Citation: ZHANG Jie-Jing, WANG Yu-Xin, ZHANG Jian-Feng, XU Li. Simulation of Orientated Catalyst Layer in PEMFC Using a Microstructure Lattice Model[J]. Acta Physico-Chimica Sinica, ;2015, 31(12): 2316-2323. doi: 10.3866/PKU.WHXB201510221 shu

Simulation of Orientated Catalyst Layer in PEMFC Using a Microstructure Lattice Model

1.
1 School of Life Sciences, Jilin Agricultural University, Jilin Province Innovation Platform of Straw Comprehensive Utilization Technology, Changchun 130118, P. R. China;
2.
2 State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China

Corresponding author: ZHANG Jie-Jing,
Received Date: 27 August 2015
Available Online: 22 October 2015
Fund Project: 国家自然科学基金(20606025) (20606025) 吉林农业大学科研启动基金(201409) (201409)长春市科技局(2013173)资助项目 (2013173)

The orientated cathode in a proton exchange membrane fuel cell was simulated and compared with a random cathode using a microstructure lattice model. The differences between catalyst utilization and electrode performance were studied. Transport and electrochemical reactions in the model catalyst layer were calculated. The orientated cathode performed better than the traditional random cathode and was explained by variations of the oxygen levels, the over potential and the reaction rate across the catalyst layer with cell current density. Additionally, we examined the electrode performance at different thicknesses. Unlike the traditional random cathode, a thinner orientated cathode performed better.
- Orientated electrode,
- Microstructure,
- Lattice model,
- Catalyst utilization,
- Pt/C particle configuration
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