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Citation: LI Fen, XU Xian-Zhi, ZHU Mei, SONG Hui. Effect of Catalyst Layer Location on Performance of Gas Diffusion Electrode[J]. Chinese Journal of Applied Chemistry, ;2008, 25(6): 750-752. shu

Effect of Catalyst Layer Location on Performance of Gas Diffusion Electrode

1.
Department of Mechanics and Mechanical Engineering, University of Science & Technology of China, Hefei 230027

Corresponding author: XU Xian-Zhi,
Received Date: 2 April 2007
Available Online: 9 October 2007
Fund Project: 安徽省人才开发基金资助项目(2006Z029) (2006Z029)

Take gas diffusion electrode of zinc-air battery for example and add catalyst by layers,we studied the effect of changing catalyst layer location on the performance of gas diffusion electrode.Based on the current collection,the cathode can be divided into two sides as A side and B side.Based on the catalyst location difference,four kinds of cathode have been made,where the catalyst was added to both sides,neither side,only A side and only B side.The discharge results of the four kinds of the cathodes were compared and analyzed under the same condition.Experiment shows that the performance of the gas diffusion electrode in which the catalyst layer was added to the electrolyte side (B side) is better.The concentration polarization and Ohm polarization of the zinc-battery can be increased when the catalyst was added to the air side (A side).
- gas diffusion electrode,
- catalyze layer,
- zinc-air battery
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