论文部分内容阅读
采用FT-IR和程序升温热谱技术研究了Mo/HZSM-5催化剂的制备过程.结果表明Mo/HZSM-5样品在合适的温度下焙烧一定时间,Mo物种与HZSM-5分子筛的酸中心(主要是强酸中心)起作用,并且一部分Mo物种会迁移到分子筛孔道内.在外表面的Mo物种和在孔道内强酸中心作用的Mo物种,可能是对甲烷活化起作用的
The preparation process of Mo / HZSM-5 catalyst was studied by FT-IR and temperature-programmed thermometry. The results show that the Mo / HZSM-5 sample calcined at a suitable temperature for a certain period of time, Mo species and HZSM-5 zeolite acid center (mainly strong acid center), and part of the Mo species will migrate into the molecular sieve pore. Mo species on the outer surface and Mo species acting as a strong acid center in the pore may be responsible for methane activation