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题名: Ferrous Centers Confined on Core-Shell Nanostructures for Low-Temperature CO Oxidation
作者: Guo, Xiaoguang1;  Fu, Qiang1;  Ning, Yanxiao1;  Wei, Mingming1;  Li, Mingrun1;  Zhang, Shuo2;  Jiang, Zheng2;  Bao, Xinhe1
刊名: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
发表日期: 2012-08-01
DOI: 10.1021/ja3038883
卷: 134, 期:30, 页:12350-12353
收录类别: SCI
文章类型: Article
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: A noble metal (NM) can stabilize monolayer-dispersed surface oxide phases with metastable nature. The formed "oxide-on-metal" inverse catalyst presents better catalytic performance than the NM because of the introduction of coordinatively unsaturated cations at the oxide-metal boundaries. Here we demonstrate that an ultrathin NM layer grown on a non-NM core can impose the same constraint on the supported oxide as the bulk NM. Cu@Pt core-shell nanoparticles (NPs) decorated with FeO patches use much less Pt but exhibit performance similar to that of Pt NPs covered with surface FeO patches in the catalytic oxidation of CO. The "oxide-on-core@shell" inverse catalyst system may open a new avenue for the design of advanced nanocatalysts with decreased usage of noble metals.
关键词[WOS]: CATALYSTS ;  NANOPARTICLES ;  REDUCTION ;  SURFACE ;  BOUNDARY ;  ALLOY ;  AU
语种: 英语
WOS记录号: WOS:000306942600008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142845
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China

Recommended Citation:
Guo, Xiaoguang,Fu, Qiang,Ning, Yanxiao,et al. Ferrous Centers Confined on Core-Shell Nanostructures for Low-Temperature CO Oxidation[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2012,134(30):12350-12353.
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