Open Pore Architecture of an Ordered Mesoporous IrO2 Thin Film for Highly Efficient Electrocatalytic Water Oxidation

被引：36
作者：
Chandra, Debraj [1 ]
Abe, Naoto [1 ]
Takama, Daisuke [1 ]
Saito, Kenji [1 ]
Yui, Tatsuto [1 ]
Yagi, Masayuki [1 ,2 ]
机构：
[1] Niigata Univ, Dept Mat Sci & Technol, Fac Engn, Niigata 9502181, Japan
[2] Japan Sci & Technol Agcy JST, Precursory Res Embryon Sci PRESTO, Kawaguchi, Saitama 3320012, Japan
来源：
CHEMSUSCHEM | 2015年 / 8卷 / 05期
关键词：
electrocatalysis; iridium oxide; mesoporous materials; nanostructure engineering; water oxidation; OXYGEN EVOLUTION REACTION; IRIDIUM; ELECTRODES; CRYSTALLIZATION; PERFORMANCE; DEPOSITION; CATALYST; STORAGE;
D O I：
10.1002/cssc.201402911
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We report the first accessible channel-like open pore architecture of ordered 2D hexagonal mesoporous IrO2 films and its utilization as an efficient anode for electrocatalytic water oxidation. A well-ordered mesostructure of circa 7nm pores were obtained by a facile one-pot soft-templating strategy, employing a [Ir(OH)(6)](2-) precursor stabilized by a triblock copolymer PluronicF127 as a pore-directing template. A mesoporous IrO2 film calcined at 400 degrees C (approximate to 70nm thick) affords a high surface area of 512m(2)cm(-3) and 2times higher O-2 evolution during the electrocatalytic water oxidation relative to an untemplated IrO2 coating film.
引用
收藏
页码：795 / 799
页数：5
相关论文
共 58 条
  • [51] Block copolymer templating syntheses of mesoporous metal oxides with large ordering lengths and semicrystalline framework
    Yang, PD
    Zhao, DY
    Margolese, DI
    Chmelka, BF
    Stucky, GD
    [J]. CHEMISTRY OF MATERIALS, 1999, 11 (10) : 2813 - 2826
  • [52] Photoassisted Overall Water Splitting in a Visible Light-Absorbing Dye-Sensitized Photoelectrochemical Cell
    Youngblood, W. Justin
    Lee, Seung-Hyun Anna
    Kobayashi, Yoji
    Hernandez-Pagan, Emil A.
    Hoertz, Paul G.
    Moore, Thomas A.
    Moore, Ana L.
    Gust, Devens
    Mallouk, Thomas E.
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (03) : 926 - +
  • [53] Zhao D, 1998, ADV MATER, V10, P1380, DOI 10.1002/(SICI)1521-4095(199811)10:16<1380::AID-ADMA1380>3.0.CO
  • [54] 2-8
  • [55] Anodic Deposition of Colloidal Iridium Oxide Thin Films from Hexahydroxyiridate(IV) Solutions
    Zhao, Yixin
    Vargas-Barbosa, Nella M.
    Hernandez-Pagan, Emil A.
    Mallouk, Thomas E.
    [J]. SMALL, 2011, 7 (14) : 2087 - 2093
  • [56] A High Yield Synthesis of Ligand-Free Iridium Oxide Nanoparticles with High Electrocatalytic Activity
    Zhao, Yixin
    Hernandez-Pagan, Emil A.
    Vargas-Barbosa, Nella M.
    Dysart, Jennifer L.
    Mallouk, Thomas E.
    [J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2011, 2 (05): : 402 - 406
  • [57] Formation and stability of oxide films on platinum-group metals in electrochemical and related environments as probed by surface-enhanced Raman spectroscopy: Dependence on the chemical oxidant
    Zou, SZ
    Chan, HYH
    Williams, CT
    Weaver, MJ
    [J]. LANGMUIR, 2000, 16 (02) : 754 - 763
  • [58] Organized mesoporous TiO2 films exhibiting greatly enhanced performance in dye-sensitized solar cells
    Zukalová, M
    Zukal, A
    Kavan, L
    Nazeeruddin, MK
    Liska, P
    Grätzel, M
    [J]. NANO LETTERS, 2005, 5 (09) : 1789 - 1792
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