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Diamonds a green best friend

Here’s a gem of an idea. Diamonds could be used to put an environment­ally friendly fuel cell in every car

Scientists have discovered they can use diamonds to cool fuel cells – a big boost for likes of Honda FCX

30th July 2007

The Honda FCX and other prototypes prove the hydrogen-powered technology is feasible. But mass pro­duction can’t begin until manufacturers have found a way to stop the new power supplies from heating up to a scorching 1,000 degrees Celsius. Now, Univ­ersity of California scientists have made a cool discovery.

They added microscopic grains of artificial diamond to a fuel cell, and found the glittering material was so efficient at controlling heat levels that the electricity generator barely got warm. It even stayed cooler than a conventional engine.

The team has protected its spark­ling invention with a patent. The big question is, how much will it cost to insure a car filled with diamonds?

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