纳米金催化剂Au/Al2O3的制备及其催化活性研究

On the Preparation and Catalytic Activity of Nano-Gold Catalyst Au/Al2O3

用吸附色谱柱法制备了Au/Al2O3催化剂,分析了金粒径大小、酸度、液固比、载体等因素对纳米金催化剂Au/Al2O3活性的影响.结果表明：当粒径为2～3 nm,pH为9,液固比为4 1时,催化剂Au/Al2O3的活性最高.

Nano-gold catalyst was prepared by using the method of absorption column chromatography.The effect of grain size of nano-gold,pH,liquid-to-solid ratio and vector on catalytic activity were analyzed.The results showed that it had the best catalytic activity when the grain size of nano-gold catalyst Au/Al2O3 was 2～3nm,pH was 9,and the liquid-to-solid ratio was 41.