Effects of Nanoimprint Patterns on Performance of Passive Mems-based Direct Methanol Fuel Cell

This paper presents our recent effort on application of nanoimprint technology into passive MEMS-based direct methanol fuel cell (DMFC) for chip-scale power-embedded system. We fabricated and characterized five kinds of micro DMFC with different nanoimprint pattern and catalyst layers. It was found that the measured fuel cell performance varied with the nanoimprinted patterns because they affected the continuity of the catalyst layer. The performance was the compromising between the nanoimprint pattern and the catalyst layer. This was mainly correlated to that the catalyst layer functioned as the current collector in the prepared micro DMFCs.