Carbon dioxide turned into methanol by exploiting daily temperature changes

A new catalyst harnesses the energy associated with daily temperature changes, and uses it to convert carbon dioxide into methanol. The technique could one day be used to supply sustainable fuel.

Researchers in China have developed a catalyst that generates an electric current in response to temperature variation and then uses this to drive the conversion of carbon dioxide to methanol. The pyroelectric process relies on bismuth tungstate nanoplates that harvest heat energy during temperature changes – potentially offering a way to power fuel production using only the natural thermal changes during day and night cycles.