Mechanistic study of ethanol oxidation on Pd-NiO/C electrocatalyst

作者：Hu, Fengping; Chen, Cuilian; Wang, Zhengyou; Wei, Guoying; Shen, Pei Kang^*

来源：Electrochimica Acta, 2006, 52(3): 1087-1091.

DOI：10.1016/j.electacta.2006.07.008

• electrocatalyst
• ethanol oxidation
• fuel cell
• oxide
• alkaline

NiO supported Pt/C and Pd/C electrocatalysts have been prepared by IMH method. The ethanol oxidation on Pd-NiO/C electrocatalyst is tested in an ethanol solution with or without the presence of CO. The results show that the oxidation of CO on Pd-NiO/C electrocatalyst needs higher overpotential than that on Pt-NiO/C electrocatalyst. However, the peak area of the CO oxidation on the Pd-NiO/C electrocatalyst is much lower and the influence of CO on the performance of ethanol oxidation is small. The higher activity and less poisoning of the Pd-NiO/C electrocatalyst than that of the Pt-NiO/C electrocatalyst for ethanol oxidation is possibly due to the lower CO coverage on the Pd-NiO/C electrocatalyst that leads to the favorable adsorption of ethanol instead of CO and consequently the less poisoning effect.

• 出版日期2006-11-12
• 单位中山大学; 中国计量大学