Preparation of Nanoparticles of Pt and SnO2 Highly Dispersed on Carbon Black Support and Their Activity for Ethanol Oxidation Reaction

作者：Higuchi Eiji^*; Miyata Kazumasa; Inoue Hiroshi

来源：Electrochemistry, 2010, 78(6): 526-528.

• Pt/SnO2/CB
• Ethanol Oxidation Reaction
• Nanoparticle
• DEFC

Double nanoparticles of Pt and SnO2 with different Pt/Sn ratios highly dispersed on Ketjen Black (denoted as Pt/SnO2/CB) were prepared by the modified Bonnemann method. The average size and standard deviation of the Pt and SnO2 nanoparticles were 3.1 +/- 05 nm and 2.5 +/- 0.3 nm for the Pt/SnO2(3 : 1)/CB, 3.0 +/- 05 nm and 2.6 +/- 0.3 nm for Pt/SnO2(1 : 1)/CB, 2.8 +/- 0.3 nm and 2.5 +/- 03 nm for Pt/SnO2(1 : 3)/CB. The Pt/SnO2(3 : 1)/CB showed the highest specific activity and lowest overpotential for ethanol oxidation reaction (EOR) in the present study, and was superior to a Pt/CB electrode. These were ascribable to the synergistic effect of Pt and SnO2 nanoparticles.

• 出版日期2010-6