화학공학소재연구정보센터
Journal of Physical Chemistry B, Vol.107, No.48, 13419-13424, 2003
Direct formation of acetaldehyde from ethane using carbon dioxide as a novel oxidant over oxidized diamond-supported catalysts
We have developed a novel method of producing acetaldehyde directly from ethane using carbon dioxide. The selective oxidation of C2H6 using CO2 as an oxidant was studied over various metal oxide-loaded catalysts. Among metal oxides, vanadium oxide afforded the highest activity toward CH3CHO when it was loaded on the oxidized diamond. With a V2O5 loading level of 3 wt % on oxidized diamond, 140 mumol/h.g of catalyst of CH3CHO was obtained at 923 K with C2H6 and CO2 (1:1 mixed gas) in SV of 18 000 mL/h.g of catalyst. C2H4 and HCHO were obtained as byproducts. In the absence of CO2, no aldehydes were obtained, indicating that oxygen was supplied from CO2 through the vanadium oxide surface.