The results are showed as follows.Lewis(Louis) acid sites exist on the surface of α-Alumina support and silver catalyst.Pyridine, the basic absorbate, can be adsorbed on its Lewis (Louis)acid sites.
明: 在载体α-氧铝和银面都存在L酸中心,碱性附质吡啶能附于其L酸位, 载体α-氧铝负载银之后,其酸性中心浓度有所降低,在银内加入一定量的助铯后,其酸性中心浓度又有了明显下降。