Crystal-Plane-Controlled Surface Restructuring and Catalytic Performance of Oxide Nanocrystals

被引:149
作者
Bao, Huizhi [1 ,2 ]
Zhang, Wenhua [3 ]
Hua, Qing [1 ,2 ]
Jiang, Zhiquan [1 ,2 ]
Yang, Jinlong [1 ,2 ]
Huang, Weixin [1 ,2 ]
机构
[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, CAS Key Lab Mat Energy Convers, Hefei 230026, Peoples R China
[2] Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Peoples R China
[3] Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China
基金
中国国家自然科学基金;
关键词
Cu2O nanocrystals; nanocatalysis; oxidation; structure-activity relationships; surface chemistry; SHAPE CHANGES; CO OXIDATION; IN-SITU; RECONSTRUCTION; REACTIVITY; MECHANISM;
D O I
10.1002/anie.201103698
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Crystal clear: Uniform Cu 2O nanooctahedra (o-Cu 2O) and nanocubes (c-Cu 2O) undergo surface restructuring during CO oxidation for the in-situ formation of catalytically active CuO thin films to give CuO/o-Cu 2O and CuO/c-Cu 2O, respectively (see picture). The structure and catalytic performance of CuO thin films are controlled by the crystal plane exposed on the underlying Cu 2O nanocrystals. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:12294 / 12298
页数:5
相关论文
共 27 条
  • [1] Shape-Dependent Reducibility of Cuprous Oxide Nanocrystals
    Bao, Huizhi
    Zhang, Wenhua
    Shang, Daili
    Hua, Qing
    Ma, Yunsheng
    Jiang, Zhiquan
    Yang, Jinlong
    Huang, Weixin
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (14) : 6676 - 6680
  • [2] Coadsorbate induced reconstruction of a stepped Pt(111) surface by sulfur and CO: A novel surface restructuring mechanism observed by scanning tunneling microscopy
    Batteas, JD
    Dunphy, JC
    Somorjai, GA
    Salmeron, M
    [J]. PHYSICAL REVIEW LETTERS, 1996, 77 (03) : 534 - 537
  • [3] Nanoscale chemical imaging of a working catalyst by scanning transmission X-ray microscopy
    de Smit, Emiel
    Swart, Ingmar
    Creemer, J. Fredrik
    Hoveling, Gerard H.
    Gilles, Mary K.
    Tyliszczak, Tolek
    Kooyman, Patricia J.
    Zandbergen, Henny W.
    Morin, Cynthia
    Weckhuysen, Bert M.
    de Groot, Frank M. F.
    [J]. NATURE, 2008, 456 (7219) : 222 - U39
  • [4] AN ALL-ELECTRON NUMERICAL-METHOD FOR SOLVING THE LOCAL DENSITY FUNCTIONAL FOR POLYATOMIC-MOLECULES
    DELLEY, B
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1990, 92 (01) : 508 - 517
  • [5] From molecules to solids with the DMol3 approach
    Delley, B
    [J]. JOURNAL OF CHEMICAL PHYSICS, 2000, 113 (18) : 7756 - 7764
  • [6] Ertl G., 2008, Handbook of Heterogeneous Catalysis, V1, DOI DOI 10.1002/9783527610044.HETCAT0130
  • [7] General insight into CO oxidation: A density functional theory study of the reaction mechanism on platinum oxides
    Gong, XQ
    Raval, R
    Hu, P
    [J]. PHYSICAL REVIEW LETTERS, 2004, 93 (10) : 106104 - 1
  • [8] A generalized synchronous transit method for transition state location
    Govind, N
    Petersen, M
    Fitzgerald, G
    King-Smith, D
    Andzelm, J
    [J]. COMPUTATIONAL MATERIALS SCIENCE, 2003, 28 (02) : 250 - 258
  • [9] Self-limited growth of a thin oxide layer on Rh(111) -: art. no. 126102
    Gustafson, J
    Mikkelsen, A
    Borg, M
    Lundgren, E
    Köhler, L
    Kresse, G
    Schmid, M
    Varga, P
    Yuhara, J
    Torrelles, X
    Quirós, C
    Andersen, JN
    [J]. PHYSICAL REVIEW LETTERS, 2004, 92 (12) : 126102 - 1
  • [10] Atom-resolved imaging of dynamic shape changes in supported copper nanocrystals
    Hansen, PL
    Wagner, JB
    Helveg, S
    Rostrup-Nielsen, JR
    Clausen, BS
    Topsoe, H
    [J]. SCIENCE, 2002, 295 (5562) : 2053 - 2055