Si-doped Al2O3 nanosheet supported Pd for catalytic combustion of propane: effects of Si doping on morphology, thermal stability, and water resistance

Catalytic combustion of propane as typical light alkanes was important for the purification industrial VOCs and automobile hydrocarbon emissions. Si-doped Al2O3 nanosheet synthesized by a hydrothermal method, effects Si content on morphology thermal stability were investigated. The doping SiO2 could tune thickness nanosheets significantly improve its stability, ? phase still maintained, specific surface area high 56.3 m2 g?1 after calcination at 1200 °C. And then used support Pd catalysts (Pd/Si-Al2O3 nanosheets) catalytic propane, especially Pd/3.6Si-Al2O3 nanosheets, which presented activity, resistance to sintering H2O due promotion stabilization (dispersion, isolation, strong interaction) PdOx species.