H Power Corporation

Chunzhi He

Arthur Kaufman

Zhigang Qi

A sensing device is featured that electrochemically measures methanol concentration. The sensing device has a flexible composite of layered materials wrapped about a flexible tube having aperture contact with a methanol flow stream. The layered materials sequentially wrapped on the tube are: a polytetrafluoroethylene insulation sheet; an electrically conducting mesh representing the anode current collector; a carbon-based material representing an anode diffusion medium; a catalyst-coated membrane with both sides coated by catalysts such as Pt/Ru and Pt; a carbon-based material serving as the cathode diffusion medium; and an electrically conducting mesh representing the cathode current collector.

Sensor for electro-active materials

A method is described for improving the performance of fuel cells such as H /air PEM fuel cells and direct methanol fuel cells. It has been discovered that H evolution can significantly improve the performance of air cathodes and direct methanol fuel cell anodes. The improvement of air cathodes applies to both H /air PEM fuel cells and direct methanol fuel cells.

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Westfield, NJ, United States of America

Chunzhi He