Wednesday, September 13, 2006

New type of hydrogen fuel cell powers up

Within a few years, laptops and other energy-guzzling portable devices could run on long-lasting, easily recharged fuel cells based on a safe and practical new way of storing and releasing hydrogen.

Chemist Don Gervasio and colleague Sonja Tasic, both at Arizona State University in the US, set out to develop a fuel cell that would generate more electricity for its weight than the best batteries, and would also work at room temperature.

Gervasio's solution was to use the alkaline compound borohydride. A 30% solution of borohydride in water actually contains one-third more hydrogen than the same volume of liquid hydrogen.

technorati tags: , , , ,