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Redox properties and catalytic performance of ceria-zirconia nanorods
Chen, Aling; Zhou, Yan; Ta, Na; Li, Yong; Shen, Wenjie
刊名CATALYSIS SCIENCE & TECHNOLOGY
2015
DOI10.1039/c5cy00564g
5期:8页:4184-4192
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]CEO2-ZRO2 MIXED OXIDES ; SOLID-SOLUTIONS ; DIESEL SOOT ; HYDROTHERMAL SYNTHESIS ; POLYCRYSTALLINE CERIA ; SURFACE PLANES ; CO OXIDATION ; REDUCTION ; SHAPE ; NO
英文摘要The 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.
语种英语
WOS记录号WOS:000358237400035
引用统计
被引频次:22[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/146405
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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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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