fig1

Figure 1. (A) The site-specific division of catalytic labor between BAS and LAS in zeolite-catalyzed alcohol dehydration; (B and C) selected experimental evidence identifying surface species associated with BAS-mediated and LAS-mediated pathways; (D) calculated reaction energy profiles comparing thermodynamic stabilization and kinetic barriers on BAS and LAS. This figure is reproduced with permission from^[5], licensed under CC BY-NC-ND 4.0. BAS: Brønsted acid sites; LAS: Lewis acid sites; SES-BAS: surface ethoxy species on Brønsted acid sites; CSE-LAS: chemisorbed ethanol on Lewis acid sites.