The kinetic basis of bifunctional OX–ZEO catalysts for syngas conversion to light olefins (opens in new tab)

Despite considerable progress in oxide–zeolite (OX–ZEO) bifunctional catalysts for ketene-mediated syngas conversion, the origin of inter-component synergy and its dependence on spatial proximity remain unclear. Here we develop a diffusion-bridged, two-component microkinetic model that incorporates the entire reaction network over the ZnCrOx/mordenite (MOR) catalyst. The model captures the coupled reaction–diffusion dynamics and quantitatively elucidates the synergetic mechanism underlying se...