Effects of carbon supports on Pt distribution, ionomer coverage and cathode performance for polymer electrolyte fuel cells

Effects of carbon supports on Pt distribution, ionomer coverage and cathode performance for polymer electrolyte fuel cells

We investigate the effects of the carbon supports on the Pt distribution, ionomer coverage and cathode performance of carbon-supported Pt catalysts, by using STEM observation, N2 adsorption analysis and electrochemical characterization. According to the STEM observation, the effective Pt surface are...

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Veröffentlicht in:Journal of power sources 2016-05, Vol.315, p.179-191
Hauptverfasser: Park, Young-Chul, Tokiwa, Haruki, Kakinuma, Katsuyoshi, Watanabe, Masahiro, Uchida, Makoto
Format: Artikel
Sprache:eng
Schlagworte:
Carbon
Carbon-supported Pt catalysts
Catalysis
Catalysts
Cathodes
Effective Pt surface area
Electrolytic cells
Fuel cells
Ionomer distribution
Ionomers
Platinum
Polymer electrolyte fuel cells
Pore structure
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Beschreibung
Zusammenfassung:We investigate the effects of the carbon supports on the Pt distribution, ionomer coverage and cathode performance of carbon-supported Pt catalysts, by using STEM observation, N2 adsorption analysis and electrochemical characterization. According to the STEM observation, the effective Pt surface area (S(e)Pt), which is determined by the location and size of the Pt particles on the supports, increases in the following order: c-Pt/CB 
ISSN:0378-7753
1873-2755
DOI:10.1016/j.jpowsour.2016.02.091