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A new study look into the quest for sustainable fuel, and how solar energy can be transformed into exactly this. The new procedure uses the sun’s thermal energy to convert carbon dioxide and water directly into synthetic fuel.
“This allows solar energy to be stored in the form of chemical bonds,” explains Ivo Alxneit, chemist at the PSI’s Solar Technology Laboratory. “It’s easier than storing electricity.” The new approach is based on a similar principle to that used by solar power plants.” Alxneit and his colleagues use heat in order to trigger certain chemical processes that only take place at very high temperatures above 1000 °C. Advances in solar technology will soon enable such temperatures to be achieved using sunlight..

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