DICP OpenIR
Redox properties and catalytic performance of ceria-zirconia nanorods
Chen, Aling; Zhou, Yan; Ta, Na; Li, Yong; Shen, Wenjie
Source PublicationCATALYSIS SCIENCE & TECHNOLOGY
2015
DOI10.1039/c5cy00564g
Volume5Issue:8Pages:4184-4192
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Physical
WOS Research AreaChemistry
WOS KeywordCEO2-ZRO2 MIXED OXIDES ; SOLID-SOLUTIONS ; DIESEL SOOT ; HYDROTHERMAL SYNTHESIS ; POLYCRYSTALLINE CERIA ; SURFACE PLANES ; CO OXIDATION ; REDUCTION ; SHAPE ; NO
AbstractThe redox properties and catalytic performance of Ce1-xZrxO2 (0 <= x <= 0.2) nanorods, mainly exposing {110} and {100} planes, were comparatively examined with spherical Ce1-xZrxO2 nanoparticles that predominantly exposed {111} planes. The CeO2 nanorods had a superior redox property and much higher activity towards CO oxidation than the CeO2 nanoparticles, primarily because of the preferential exposure of the reactive {110} planes. However, this shape effect was weakened considerably in Ce1-xZrxO2 (x = 0.05-0.20) nanomaterials. ZrO2-doping promoted the reducibility of the nanoparticles more signifciantly than that of the nanorods, involving different rate-determining steps in the reduction process. The activity for CO oxidation enhanced with increasing ZrO2 content on the nanoparticles but decreased over the nanorods. These results demonstrate that the shape effect of Ce1-xZrxO2 nanomaterials is associated with the amount of zirconia that is incorporated into the ceria lattice.
Language英语
WOS IDWOS:000358237400035
Citation statistics
Cited Times:30[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/146405
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Chen, Aling,Zhou, Yan,Ta, Na,et al. Redox properties and catalytic performance of ceria-zirconia nanorods[J]. CATALYSIS SCIENCE & TECHNOLOGY,2015,5(8):4184-4192.
APA Chen, Aling,Zhou, Yan,Ta, Na,Li, Yong,&Shen, Wenjie.(2015).Redox properties and catalytic performance of ceria-zirconia nanorods.CATALYSIS SCIENCE & TECHNOLOGY,5(8),4184-4192.
MLA Chen, Aling,et al."Redox properties and catalytic performance of ceria-zirconia nanorods".CATALYSIS SCIENCE & TECHNOLOGY 5.8(2015):4184-4192.
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