Oxygen Reduction Activity of TiO2 Single Crystals in Acidic Media

被引：1
|
作者：
Ota, K. [1 ]
Hirata, J. [1 ]
Nagai, T. [1 ]
Arao, M. [2 ]
Matsumoto, M. [2 ]
Kuroda, Y. [1 ]
Matsuzawa, K. [1 ]
Imai, H. [2 ]
Mitsushima, S. [1 ,3 ]
Ishihara, A. [3 ]
机构：
[1] Yokohama Natl Univ, Green Hydrogen Res Ctr, Yokohama, Kanagawa 2408501, Japan
[2] NISSAN ARC Ltd, Device Anal Dept, Yokosuka, Kanagawa 2370061, Japan
[3] Yokohama Natl Univ, Inst Adv Sci, Yokohama, Kanagawa 2408501, Japan
来源：
POLYMER ELECTROLYTE FUEL CELLS AND ELECTROLYZERS 18 (PEFC&E 18) | 2018年 / 86卷 / 13期
关键词：
CATALYSTS;
D O I：
10.1149/08613.0549ecst
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Development of nonplatinum electrocatalysts for the oxygen reduction reaction (ORR) is necessary for wide commercialization of polymer electrolyte fuel cells. We focused on Group 4 and 5 metal oxide-based compounds for use as nonprecious metal cathodes. We need to investigate the active sites of oxide-based cathodes at the atomic level to enhance the oxygen reduction activity. We used rutile TiO2 single crystals with (100), (001), (110), and (110) faces as model electrodes. The ORR activity strongly depended on the crystal face. In addition, reduction under pure hydrogen at 600 degrees C for 1 h was effective in enhancing the ORR activity of the (110) plane.
引用
收藏
页码：549 / 558
页数：10
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