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考察了不同组成的V-Sb-O系复合氧化物对丙烷氨氧化的催化活性.用XRD研究了催化剂的结构,利用程序升温方法研究了催化剂中氧的活动性和表面酸碱性,讨论了催化剂体相和表面结构与催化性能间的关系.结果表明,VSbO_4和Sb_2O_4间的协同作用是影响催化活性的重要因素.
The catalytic activity of different compositions of V-Sb-O composite oxides for the ammoxidation of propane was investigated. The structure of the catalysts was investigated by XRD. The activity of oxygen and the surface acidity and basicity of the catalysts were investigated by temperature programmed method. The results show that the synergistic effect between VSbO_4 and Sb_2O_4 is an important factor affecting the catalytic activity.