Pt/C–RuO2·xH2O catalyst was successfully prepared through the deposition of hydrated RuO2·xH2O on Pt/C catalyst for a proton exchange membrane fuel cell (PEMFC). The Pt/C and Pt/C–RuO2·xH2O catalysts were compared using physical and electrochemical techniques. The ON–OFF cycling test results showed sudden cell failures after 1,850 and 1,160 cycles for Pt/C–RuO2·xH2O and Pt/C, respectively. Nearly 11.2% of the cell voltage of Pt/C–RuO2·xH2O was lost after 1,160 cycles, compared with 26.3% for Pt/C. The charge transfer resistances of Pt/C–RuO2·xH2O and Pt/C increased from 0.5217 and 0.5366 Ω to 0.5732 and 0.7261 Ω, respectively. The remaining electrochemical active surface area of Pt was about 30.6% in Pt/C and about 68.9% in Pt/C–RuO2·xH2O after the ON–OFF test. The mean particle size of Pt/C significantly increased from 4.6 to 8.9 nm, whereas that of Pt/C–RuO2·xH2O increased from 4.3 to 6.3 nm. Therefore, the long-term durability of Pt/C–RuO2·xH2O in a PEMFC was much better than that of Pt/C.
PEMFC Pt/C–RuO2·xH2O Durability
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The financial support of this work, by the National Natural Science Foundation of China under contract No.20776023, 20976018 is gratefully acknowledged.
Wang ZB, Zou PJ, Chu YY, Shao YY, Yin GP (2009) Durability studies on performance degradation of Pt/C catalysts of proton exchange membrane fuel cell. Int J Hydrogen Energy 34:4387CrossRefGoogle Scholar
Zhang SS, Yuan XZ, Wang HJ, Mérida W, Zhu H, Shen J et al (2009) A review of accelerated stress tests of MEA durability in PEM fuel cells. Int J Hydrogen Energy 34:388CrossRefGoogle Scholar
Zhang SS, Yuan XZ, Hin JNC, Wang HJ, Andreas Friedrich K, Schulze M (2009) A review of platinum-based catalyst layer degradation in proton exchange membrane fuel cells. J Power Sources 194:588CrossRefGoogle Scholar
Liu D, Case S (2006) Durability study of proton exchange membrane fuel cells under dynamic testing conditions with cyclic current profile. J Power Sources 162:521CrossRefGoogle Scholar
Seo D, Lee J, Park S, Rhee J, Won Choi S, Shul Y-G (2011) Investigation of MEA degradation in PEM fuel cell by on/off cyclic operation under different humid conditions. Int J Hydrogen Energy 36:1828CrossRefGoogle Scholar
Liu X, Chen J, Liu G, Zhang L, Zhang HM, Yi BL (2010) Enhanced long-term durability of proton exchange membrane fuel cell cathode by employing Pt/TiO2/C catalysts. J Power Sources 195:4098CrossRefGoogle Scholar
Prasanna M, Cho EA, Lim T-H, Oh I-H (2008) Effects of MEA fabrication method on durability of polymer electrolyte membrane fuel cells. Electrochim Acta 53:5434CrossRefGoogle Scholar
Zhou ZM, Shao ZG, Qin XP, Chen XG, Wei ZD, Yi BL (2010) Durability study of Pt–Pd/C as PEMFC cathode catalyst. Int J Hydrogen Energy 35:1719CrossRefGoogle Scholar
Xie J, Wood DL III, More KL, Atanassov P, Borup RL (2005) Microstructural changes of membrane electrode assemblies during PEFC durability testing at high humidity conditions. J Electrochem Soc 152(2005):A1011CrossRefGoogle Scholar