Oxygen reduction on molybdenum carbide derived micromesoporous carbon electrode in alkaline solution

被引：32

作者：

Jaeger, R. ^{[1
]}

Kasatkin, P. E. ^{[1
]}

Haerk, E. ^{[1
]}

Lust, E. ^{[1
]}

机构：

[1] Univ Tartu, Inst Chem, EE-50411 Tartu, Estonia

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2013年 / 35卷

关键词：

Oxygen reduction reaction; Carbide derived carbon; Alkaline fuel cell; Rotating disc electrode method; CATALYSTS; ELECTROCATALYSTS;

D O I：

10.1016/j.elecom.2013.08.001

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Micromesoporous carbide derived carbon powder, synthesized from molybdenum carbide (MO2C) at 750 degrees C using high-temperature chlorination method, and was used as a catalyst for oxygen electroreduction. Cyclic voltammetry and rotating disc electrode data show that very high cathodic current density of - 70 A m(-2) has been achieved for 0.1 M KOH aqueous solution saturated with O-2. There are two clearly separable linear regions in the Tafel plot for C(MO2C) electrode, indicating that the oxygen reduction reaction (ORR) mechanism depends on the electrode potential applied. Very high half-wave potentials have been measured, demonstrating that C(MO2C) is a very active catalyst for ORR. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：97 / 99

页数：3

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