATION ; GOLD CATALYSTS ; PERFORMANCE ; CO3O4 ; GAS ; MECHANISM
AbstractCO oxidation is of great importance in both fundamental studies and practical applications. Oxide-supported noble metal catalysts are well known to be excellent CO oxidation catalysts. However, the high cost and limited supply of these noble metals pose significant challenges for sustainable applications. Maximizing the atom efficiency of supported noble metal catalysts is therefore highly desirable. In this work, a Co3O4 supported Au single-atom catalyst with very low Au (0.05 wt%) loading has been developed. This catalyst showed extremely high activity for CO oxidation and exhibited total conversion of CO at room temperature. The high activity originates from the isolated Au atoms distributed on the Co3O4 nanocrystallites, although the exact catalytic mechanism is still under investigation. The catalyst deactivation observed during the CO oxidation was attributed to the accumulation of CO2 rather than sintering of the single Au atoms. This extremely low loading of Au coupled to high activity is critical to reducing the cost of noble metal catalysts and making them more practical and attractive. (C) 2015, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000361084300010
Citation statistics
Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/146519
Collection中国科学院大连化学物理研究所
Affiliation1.Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Qiao, Botao,Lin, Jian,Wang, Aiqin,et al. Highly active Au-1/Co3O4 single-atom catalyst for CO oxidation at room temperature[J]. CHINESE JOURNAL OF CATALYSIS,2015,36(9):1505-1511.
APA Qiao, Botao,Lin, Jian,Wang, Aiqin,Chen, Yang,Zhang, Tao,&Liu, Jingyue.(2015).Highly active Au-1/Co3O4 single-atom catalyst for CO oxidation at room temperature.CHINESE JOURNAL OF CATALYSIS,36(9),1505-1511.
MLA Qiao, Botao,et al."Highly active Au-1/Co3O4 single-atom catalyst for CO oxidation at room temperature".CHINESE JOURNAL OF CATALYSIS 36.9(2015):1505-1511.
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