The surface acidic properties of heteroatom-containing(M)AlPO_4-5(M=Si,Mg,Co)have been studied by means of Temperature Programmed Desorption(TPD)and Infrared spectroscopy(IR).

• 利用吡啶吸附态的红外光谱(IR)、氨气的程序升温脱附(TPD)等方法研究了不同杂原子的磷酸铝分子筛的表面酸性.