초록 |
Bicontinous SiO2/Cu/TiO2 heterogeneous catalyst was prepared by nanocatig method using nanoporous hybrid membrane (NHF) as polymeric template. The core shell like membrane gives porous coating layer after pyrolysis. The silica coating layer increase s thermal stability of catalyst and TiO2 support, preventing deactivation in harsh reaction condition at high temperature. In addition, silica coating on catalyst modifies electronic structure of catalyst and leads to different selectivity during catalytic reactions. In this work, the superior thermal stability and electronic structure are studied in detail. |