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Updated: Aug 7, 2026
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On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method
Published on: March 16, 2018
Preparation of high catalyst utilization electrodes for polymer electrolyte fuel cells
Jung Min Song1, Shinsuke Suzuki, Hiroyuki Uchida
1Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 4 Takeda, Kofu 400-8510, Japan.
Langmuir : the ACS Journal of Surfaces and Colloids
|June 28, 2006
Summary
A new method enhances polymer electrolyte fuel cell performance by improving catalyst utilization. Autoclave treatment uniformly disperses the platinum catalyst and Nafion ionomer, boosting efficiency.
Area of Science:
- Electrochemistry
- Materials Science
- Chemical Engineering
Background:
- Polymer electrolyte fuel cells (PEFCs) are crucial for clean energy.
- Efficient catalyst utilization is key to PEFC performance.
- Current methods face challenges in uniform catalyst distribution.
Purpose of the Study:
- To develop a novel preparation procedure for electrocatalyst layers in PEFCs.
- To enhance catalyst utilization and improve gas diffusivity.
- To optimize the integration of platinum catalysts and Nafion ionomer.
Main Methods:
- A novel autoclave treatment at 200°C followed by quenching was used to prepare catalyst ink.
- Commercial platinum on carbon black (Pt/CB) catalyst and Nafion ionomer solution were processed.
- Microstructure analysis using scanning transmission electron microscopy (STEM) was performed.
Main Results:
- The new method resulted in significantly improved cathode performance.
- High catalyst utilization (approx. 90% of Pt) was achieved.
- Uniform distribution of Nafion ionomer within Pt/CB agglomerates was observed, enhancing gas diffusivity.
Conclusions:
- The autoclave treatment effectively integrates Nafion ionomer into the catalyst structure.
- This novel preparation method offers superior catalyst utilization and PEFC performance compared to conventional methods.
