Chinese Journal of Catalysis ›› 2011, Vol. 32 ›› Issue (12): 1856-1863.DOI: 10.1016/S1872-2067(10)60297-5

• Research papers • Previous Articles     Next Articles

Pt-Ir-SnO2/C Electrocatalysts for Ethanol Oxidation in Acidic Media

ZHAO Lianhua1,2,*, Shigenori MITSUSHIMA2, Akimitsu ISHIHARA2, Koichi MATSUZAWA2 , Ken-ichiro OTA2   

  1. 1Department of Chemistry, College of Science, Yanbian University, Yanji 133002, Jilin, China; 2Graduate School of Engineering, Yokohama National University, Yokohama 240-8501, Japan
  • Received:2011-09-26 Revised:2011-10-18 Online:2011-12-21 Published:2015-04-23

Abstract:  A series of Pt-Ir-SnO2/C catalysts were synthesized by a modified Bönnemann method. An electrochemical study showed that the Pt-Ir0.07-SnO2/C catalyst had a three times higher ethanol oxidation current and a two times higher CO2 formation selectivity compared with the Pt/C catalyst under an application voltage of 0.5 V vs the RHE at 25 °C. This demonstrates that the Pt-Ir0.07-SnO2/C catalyst is a potentially ideal ethanol oxidation catalyst for direct ethanol fuel cells.

Key words: platinum, iridium, tin oxide, carbon, supported catalyst, ethanol, electro-oxidation, direct ethanol fuel cell