Abstract:

γ-Al₂O₃ is widely used as catalyst support because of the adjustability of its pore structure and surface acidity. The pore structure and surface properties of catalyst depend on γ-Al₂O₃ support，so high performance support would be found for specific catalytic reaction by controlling the properties of γ-Al₂O₃ support. The research progress in the adjustability of pore structure，surface acidity and hydrothermal stability of γ-Al₂O₃ support is reviewed，including controlling the preparation process of γ-Al₂O₃ support and its treatment after molding. Finally，research focus and development trend of γ-Al₂O₃ support are also suggested.

摘要：

由于γ-Al₂O₃载体的孔结构、表面酸性等性质的可调性，γ-Al₂O₃载体被广泛应用于催化剂载体领域。催化剂的孔结构、表面性质均取决于γ-Al₂O₃载体，因此通过掌握γ-Al₂O₃载体性质的可调变规律就可制备出适合特定催化反应的高性能载体。本文以γ-Al₂O₃载体制备及γ-Al₂O₃载体后处理等过程为出发点，详细评述了近年来γ-Al₂O₃载体的孔结构、表面酸性和水热稳定性等性质调变的最新研究进展，并指明了γ-Al₂O₃载体今后研究重点和发展方向。