Interfacial compatibility critically controls Ru/TiO2 metal-support interaction modes in CO2 hydrogenation

Abstract Supports can widely affect or even dominate the catalytic activity, selectivity, and stability of metal nanoparticles through various metal-support interactions (MSIs). However, underlying principles have not been fully understood yet, because MSIs are influenced by the composition, size, and facet of both metals and supports. Using Ru/TiO 2 supported on rutile and anatase as model catalysts, we demonstrate that metal-support interfacial compatibility can critically control MSI modes and catalytic performances in CO 2 hydrogenation. Annealing Ru/rutile-TiO 2 in air can enhance CO 2 conversion to methane resulting from enhanced interfacial coupling driven by matched lattices of RuO x with rutile-TiO 2…

• NN
  National Natural Science Foundation of China

  Award: 21801012
• NK
  National Key Research and Development Program of China

  Award: 2018YFA0702002