Synthesis of titanium-aluminum binary oxides stabilized by polyvinylpyrrolidone and their application for catalytic nitration of arenes

摘要: Abstract A series of titanium-aluminum binary oxides are prepared through co-precipitation metal salts with polyvinylpyrrolidone (PVP) in alkaline solution, along dehydration. Most synthetic composed micro- or nano-sized blocks, while one them shows an interesting two-dimensional morphology. Furthermore, loading aluminum into would increase product porosity compared the non-loaded case, addition PVP influences on building micropores oxide. In catalysis, usually show high activities for nitration various arenes. The key factors affecting catalytic outputs carefully discussed, and matching relation between shape substrate pore distribution catalyst may affect efficiency too. Moreover, oxide featuring more durable recycling behavior than non-doped one. On other hand, reactions naphthalene benzene halides better stereoselectivities those alkylbenzenes. general, this study contribute to progress new materials.