Fabrication Method‐Engineered Cu–ZnO/SiO ₂ Catalysts with Highly Dispersed Metal Nanoparticles toward Efficient Utilization of Methanol as a Hydrogen Carrier

CO2 hydrogenation to methanol and steam reforming (MSR) are regarded as two critical reactions for transportation on-site production of hydrogen, but it still lacks efficient catalysts both reactions. Herein, the CuZnSi-ammonia evaporation method (AEM) catalyst prepared by AEM with extremely low metal loading highly dispersed Cu/Zn species, in particular, high concentration Cu+ exhibits an optimum space-time yield (1888.3 g kgCu−1 h−1) exceptional specific activity 282.6 mol CO 2 h−1, which is higher than a majority reported catalysts. Furthermore, CuZnSi-AEM also active MSR reaction selectivity. The results reveal that morphology, exposed synergistic Cu–ZnOx interaction key guiding factors successful utilization hydrogen carrier.