Tunning valence state of cobalt centers in Cu/Co-CoO_1-x for significantly boosting water-gas shift reaction.

ABSTRACT: Dual active sites with synergistic valence state regulation under oxidizing and reducing conditions are essential for catalytic reactions with step-wise mechanisms to modulate the complex adsorption sites of reactant molecules on the surfaces of heterogeneous catalysts with maximized catalytic performances, but it has been rarely explored. In this work, uniformly dispersed CuCo alloy and CoO nanosheet composite catalysts with dual active sites are constructed, which shows huge boost in activity for catalyzing water-gas shift reaction (WGSR), with a record high reaction rate reaching 204.2 μmol_CO g_cat.^-1 s^-1 at 300 °C for Cu₁Co₉O_x amongst the reported Cu-based and Co-based catalysts. A synergistic mechanism is prop

SUBMITTER: Li XC 

PROVIDER: S-EPMC11739592 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature