Effect of conditioning method on direct methanol fuel cell performance |
| |
Authors: | Mitsuhiro Inoue |
| |
Affiliation: | Department of Materials Science and Technology, Faculty of Engineering, Nagaoka University of Technology, Kamitomioka 1603-1, Nagaoka, Niigata 940-2188, Japan |
| |
Abstract: | We investigated the effect of the conditioning methods on improving the direct methanol fuel cell (DMFC) performance. The DMFC performance after the conditioning was measured using a newly developed single cell having an Ag/Ag2SO4 reference electrode, which is not influenced by methanol. As a result, we succeeded in developing an original two-step conditioning method in which the conditioning by fueling H2 gas is conducted prior to a conventional DMFC conditioning. The anode and cathode characteristics after the two-step conditioning were measured with respect to a reference electrode. Based on the obtained i-E curves, the two-step conditioning is found to improve the methanol oxidation performance at the anode and also suppress the decline of the O2 reduction performance at the cathode. The high DMFC performance based on the two-step conditioning is well explained by the anode and cathode characteristics. |
| |
Keywords: | Direct methanol fuel cell Conditioning method Single cell having a reference electrode Power generation performance Polarization curve |
本文献已被 ScienceDirect 等数据库收录! |
|