Chemistry Breakthrough Converts Waste Heat into Electricity

In a breakthrough which could be used by chemical producers among others, researchers at Northwestern University (Chicago, IL) have placed nanocrystals of rock salt into lead telluride, creating a material that can harness electricity from heat-generating items such as vehicle exhaust systems and industrial processing equipment. The substance also can be used to generate electricity from sunlight.   The material is expected to convert 14% of heat waste to electricity, a scientific first, the researchers say. Chemists, physicists and material scientists at...

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