China's 'artificial photosynthesis' method converts CO2 into petrol

Chinese scientists from the Chinese Academy of Sciences and the Hong Kong University of Science and Technology have developed an innovative artificial photosynthesis method that converts carbon dioxide (CO2) and water into valuable chemicals, including key petrol components, using sunlight. Their breakthrough involves a specially engineered silver-modified tungsten trioxide material capable of storing electrical energy generated by light exposure and releasing it as needed. This charge storage mechanism, inspired by natural photosynthesis, enhances the efficiency of solar-driven chemical reactions that reduce CO2 into useful intermediates like carbon monoxide, which can subsequently be transformed into liquid hydrocarbons and synthetic fuels compatible with existing fuel infrastructure. Published in Nature Communications, the research highlights a bioinspired charge reservoir strategy that addresses the challenge of coupling complex reactions such as water oxidation and CO2 reduction without relying on sacrificial agents. The system’s universal applicability with various catalysts offers a promising pathway for sustainable solar fuel production, potentially benefiting hard-to-electrify sectors like aviation and shipping. This approach not only advances efforts to