The synthesis of hydrocarbons and oxygenates during CO hydrogenation on CoCuZnO catalysts: Analysis at the site level using multiproduct SSITKA

► Cu with Co acts to decrease activity for all products, probably due to the blockage of the Co surface. ► ZnO with Co acts as a support to keep Co highly dispersed and may increase C2+ oxygenate site activities. ► The combination of Cu and ZnO with Co appears to maintain oxygenate but decreases hydrocarbon formation ability. ► Co/Al2O3 has a higher oxygenate rate equivalent to CoCuZnO, but overlooked because of high hydrocarbon rate.