This paper reports the design, fabrication and testing of a silicon-based air-breathing μDMFC featured by the unique cathode structure and utilization of MEMS technology. The considerations leading to the novel cathode design is presented and the detailed fabrication process is described. The experimental results show the prototype generated an open-circuit potential of 0.47V and a power density of 2.31mW/cm 2 when fed with 1M methanol solution at room temperature. Without using cathode gas pump, this performance was comparable to that of our pervious active one and demonstrated the feasibility of this new configuration. Moreover, the preliminary investigations on the characteristics of the μDMFC are also discussed.
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