Distinct water activation on polar/non-polar facets of ZnO nanoparticles

Journal Article · Sun Nov 01 00:00:00 EDT 2015 · Journal of Catalysis

DOI:https://doi.org/10.1016/j.jcat.2015.08.016· OSTI ID:1267597

Zhang, He; Sun, Junming; Liu, Changjun; Wang, Yong

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.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
• Sponsoring Organization: USDOE Office of Science (SC), Biological and Environmental Research (BER)
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1267597
• Report Number(s): PNNL-SA-115390; 35599; KC0302010
• Journal Information: Journal of Catalysis, Vol. 331; ISSN 0021-9517
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

Environmental Molecular Sciences Laboratory