Hydrogenation of unsaturated hydrocarbons over alkali-metal-modified zinc oxide

Piotr Winiarek , Jacek Kijeński

Abstract

Superbasic catalytic systems have been obtained by evaporation of alkali metals onto a ZnO surface. The catalysts were characterized by IR and EPR spectroscopy. Similar to the case of alkali-metal-doped oxide insulators, surface colour centres Fs+, formed by the trapping of an alkali-atom electron in an oxide anionic vacancy, were identified as the source of the extremely strong one-electron donor properties. The studied catalysts exhibited a much higher activity in the hydrogenation of alkenes than the starting ZnO. A mechanism for propene hydrogenation over the superbasic alkali metal/ZnO system was proposed.
Author Piotr Winiarek ZKChM
Piotr Winiarek,,
- Department Of Catalysis And Organometallic Chemistry
, Jacek Kijeński ICh
Jacek Kijeński,,
- The Institute of Chemistry
Journal seriesJ. Chem. Soc., Faraday Trans.
Issue year1998
Vol94
Pages167-172
DOIDOI:10.1039/A704988I
URL http://dx.doi.org/10.1039/A704988I
Languageen angielski
Score (nominal)0
Citation count*12 (2016-05-30)
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