Boosting gas mileage by turning engine heat into electricity

Automakers are looking for ways to improve their fleets' average fuel efficiency, and scientists may have a new way to help them. In a report in the journal ACS Applied Materials & Interfaces, one team reports the development of a material that could convert engine heat that's otherwise wasted into electrical energy to help keep a car running—and reduce the need for fuels. It could also have applications in aerospace, manufacturing and other sectors.

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