Elucidating the Domain Structure of the Cobalt Oxide Water Splitting Catalyst by X-ray Pair Distribution Function Analysis

被引：144
作者：
Du, Pingwu [1 ]
Kokhan, Oleksandr [1 ]
Chapman, Karena W. [2 ]
Chupas, Peter J. [2 ]
Tiede, David M. [1 ]
机构：
[1] Argonne Natl Lab, Adv Photon Source, Chem Sci & Engn Div, Argonne, IL 60439 USA
[2] Argonne Natl Lab, Adv Photon Source, Xray Sci Div, Argonne, IL 60439 USA
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2012年 / 134卷 / 27期
关键词：
CRYSTAL-STRUCTURE; PHOSPHATE; OXIDATION; CHEMISTRY; RESOLUTION; COMPLEX;
D O I：
10.1021/ja303826a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Pair distribution function (PDF) analysis was applied for structural characterization of the cobalt oxide water-splitting catalyst films using high energy X-ray scattering. The catalyst was found to be composed of domains consistent with a cobalt dioxide lattice sheet structure, possibly containing a Co4O4 cubane-type "defect". The analysis identifies the film to consist of domains composed of 13-14 cobalt atoms with distorted coordination geometries that can be modeled by alteration in terminal oxygen atom positions at the domain edge. Phosphate is seen as a disordered component in the films. This work establishes an approach that can be applied to study the structure of in situ cobalt oxide water-splitting film under functional catalytic conditions.
引用
收藏
页码：11096 / 11099
页数：4
相关论文
共 33 条
  • [1] Beyond crystallography: the study of disorder, nanocrystallinity and crystallographically challenged materials with pair distribution functions
    Billinge, SJL
    Kanatzidis, MG
    [J]. CHEMICAL COMMUNICATIONS, 2004, (07) : 749 - 760
  • [2] Applications of an amorphous silicon-based area detector for high-resolution, high-sensitivity and fast time-resolved pair distribution function measurements
    Chupas, Peter J.
    Chapman, Karena W.
    Lee, Peter L.
    [J]. JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2007, 40 : 463 - 470
  • [3] Application of high-energy X-rays and Pair-Distribution-Function analysis to nano-scale structural studies in catalysis
    Chupas, Peter J.
    Chapman, Karena W.
    Chen, Hailong
    Grey, Clare P.
    [J]. CATALYSIS TODAY, 2009, 145 (3-4) : 213 - 219
  • [4] Solar Energy Supply and Storage for the Legacy and Non legacy Worlds
    Cook, Timothy R.
    Dogutan, Dilek K.
    Reece, Steven Y.
    Surendranath, Yogesh
    Teets, Thomas S.
    Nocera, Daniel G.
    [J]. CHEMICAL REVIEWS, 2010, 110 (11) : 6474 - 6502
  • [5] Development of Bioinspired Mn4O4-Cubane Water Oxidation Catalysts: Lessons from Photosynthesis
    Dismukes, G. Charles
    Brimblecombe, Robin
    Felton, Greg A. N.
    Pryadun, Ruslan S.
    Sheats, John E.
    Spiccia, Leone
    Swiegers, Gerhard F.
    [J]. ACCOUNTS OF CHEMICAL RESEARCH, 2009, 42 (12) : 1935 - 1943
  • [6] Egami T, 2003, PERGAMON MATER SER, V7, P55
  • [7] Preface on making oxygen
    Eisenberg, Richard
    Gray, Harry B.
    [J]. INORGANIC CHEMISTRY, 2008, 47 (06) : 1697 - 1699
  • [8] Hydrogen production by molecular photocatalysis
    Esswein, Arthur J.
    Nocera, Daniel G.
    [J]. CHEMICAL REVIEWS, 2007, 107 (10) : 4022 - 4047
  • [9] Architecture of the photosynthetic oxygen-evolving center
    Ferreira, KN
    Iverson, TM
    Maghlaoui, K
    Barber, J
    Iwata, S
    [J]. SCIENCE, 2004, 303 (5665) : 1831 - 1838
  • [10] Electrochemical Water Oxidation with Cobalt-Based Electrocatalysts from pH 0-14: The Thermodynamic Basis for Catalyst Structure, Stability, and Activity
    Gerken, James B.
    McAlpin, J. Gregory
    Chen, Jamie Y. C.
    Rigsby, Matthew L.
    Casey, William H.
    Britt, R. David
    Stahl, Shannon S.
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (36) : 14431 - 14442
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