Preparation and characterization of nanosized solid superacid SO_4~(2-)/ZrO_2 and S_2O_8~(2-)/ZrO_2 for Bamberger rearrangement

摘要

Catalytic hydrogenation of nitrobenzene is a widely used synthesis route for p-aminophenol (PAP). For the high causticity of sulfuric acid, exploring a novel solid acid catalyst is one of the aims of this route. In this paper, nanosized SO)4~(2-)/ZrO_2(SZ) and S_2O_8~(2-)/ZrO_2 (PSZ) were prepared, and the structure, acidity and catalytic activity for Bamberger rearrangement were investigated.