Highly efficient CO2 bubble removal on carbon nanotube supported nanocatalysts for direct methanol fuel cell |
| |
| Authors: | Soon-Lin Chen Chun-Ting Lin Fan-Gang Tseng |
| |
| Affiliation: | a Department of Engineering and System Science, National Tsing Hua University, Hsinchu, 30043, Taiwan
b Division of Mechanics, Research Center for Applied Sciences, Academia Sinica, Taiwan |
| |
| Abstract: | In this paper, we investigate the CO2 microbubble removal on carbon nanotube (CNT)-supported Pt catalysts in direct methanol fuel cells (DMFCs). The experiments involve the incorporation of near-catalyst-layer bubble visualization and simultaneous electrochemical measurements in a DMFC anodic half cell system, in which CH3OH electro-oxidation generate carbon dioxide (CO2) microbubbles. We observe rapid removal of smaller CO2 bubble sizes and less bubble accumulation on a Pt-coated CNT/CC (Pt/CNT/CC, CC means carbon cloth) electrode. The improved half cell performances of the high CO2 microbubble removal efficiency on the CNT-modified electrode (Pt/CNT/CC) were 34% and 32% higher than on Pt/CC and Pt/CP electrodes, respectively. |
| |
| Keywords: | Direct methanol fuel cell Carbon nanotubes Carbon dioxide microbubbles |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
