Advances in integrated catalysts for CO2 thermal hydrogenation to multicarbon products

Massive anthropogenic CO2 emissions have caused a series of inevitable environmental and social issues. CO2 thermal hydrogenation to multicarbon products, as a promising technology, not only alleviates such dilemmas but also provides high-value-added chemicals and energy fuels. Efficient integrated catalysts are pivotal to improving CO2 conversion and product selectivity, which have aroused extensive exploration and study in scientific and industrial communities. Understanding the synergistic mechanism of chemical compositions and the effect of proximity is significant for excellent catalytic performance. In this review, we present how the interactions of different active sites affect catalytic performance by emphasizing the role of their proximity and integration methods within these catalysts for four primary types of multicarbon products: light olefins, liquid fuel, aromatics, and higher oxygenates.