THE ROLE OF SURFACE MOLYBDENUM SPECIES IN METHANOL OXIDATION ON THE PLATINUM-ELECTRODE

被引：27

作者：

NAKAJIMA, H

KITA, H

机构：

[1] Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo

来源：

ELECTROCHIMICA ACTA | 1990年 / 35卷 / 05期

关键词：

D O I：

10.1016/0013-4686(90)90080-J

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The previous conclusion that the redox couple of Mo(III)/Mo(IV) plays a key role in the enhancement of the catalytic activity of the Pt electrode was confirmed even at a high temperature of 80°C. An extended analysis of voltammograms to the electrode coadsorbed with molybdenum and methanol species showed that the highest oxidation current is obtained at an equal coverage of the molybdenum and methanol species. The bifunctional mechanism was discussed. © 1990.

引用

页码：849 / 853

页数：5

共 19 条

[1]

Bagotzky V.S., 1966, ELECTROCHIM ACTA, V11, P1439

[2]

Bard A.J., 1976, ENCY ELECTROCHEMISTR, V5, P135

[3] COMPOSITION OF ELECTROSORBED METHANOL [J].

BIEGLER, T .

JOURNAL OF PHYSICAL CHEMISTRY, 1968, 72 (05) :1571-&

[4]

Binder H., 1972, ELECTROCATALYSIS FUE, P43

[5]

BREITER MW, 1968, DISCUSS FARADAY SOC, V45, P79

[6]

INADA R, UNPUB J ELECTROANAL

[7] A STUDY OF OXIDATION OF ADSORBED FILMS FORMED ON PLATINIZED PLATINUM IN METHANOL FORMIC ACID AND CARBON DIOXIDE SOLUTIONS [J].

KAMATH, VN ;

LAL, H .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1968, 19 (1-2) :137-&

[8]

KITA H, 1988, J ELECTROANAL CHEM, V249, P181

[9] NEW RESULTS FOR THE ELECTROSORPTION OF METHANOL ON POLYCRYSTALLINE PLATINUM IN ACID-MEDIUM OBTAINED BY PROGRAMMED POTENTIAL VOLTAMMETRY [J].

PAPOUTSIS, A ;

LEGER, JM ;

LAMY, C .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1987, 234 (1-2) :315-327

[10] ELECTROCATALYSIS BY AD-ATOMS .20. RATE-DETERMINING STEP IN METHANOL OXIDATION ENHANCED BY OXYGEN-ADSORBING AD-ATOMS [J].

SHIBATA, M ;

MOTOO, S .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1986, 209 (01) :151-158

← 1 2 →