Studies on Methanol-tolerant Cathode Electrocatalysts Cobalt Tetracarboxylic Phthalocyanine Supported on Carbon Black(CoPcTc/C) in Direct Methanol Fuel Cell

Chem. J. Chinese Universities ›› 2003, Vol. 24 ›› Issue (7): 1246.

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Studies on Methanol-tolerant Cathode Electrocatalysts Cobalt Tetracarboxylic Phthalocyanine Supported on Carbon Black(CoPcTc/C) in Direct Methanol Fuel Cell

LI Xu-Guang¹, XING Wei¹, LU Tian-Hong^1,2, JI Yi-Ping¹, LIANG Hong-Ying³, SHAO Yun³

1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
2. Department of Chemistry and Environment Science, Nanjing Normal University, Nanjing 210097, China;
3. Faculty of Chemistry, Northeast Normal University, Changchun 130024, China

Received:2002-03-26 Online:2003-07-24 Published:2003-07-24

Abstract

Abstract: The electrocatalytic performance of Pt/C and cobalt tetracarboxylic phthalocyanine supported on carbon black(CoPcTc/C) for oxygen reduction were compared. The results showed that the presence of methanol reduced seriously the electrocatalytic activities of Pt/C for the oxygen reduction, while it had no effect on that of heat-treated CoPcTc/C at 800 ℃(CoPcTc/C-800). And the electrocatalytic activity of CoPcTc/C-800 for the oxygen reduction was higher than those heat-treated at other temperatures. Therefore, CoPcTc/C-800 was a promising candidate of methanol-tolerant cathode electrocatalyst in DMFC. XPS result reveals that active site of CoPcTc/C-800 may be the composite of CoN₄ and Co⁰.

Key words: CoPcTc/C, DMFC, Oxygen reduction, Methanol-tolerant, Electrocatalyst

CLC Number:

O646

TrendMD:

LI Xu-Guang, XING Wei, LU Tian-Hong, JI Yi-Ping, LIANG Hong-Ying, SHAO Yun . Studies on Methanol-tolerant Cathode Electrocatalysts Cobalt Tetracarboxylic Phthalocyanine Supported on Carbon Black(CoPcTc/C) in Direct Methanol Fuel Cell[J]. Chem. J. Chinese Universities, 2003, 24(7): 1246.

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Studies on Methanol-tolerant Cathode Electrocatalysts Cobalt Tetracarboxylic Phthalocyanine Supported on Carbon Black(CoPcTc/C) in Direct Methanol Fuel Cell

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