Journal
JOURNAL OF CATALYSIS
Volume 331, Issue -, Pages 57-62Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2015.08.016
Keywords
Facet; Water dissociation; ZnO; Ketonization; Ethanol
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Funding
- U.S. Department of Energy [DE-FG02-05ER15712]
- Department of Energy's Office of Biological and Environmental Research
- U.S. Department of Energy (DOE) [DE-FG02-05ER15712] Funding Source: U.S. Department of Energy (DOE)
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ZnO nanoparticles with differing dominant facets were prepared and characterized by a complimentary of techniques such as X-ray diffraction, electron microscopy, temperature programmed desorption of H2O, and Fourier transform infrared spectroscopy analysis of adsorbed D2O. For the first time, water interaction/activation is compared on ZnO polar and non-polar facets. We report that non-polar facets exhibit high activity in water activation, which favors reactions such as ketonization and steam reforming in which dissociated water is involved. The distinct water dissociation on ZnO non-polar facets could be related to its facile formation of oxygen vacancies under realistic reaction conditions. (C) 2015 Elsevier Inc. All rights reserved.
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