absorbate

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.

研究表明： 在载体α-氧化铝和银催化剂表面都存在L中心，碱性附能附L位， 载体α-氧化铝负载银之后，性中心浓度有所降低，在银催化剂内加入一定量的助催化剂铯后，性中心浓度又有了明显下降。