화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.32, No.2, 206-215, February, 2015
DOI10.1007/s11814-014-0186-0  Export Citation
Quaternary Pt2Ru1Fe1M1/C (M=Ni, Mo, or W) catalysts for methanol electro-oxidation reaction
Min Ku Jeon†, Ki Rak Lee, Hyung Joon Jeon1, Paul J. McGinn2, Kweon Ho Kang, and Geun Il Park
  • Nuclear Fuel Cycle Process Development Division, Korea Atomic Energy Research Institute, Daedeok-daero 989-111, Yuseong-gu, Daejeon 305-353, Korea
  • 1Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
  • 2Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN 46556, USA
E-mail:
Quaternary Pt2Ru1Fe1M1/C (M=Ni, Mo, or W) catalysts were investigated for the methanol electro-oxidation reaction (MOR). Electrocatalytic activities of the quaternary catalysts for CO electro-oxidation were studied via CO stripping experiments, and the Pt2Ru1Fe1Ni1/C and Pt2Ru1Fe1W1/C catalysts exhibited lowered on-set potential compared to that of a commercial PtRu/C catalyst. MOR activities of the quaternary catalysts were determined by linear sweep voltammetry (LSV) experiments, and the Pt2Ru1Fe1W1/C catalyst outperformed the commercial PtRu/C catalyst by 170 and 150% for the mass and specific activities, respectively. X-ray photoelectron spectroscopy (XPS) was employed to analyze surface oxidation states of constituent atoms, and it was identified that the structure of the synthesized catalysts are close to a nano-composite of Pt and constituent metal hydroxides and oxides. In addition, the XPS results suggested that the bi-functional mechanism accounts for the improved performance of the Pt2Ru1Fe1Ni1/C and Pt2Ru1 Fe1W1/C catalysts.
Keywords:Methanol Electro-oxidation Reaction;Direct Methanol Fuel Cell;Electrocatalyst;X-ray Photoelectron Spectroscopy;CO Electro-oxidation
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