HIGH-TEMPERATURE ELECTROLYSIS CELL PERFORMANCE CHARACTERIZATION

被引：39

作者：

MASKALICK, NJ

机构：

[1] Westinghouse Electric Corp,, Pittsburgh, PA, USA, Westinghouse Electric Corp, Pittsburgh, PA, USA

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 1986年 / 11卷 / 09期

关键词：

ELECTROLYSIS; -; ELECTROLYTES; HYDROGEN; Manufacture; STEAM; Electrolysis;

D O I：

10.1016/0360-3199(86)90122-9

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：

Electrochemical cells employing yttria-stabilized zirconia solid electrolyte were evaluated in the electrolysis of steam at 800-1050 degree C. Performance levels of 1. 23 V at 300 mA cm** minus **2 were obtained with current efficiencies approaching 100%. A limiting current was approached when hydrogen content in the steam exceeded approximately 90% (650 mA cm** minus **2; 1000 degree C). Voltage-current behavior prior to diffusion control follows a Tafel-type slope of approximately 250 m V per decade. Polarization in this region has a temperature dependence corresponding to approximately d ln I/d(1/T) equals 30,000/R which permits prediction of cell performance above the 1050 degree C maximum testing temperature.

引用

页码：563 / 570

页数：8