CO2hydrogenation is key for the storage of excess renewable electricity available in the form of electrolytically derived H2. Storing electrical energy in chemical bonds, thereby converting CO2into useful chemical building blocks, has clear advantages given the existence of current chemicals production processes. Large-scale CO2reduction with renewable H2remains a challenge because the current generation of solid catalysts are not active, selective and stable enough.
In this project, we will build further on our recent activities for catalytic CO2reduction into CH4by nickel, but the attention will be on designing new bifunctional catalysts, which are able to perform C-C coupling from initially activated CO2. This will be done by combining supported metal catalysts, able to activate CO2into either CO, CH4or CH3OH, followed by their subsequent conversion into higher hydrocarbons by adding functionalized zeolites.
The research will focus on finding the right combination of CO2-activating metal nanoparticles (in terms of location, particle size, alloying, and promotors) and zeolite-based supports (in which acid strength and distribution will be controlled). Inspiration for the latter system will be derived from known methane dehydroaromatization, methanol-to-hydrocarbons and Fischer-Tropsch synthesis catalysts. Mechanistic understanding will be gathered by operando spectroscopy and microscopy.
- Renewable energy storage
- CO2 hydrogenation
- Zeolite-based chemistry
- Mechanistic understanding