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Bifunctional CO oxidation over Mn-mullite anchored Pt sub-nanoclusters via atomic layer deposition
Liu, X; Tang, YT; Shen, MQ; Li, W; Chu, SQ; Shan, B; Chen, R; Chu SQ(储胜启)
2018
Source PublicationCHEMICAL SCIENCE
ISSN2041-6520
EISSN2041-6539
Volume9Issue:9Pages:2469-2473
SubtypeArticle
AbstractCO oxidation is a widely used model system for understanding fundamental aspects of heterogeneous catalysis. While platinum (Pt) continues to be a reference material for CO oxidation catalysis, poisoning of Pt catalysts presents a critical issue that blocks reaction sites and impedes subsequent reaction steps. Fabrication of CO poison-free Pt catalysts remains a great challenge due to its CO-philic nature. Herein, we report a Pt based catalyst to effectively tackle CO poisoning by tightly anchoring Pt sub-nanoclusters onto Mn-mullite oxide (SmMn2O5) via atomic layer deposition. Superior CO oxidation activity has been observed with a significantly lowered light-off temperature and apparent activation energy. In situ diffuse reflectance infrared Fourier transform spectroscopy analysis, oxygen isotope experiments and density functional theory calculations confirm that the low-temperature activity originates from active oxygen atom sources at the bifunctional interface structure.
DOI10.1039/c7sc05486f
WOS KeywordWATER-GAS SHIFT ; CARBON-MONOXIDE ; PLATINUM NANOPARTICLES ; ROOM-TEMPERATURE ; CATALYSTS ; OXYGEN ; CLUSTERS ; SUPPORT ; SINGLE ; MECHANISM
Indexed BySCI ; EI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000431087700008
EI Accession Number20181004858509
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/285872
Collection多学科研究中心
粒子天体物理中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Liu, X,Tang, YT,Shen, MQ,et al. Bifunctional CO oxidation over Mn-mullite anchored Pt sub-nanoclusters via atomic layer deposition[J]. CHEMICAL SCIENCE,2018,9(9):2469-2473.
APA Liu, X.,Tang, YT.,Shen, MQ.,Li, W.,Chu, SQ.,...&储胜启.(2018).Bifunctional CO oxidation over Mn-mullite anchored Pt sub-nanoclusters via atomic layer deposition.CHEMICAL SCIENCE,9(9),2469-2473.
MLA Liu, X,et al."Bifunctional CO oxidation over Mn-mullite anchored Pt sub-nanoclusters via atomic layer deposition".CHEMICAL SCIENCE 9.9(2018):2469-2473.
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