Effect of Nafion Loading in the Oxygen Electrode on Performance of the PEM-type Water Electrolyzer

Effect of Nafion Loading in the Oxygen Electrode on Performance of the PEM-type Water Electrolyzer

Hongchao MaLixia Yue Xiaoli Dong Yinghuan Fu Jianhui Liao Changpeng Liu Wei Xing 

School of Chemistry Engineering & Material, Dalian Polytechnic University, Dalian 116034, Liaoning, PR China

Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China

Corresponding Author Email: 
m-h-c@sohu.com
Page: 
13-17
|
DOI: 
https://doi.org/10.14447/jnmes.v16i1.37
Received: 
14 May 2012
|
Accepted: 
3 July 2012
|
Published: 
15 August 2012
| Citation
Abstract: 

The electrocatalyst layers of the oxygen electrode with various Nafion loading for water electrolyzer with polymer electrolyte membrane (PEM-type) were prepared, and the relationship between Nafion loading in the oxygen electrode and the performance of PEM- type water electrolyzer were examined by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and Steady-state gal- vanostatic polarization (GP). It is found that the appropriate Nafion loading in the oxygen electrode (i.e., 0.5 and 1.0 mg/cm2) can increase the electrochemically active area and decrease resistance of electrocatalyst layer. The decrease in working voltage for water electrolyzer with 0.5 and 1.0 mg/cm2 Nafion loading was 0.23 and 0.19 V at a current density of 1A/cm2, compared with that of water electrolyzer with- out Nafion loading (2.25V).

Keywords: 

Nafion loading, water electrolysis, oxygen electrode

1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusion
5. Acknowledgements
  References

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