The mechanism of formic acid electro oxidation on iron tetrasulfophthalocyanine-modified platinum electrode

被引:25
作者
Zhang, Zhonghua [1 ]
Zhou, Xiaochun [1 ]
Liu, Changpeng [1 ]
Xing, Wei [1 ]
机构
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Electroanalyt Chem, Grad Sch Chinese Acad Sci, Changchun 130022, Jilin, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1016/j.elecom.2007.10.031
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The mechanism of formic acid electrooxidation on iron tetrasulfophthalocyanine (FeTSPc) modified Pt electrode was investigated with electrochemical methods. It was found that a "third-body" effect of FeTSPc on Pt electrode predominates during the electrooxidation process based on unusual electrochemical results. The modification leads formic acid electrooxidation to take place through a desired direct pathway, in which the mechanism is proposed to be the gradual dehydrogenation of formic acid and the reaction of formate with hydroxyl species. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:131 / 135
页数:5
相关论文
共 19 条
[1]   ELECTROCATALYSIS BY FOREIGN METAL MONOLAYERS - OXIDATION OF FORMIC-ACID ON PALLADIUM [J].
ADZIC, RR ;
SPASOJEVIC, MD ;
DESPIC, AR .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1978, 92 (01) :31-43
[2]   OXIDATION OF FORMIC-ACID AT NOBLE-METAL ELECTRODES PART .3. INTERMEDIATES AND MECHANISM ON PLATINUM-ELECTRODES [J].
CAPON, A ;
PARSONS, R .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1973, 45 (02) :205-231
[3]   OXIDATION OF FORMIC-ACID ON NOBLE-METAL ELECTRODES .2. COMPARISON OF BEHAVIOR OF PURE ELECTRODES [J].
CAPON, A ;
PARSONS, R .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1973, 44 (02) :239-254
[4]   Electro-oxidation of formic acid catalyzed by FePt nanoparticles [J].
Chen, Wei ;
Kim, Jaemin ;
Sun, Shouheng ;
Chen, Shaowei .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2006, 8 (23) :2779-2786
[5]   Preparation and voltammetric characterisation of bismuth-modified mesoporous platinum microelectrodes. Application to the electro oxidation of formic acid [J].
Daniele, Salvatore ;
Bergamin, Simone .
ELECTROCHEMISTRY COMMUNICATIONS, 2007, 9 (06) :1388-1393
[6]   A miniature air breathing direct formic acid fuel cell [J].
Ha, S ;
Adams, B ;
Masel, RI .
JOURNAL OF POWER SOURCES, 2004, 128 (02) :119-124
[7]   Time-dependent impedance of the electro-oxidation of methanol on polished polycrystalline platinum [J].
Melnick, RE ;
Palmore, GTR .
JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (39) :9449-9457
[8]   Impedance spectroscopy of the electro-oxidation of methanol on polished polycrystalline platinum [J].
Melnick, RE ;
Palmore, GTR .
JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (05) :1012-1025
[9]   Five current peaks in voltammograms for oxidations of formic acid, formaldehyde, and methanol on platinum [J].
Okamoto, H ;
Kon, W ;
Mukouyama, Y .
JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (32) :15659-15666
[10]   Stationary voltammogram for oxidation of formic acid on polycrystalline platinum [J].
Okamoto, H ;
Kon, W ;
Mukouyama, Y .
JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (14) :4432-4438