Influence of Electrolytes and Membranes on Cell Operation for Syn-Gas Production

被引:40
作者
Dufek, Eric J. [1 ]
Lister, Tedd E. [1 ]
McIlwain, Michael E. [1 ]
机构
[1] Idaho Natl Lab, Idaho Falls, ID 83415 USA
关键词
ELECTROCHEMICAL REDUCTION; CARBON-DIOXIDE; CO2; REDUCTION; METAL-ELECTRODES; OXYGEN EVOLUTION; DIMETHYL ETHER; SILVER;
D O I
10.1149/2.010204esl
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The impact of membrane type and electrolyte composition for the electrochemical generation of synthesis gas (CO + H-2) using an electrolysis cell containing a Ag gas diffusion cathode is presented. Changing from a cation exchange membrane to an anion exchange membrane extended the cell operational time at low cell voltages (E-cell) without impacting product composition. The use of KOH as the catholyte decreased the E-cell and resulted in a minimum electrolyte cost reduction of 34%. The prime factor in determining operational time at low E-cell was the ability to maintain a sufficiently high anolyte pH. (C) 2012 The Electrochemical Society. [DOI:10.1149/2.010204esl] All rights reserved.
引用
收藏
页码:B48 / B50
页数:3
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