화학공학소재연구정보센터
Catalysis Today, Vol.157, No.1-4, 286-290, 2010
Oxidation of alkane using Pt/Eu2O3/TiO2/SiO2 catalyst with O-2 and H-2 in acetic acid under mild conditions
A new solid catalyst of Pt/Eu2O3/TiO2/SiO2 for oxidation of alkane was developed Oxidation of adamantane using the multi-components supported catalyst with O-2 and H-2 was studied in acetic acid at 313 K Several multi-components supported catalysts were prepared and tested the oxidation activity It is found that loading order of Eu2O3 TiO2 and Pt on the SiO2 support strongly affected the oxidation catalysis The active catalysts model was proposed from TEM-EDS analysis that very small Pt particles well dispersed on amorphous Eu2O3 and TiO2 on the SiO2 support Eu and Ti oxides concertedly activated O-2 with electrons supplied from H-2 on Pt and active oxygen species efficiently oxidized adamantane and other alkanes to oxygenated compounds Active oxygen species could not be identified but its reactivity was studied It showed radical nature for oxidation of alkanes and a cleavage of C-H bond was the rate-determining step during the oxidation (C) 2010 Elsevier B V All rights reserved