The chemistry of Lewis acid-base pairs on (mixed) oxide surfaces plays important roles in many catalytic reactions such as aldolization. Fundamental understanding of the Lewis acid-base pairs have long been studied by both theory 1 and experiments. 2-5 For instance, aldolization is an important reaction for C-C bond formation, and studies reveal that the nature (i.e., density and strength) of Lewis acid-base pairs has significant effects on the reaction pathway and product distributions. 4,5 We recently found that Zn could be used to modify the surface Lewis acid-base properties on ZrO2. As a result, highly selective acetone aldolization and self-deoxygenation cascade reactions can be realized to produce isobutene. By combining theoretical calculations and experimental studies, herein, we present fundamental understanding of the Lewis acid-base pairs for the cascade acetone reactions on the Zn doped ZrO2 catalysts. (1) Metiu, H.; Chretien, S.; Hu, Z.; Li, B.; Sun, X. Journal of Physical Chemistry C 2012, 116, 10439-10450. (2) Iglesia, E.; Barton, D. G.; Biscardi, J. A.; Gines, M. J. L.; Soled, S. L. Catalysis Today 1997, 38, 339-360. (3) Snell, R. W.; Combs, E.; Shanks, B. H. Top. Catal. 2010, 53, 1248-1253. (4) Leon, M.; Faba, L.; Diaz, E.; Bennici, S.; Vega, A.; Ordonez, S.; Auroux, A. Appl. Catal. B-Environ. 2014, 147, 796-804. (5) Krivtsov, I.; Faba, L.; Diaz, E.; Ordonez, S.; Aydin, V.; Khainakov, S.; Garcia, J. R. Appl. Catal. A-Gen. 2014, 477, 26-33.

Fundamental understanding of ZnO doped ZrO2 surface for C-C bond formation and deoxygenation of biomass derived-oxygenates

251st National Meeting (2016)

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