FT-IR Study of Propylene Oxide Adsorption on Metal Oxides

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Abstract:

The adsorption of propylene oxide (PO) onto MgO, ZnO and Al2O3 was investigated by using in situ-IR measurements. Detailed mechanisms for PO adsorption onto these metal oxides are proposed. It was found that the PO epoxide ring exhibits two opening tendencies, depending on the acid-base properties of the metal oxide. PO adsorbed onto MgO is preferentially opened at the O-C (1) bond. The epoxide ring provides two ways to open, at the O-C (1) or the O-C(2) bond on Al2O3. PO adsorbed onto ZnO showed no chemical adsorption on its surface.

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Advanced Materials Research (Volumes 781-784)

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169-173

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September 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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