MoOx,非高贵的第二等的催化剂而不是高贵金属 Ru,在碳 nanotubes (CNT ) 上被驱散然后主要催化剂磅是由潜在步的方法的 MoOx/CNT/graphite 电极上的 electrodeposited。使用的 CNT 被化学蒸汽免职在石墨磁盘上直接种。Pt-MoOx/CNT/graphite 电极被扫描电子显微镜学和精力描绘散 X 光检查光谱学。electrocatalytic 性质和为乙醇氧化的 Pt-MoOx/CNT/graphite 电极的长期的周期的稳定性被周期的 voltammetry 在 1.0 mol/L CH3CH2OH+0.1 mol/L H2SO4 调查了。在另一方面,在 Pt-MoOx/CNT/graphite 电极的特定的活动和乙醇氧化的激活精力的 MoOx 的装载的团的效果被调查。Pt-MoOx/CNT/graphite 电极显示出好长期的周期的稳定性。在在 0.69 V 附近的氧化山峰的山峰电流密度的 82% 价值(对 SCE ) 在 500 个周期以后留下,它分别地比有 55% 和 72% 的相应价值的 Pt/CNT/graphite 和 Pt-Ru/CNT/graphite 电极的那些高。
MoOx, a non-noble secondary catalyst instead of noble metal Ru, was dispersed on carbon nanotubes (CNT) and then the primary catalyst Pt was electrodeposited on MoOx/CNT/graphite electrode by potential-step method. CNT used was grown directly on graphite disk by chemical vapor deposition. The Pt-MoOx/CNT/graphite electrode was characterized by scanning electron microscopy and energy dispersive X-ray spectroscopy. The electrocatalytic property and the long-term cyclic stability of Pt-MoOx/CNT/graphite electrode for ethanol oxidation have been investigated in 1.0 mol/L CH3CH2OH+0.1 mol/L H2SO4 by cyclic voltammetry. On the other hand, the effect of the loading mass of MoOx on specific activity of Pt-MoOx/CNT/graphite electrode and the activation energy of ethanol oxidation were investigated. The Pt-MoOx/CNT/graphite electrode shows good long-term cyclic stability. 82% value of peak current density at the oxidation peak around 0.69 V (vs. SCE) remains after 500 cycles, which is higher than those of Pt/CNT/graphite and Pt-Ru/CNT/graphite electrodes with the corresponding values of 55% and 72%, respectively.