| 초록 |
Highly ordered mesoporous indium oxide (m-In2O3) was synthesized by template method. Template method used wet impregnation by putting In(NO3)3 into KIT-6 support. The as-prepared m-In2O3 were dry impregnated with Palladium (Pd) promoter with 1~9wt%. The different catalytic activity for CO2 to methanol was tested, and the best activity was 7wt% which means optimal ratio of Pd to m-In2O3. The 7wt% Pd to In2O3 were compared with not only different ratio of Pd to In2O3, but also m-In2O3 and 7wt% Pd to SiO2 which was no activity of CO2 hydrogenation to methanol. To reveal the reason of the optimum activity of 7wt% Pd to In¬2O3, TEM, XRD, XRF, N2 sorption, TPR analyses proceeded. |
