PERFORMANCE OF POROUS NICKEL ELECTRODE FOR ALKALINE H2O2 FUEL-CELL

被引：12

作者：

ALSALEH, MA

GULTEKIN, S

ALZAKRI, AS

CELIKER, H

机构：

[1] Department of Chemical Engineering, King Fahd University of Petroleum and Minerals, Dhahran

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 1994年 / 19卷 / 08期

关键词：

D O I：

10.1016/0360-3199(94)90160-0

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：

Polarization measurements on specially prepared porous nickel electrodes were carried out in a half set-up to determine the intrinsic parameters (exchange current density and charge transfer coefficient) using the spherical grain model developed earlier. The values found for exchange current densities were (6 x 10(-6) to 2.8 x 10(-4) A cm-2) higher than that reported in the literature which shows the superiority of this electrode. Exchange current density followed an exponential relation with temperature, Apparent activation energies were found to decrease with increasing overpotential and the activation energy corresponding to zero overpotential by extrapolation was found to be 31.4 kJ mol-1.

引用

页码：713 / 718

页数：6

共 6 条

[1] A METHOD OF IR DROP MEASUREMENTS USING A CURRENT INTERRUPTION TECHNIQUE - AN APPLICATION TO HALF CELL STUDIES WITH POROUS GAS-DIFFUSION ELECTRODES [J].