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- W2003809737 abstract "Abstract The simultaneous admission of nitrous oxide and the vapor of a primary or secondary alcohol at room temperature to ZnO or TiO2 (rutile) samples, whose surfaces were prereduced by thermally outgassing in vacuo for 16 hr at 673 K, produced a doubling or trebling of the yield of nitrogen product relative to that observed with N2O alone. The effect is attributed to dissociative electron attachment to N2O, yielding O− intermediates at the interface which then abstracted an α-hydrogen from primary or secondary alcohol and produced a second surface intermediate capable of reacting with other N2O molecules. This sequence of events did not occur with tertiary alcohol at the nonilluminated metal oxide surfaces but 2-methyl-propan-2-ol was observed to undergo continuing photocatalyzed dehydration at ZnO or TiO2 surfaces excited by photons of λ = 340 → 640 nm. Continuing photodehydration was not observed with primary or secondary alcohols and the difference is explained in part by the greater stability of the cation formed from the tertiary alcohol through localization of a photogenerated hole and in part by the availability of another channel for photooxidation of the primary and secondary alcohols, viz. dehydrogenation. Photodehydrogenated products were observed from primary and secondary alcohols but in limited yields which were comparable to attainable levels of alcohol adsorption. The limitation on the extent of photodehydrogenation in the absence of an oxidizing gas would be understood on the basis that each surface O− site was rendered inactive following one hole-capture-plus-dehydrogenation event." @default.
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- W2003809737 title "Reactions involving electron transfer at semiconducting surfaces VII. Interactions of aliphatic alcohols and nitrous oxide, on reduced ZnO and TiO2 surfaces" @default.
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- W2003809737 doi "https://doi.org/10.1016/0021-9517(78)90008-8" @default.
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