Effect of oxide film on oxygen reduction current for the platinum-cobalt alloy electrodes in PEFC

被引：6
|
作者：
Tamura, Yuichi [1 ]
Taneda, Kento [1 ]
Ueda, Mikito [1 ]
Ohtsuka, Toshiaki [1 ]
机构：
[1] Hokkaido Univ, Grad Sch Engn, Kita Ku, Sapporo, Hokkaido 0608628, Japan
来源：
CORROSION SCIENCE | 2009年 / 51卷 / 07期
关键词：
Pt-Co alloy; Raman spectroscopy; Ellipsometry; Oxide film; PEFC cathode; DENSITY-FUNCTIONAL THEORY; METHANOL FUEL-CELLS; ELECTROCATALYSTS; CATALYSTS; CO; NI; STABILITY; TEMPERATURE; ADSORPTION; OXIDATION;
D O I：
10.1016/j.corsci.2008.10.030
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Effect of surface oxide on Pt-Co alloy electrodes on the oxygen reduction reaction (ORR) was investigated in 0.5 M sulfuric acid Solution by electrochemistry, ellipsometry. laser Raman scattering spectroscopy, and XPS. The oxide as thick as 1-2 nm increases the overpotential of ORR and falls down efficiency of PEFC. The thickness of the oxide films is precisely determined by ellipsometry. The oxide film 1.9 nm thick was formed on Pt-50 mol% Co electrode by constant potential oxidation at 1.20 V and the film 1.5 nm thick remains on the electrode at 0.6 V at which ORR already starts. The remaining oxide decreases the current density of ORR and increases the overpotential. On pure Pt electrode, the similar influence of the oxide filrn was observed. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1560 / 1564
页数：5
相关论文
共 50 条
  • [31] Three-Dimensionally Connected Platinum-Cobalt Nanoparticles as Support-Free Electrocatalysts for Oxygen Reduction
    Liao, Qiancheng
    Kuroki, Hidenori
    Tamaki, Takanori
    Arao, Masazumi
    Matsumoto, Masashi
    Imai, Hideto
    Yamaguchi, Takeo
    ACS APPLIED NANO MATERIALS, 2025, 8 (07) : 3323 - 3332
  • [32] Immobilization of platinum-cobalt and platinum-nickel bimetallic nanoparticles on pomegranate peel extract-treated reduced graphene oxide as electrocatalysts for oxygen reduction reaction
    Sravani, B.
    Raghavendra, P.
    Chandrasekhar, Y.
    Reddy, Y. Veera Manohara
    Sivasubramanian, R.
    Venkateswarlu, K.
    Madhavi, G.
    Sarma, L. Subramanyarn
    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2020, 45 (13) : 7680 - 7690
  • [33] Low-loading platinum-cobalt electrocatalyst supported on hollow carbon for enhanced oxygen reduction reaction
    Lee, Youngbin
    Lee, Jeong Hee
    Lee, Dongwook
    Oh, Sion
    Park, Jongwook
    Im, Kyungmin
    Yoo, Sung Jong
    Kim, Jinsoo
    CHEMICAL ENGINEERING JOURNAL, 2024, 500
  • [34] Catalytic activity of titanium oxide for oxygen reduction reaction as a non-platinum catalyst for PEFC
    Kim, Jin-Hwan
    Ishihara, Akimitsu
    Mitsushima, Shigenori
    Kamiya, Nobuyuki
    Ota, Ken-Ichiro
    ELECTROCHIMICA ACTA, 2007, 52 (07) : 2492 - 2497
  • [35] POTENTIOSTATIC MEASURMENTS ON OXYGEN DEVELOPMENT AND OXIDE FILM FORMATION ON PLATINUM ELECTRODES
    SCHULTZE, JW
    ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-FRANKFURT, 1970, 73 (1-3): : 29 - &
  • [36] ELECTRODE KINETICS OF OXYGEN REDUCTION ON OXIDE-FREE PLATINUM ELECTRODES
    DAMJANOVIC, A
    BRUSIC, V
    ELECTROCHIMICA ACTA, 1967, 12 (06) : 615 - +
  • [37] INHIBITION OF REDUCTION CURRENT OF OXYGEN BY CYSTEINE AND GLUTATHIONE AT SMOOTH PLATINUM ELECTRODES
    PRADAC, J
    KORYTA, J
    ANALYTICAL LETTERS, 1970, 3 (07) : 335 - &
  • [38] Strong electrostatic adsorption approach to the synthesis of sub-three nanometer intermetallic platinum-cobalt oxygen reduction catalysts
    Ma, Yanling
    Kuhn, Andrew N.
    Gao, Wenpei
    Al-Zoubi, Talha
    Du, Hui
    Pan, Xiaoqing
    Yang, Hong
    NANO ENERGY, 2021, 79 (79)
  • [39] Electrodeposited Platinum-Cobalt Alloy Coatings. Mechanical and Magnetic Properties.
    Baumgaertner, M.E.
    Raub, Ch.J.
    Cavallotti, P.
    Turrilli, G.
    1600, (41):
  • [40] Nanoporous platinum-cobalt alloy for electrochemical sensing for ethanol, hydrogen peroxide, and glucose
    Xu, Caixia
    Sun, Fenglei
    Gao, Hua
    Wang, Jinping
    ANALYTICA CHIMICA ACTA, 2013, 780 : 20 - 27
12345