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学科主题: 物理化学
题名: Crystal-Plane-Controlled Selectivity of Cu2O Catalysts in Propylene Oxidation with Molecular Oxygen
作者: Hua, Qing1;  Cao, Tian1;  Gu, Xiang-Kui2;  Lu, Jiqing3;  Jiang, Zhiquan1;  Pan, Xiaorong3;  Luo, Liangfeng1;  Li, Wei-Xue2;  Huang, Weixin1
通讯作者: WeixinHuang
关键词: active sites ;  nanocatalysis ;  oxide catalysts ;  reaction mechanisms ;  surface chemistry
刊名: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
发表日期: 2014-05-05
DOI: 10.1002/anie.201402374
卷: 53, 期:19, 页:4856-4861
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: The selective oxidation of propylene with O-2 to propylene oxide and acrolein is of great interest and importance. We report the crystal-plane-controlled selectivity of uniform capping-ligand-free Cu2O octahedra, cubes, and rhombic dodecahedra in catalyzing propylene oxidation with O-2: Cu2O octahedra exposing {111} crystal planes are most selective for acrolein; Cu2O cubes exposing {100} crystal planes are most selective for CO2; Cu2O rhombic dodecahedra exposing {110} crystal planes are most selective for propylene oxide. One-coordinated Cu on Cu2O(111), three-coordinated O on Cu2O(110), and two-coordinated O on Cu2O(100) were identified as the catalytically active sites for the production of acrolein, propylene oxide, and CO2, respectively. These results reveal that crystal-plane engineering of oxide catalysts could be a useful strategy for developing selective catalysts and for gaining fundamental understanding of complex heterogeneous catalytic reactions at the molecular level.
关键词[WOS]: COMPARATIVE PHOTOCATALYTIC ACTIVITY ;  PROPENE EPOXIDATION ;  OXIDE NANOCRYSTALS ;  PARTICLE-SIZE ;  SHAPE ;  COPPER ;  PERFORMANCE ;  SURFACES ;  REACTIVITY ;  EVOLUTION
语种: 英语
WOS记录号: WOS:000335202700016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/143899
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.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, CAS Key Lab Mat Energy Convers,Dept Chem Phys, Hefei 230026, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Zhejiang Normal Univ, Inst Phys Chem, Jinhua 321004, Peoples R China

Recommended Citation:
Hua, Qing,Cao, Tian,Gu, Xiang-Kui,et al. Crystal-Plane-Controlled Selectivity of Cu2O Catalysts in Propylene Oxidation with Molecular Oxygen[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2014,53(19):4856-4861.
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