文摘
Dealkylation of alkylnaphthalene was found to proceed on a silica monolayer catalyst loaded on alumina with high activity and selectivity (without cracking of alkyl part). The activity was generated by deposition of silica with generating Brønsted acidity, and both the activity and Brønsted acid amount showed the maximum at ca. 10 Si nm‐2 where the monolayer covered the surface. The activity of silica monolayer was observed even after calcination at 973–1173 K, while amorphous silica-alumina lost more quickly the activity.