Miniature fuel cell with conductive silicon electrodes
説明
We report on a direct methanol fuel cell (DMFC) with conductive silicon electrodes. In our design, the electrodes are made of silicon instead of carbon. We fabricated a porous structure at the bottom of the channels using the DRIE process. Pt catalyst was electrodeposited onto the surface of the electrodes. A Nafion 115 membrane was sandwiched between two 280-/spl mu/m-thick electrodes with a microporous structure 30 /spl mu/m thick. Open circuit voltage of 150 mV was observed with 1 M methanol feed. Maximum power density of 0.016 mW/cm was achieved. Since the electrode and the channels are fabricated in a single wafer, it is possible to decrease the total thickness of the fuel cell by a using thinner wafer.
収録刊行物
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- The 13th International Conference on Solid-State Sensors, Actuators and Microsystems, 2005. Digest of Technical Papers. TRANSDUCERS '05.
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The 13th International Conference on Solid-State Sensors, Actuators and Microsystems, 2005. Digest of Technical Papers. TRANSDUCERS '05. 2 1296-1299, 2005-08-24
IEEE