期刊
JOURNAL OF POWER SOURCES
卷 195, 期 2, 页码 461-465出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2009.08.014
关键词
Formic acid electrooxidation; Formic acid fuel cells; Pd-Co alloy; Carbon nanotubes
资金
- Mexican Council for Science and Technology (CONACyT) [61067]
- Facultad de Ingenieria UAQ-FIFI
Pd-Co and Pd catalysts were prepared by the impregnation synthesis method at low temperature on multi-walled carbon nanotubes (MWCNTs). The nanotubes were synthesized by spray pyrolysis technique. Both catalysts were obtained with high homogeneous distribution and particle size around 4 nm. The morphology, composition and electrocatalytic properties were investigated by transmission electron microscopy, scanning electron microscopy-energy dispersive X-ray analysis, X-ray diffraction and electrochemical measurements, respectively. The electrocatalytic activity of Pd and PdCo/MWCNTs catalysts was investigated in terms of formic acid electrooxidation at low concentration in H2SO4 aqueous solution. The results obtained from voltamperometric studies showed that the current density achieved with the PdCo/MWCNTs catalyst is 3 times higher than that reached with the Pd/MWCNTs catalyst. The onset potential for formic acid electrooxidation on PdCo/MWCNTs electrocatalyst showed a negative shift ca. 50mV compared with Pd/MWCNTs. (C) 2009 Elsevier B. V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据