THE INFLUENCE OF OXIDATIVE PRETREATMENT OF GRAPHITE-ELECTRODES ON THE CATALYSIS OF THE CR-3+/CR-2+ AND FE-3+/FE-2+ REDOX REACTIONS

被引：45

作者：

HOLLAX, E

CHENG, DS

机构：

[1] Fraunhofer-Inst fuer Solare, Energiesysteme, Freiburg, West Ger, Fraunhofer-Inst fuer Solare Energiesysteme, Freiburg, West Ger

来源：

CARBON | 1985年 / 23卷 / 06期

关键词：

CATALYSIS - CHEMICAL REACTIONS - Redox - ENERGY STORAGE - SURFACES;

D O I：

10.1016/0008-6223(85)90225-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Cyclic voltammetry was applied to investigate redox couple reactions in HCl electrolytes on highly oriented pyrographite electrodes activated by oxidative pretreatment. The activation effect observed was unstable for the Cr**3** plus /Cr**2** plus reaction in comparison to the Fe**3** plus reduction. It is concluded that acidic surface oxides are participating in the redox reaction. These oxides are reduced, however, in the case of Cr**3** plus reduction near the potential of hydrogen evolution.

引用

页码：655 / 664

页数：10

共 43 条

[1] Adsorption by activated sugar charcoal I [J].

Bartell, FE ;

Miller, EJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1922, 44 :1866-1880

[2] ACIDIC SURFACE OXIDE STRUCTURES ON CARBON AND GRAPHITE .1. [J].

BARTON, SS ;

HARRISON, BH .

CARBON, 1975, 13 (04) :283-288

[3]

besenhard jo, 1983, ANGEW CHEM, V95, P954

[4]

BLARTON KF, 1975, ELECTROCHIM ACTA, V18, P869

[5]

Boehm H.-P., 1966, ANGEW CHEM, V78, P617, DOI [DOI 10.1002/ANGE.19660781202, DOI 10.1002/(ISSN)1521-3757]

[6]

BOEHM HP, 1964, ANGEW CHEM, V76, P742

[7]

BOEHM HP, 1976, 4 LOND INT C CARB GR, P344

[8]

Burstein R, 1929, Z PHYS CHEM-STOCH VE, V141, P219

[9]

CHEN YWD, 1981, J ELECTROCHEM SOC, V128, P1462

[10] THE INFLUENCE OF THALLIUM ON THE REDOX REACTION CR-3+/CR-2+ [J].

CHENG, DS ;

HOLLAX, E .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1985, 132 (02) :269-273

← 1 2 3 4 5 →