Performance of PtPd electrocatalysts in direct methanol fuel cell.
PtPd nanoparticles on carbon black were prepared to investigate the role of Pd in the anode and cathode of a direct methanol fuel cell (DMFC). The PtPd catalysts in the anode showed a significantly lower performance than the PtRu catalyst. However, the cell performances of these catalysts in the cathode were comparable to that of the Pt catalyst. From cyclic voltammetry, it was observed that the Pd with the Pt catalyst lowered the peak potential and increased the coulombic charge for oxide reduction on the surface of the catalyst. Also, the Pd catalyst without Pt showed relatively high activity for oxygen reduction reaction.
Kim
In-Tae
IT
Department of Nano and Chemical Engineering, Kunsan National University, Jeonbuk 573-701, Korea.
Choi
Mahnsoo
M
An
Jung-Chul
JC
Lee
Hong-Ki
HK
Shim
Joongpyo
J