| 초록 |
The oxidation reaction is mainly performed using a noble metal catalyst, and there is a problem in that the catalytic activity is decreased due to the sintering of metals and coke deposition during the catalytic reaction. Various studies have been attempted to increase catalytic stability and performances by using the interaction between catalytic components. Strong metal-support interactions (SMSIs) are a representative example that can change the surface characteristics of the main metal nanoparticles and the supports so that the electronic properties of the catalyst surface can be changed. Recently, we reported Au nanoparticles supported on CeO2–Mg(OH)2 exhibited SMSIs effects for reactant conversion and selective conversion of intermediate to a desirable alkyl ester. Following the published work, we carried out in-depth studies of the SMSIs effects by controlling the composition of CeO2 and Mg(OH)2, and the crystallinities of the CeO2–Mg(OH)2. The several characterizations revealed that the control of these two synthetic parameters changed the electronic properties of the catalytic behavior during direct oxidative esterification reactions. |
