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用EXAFS研究了不同制备条件对合成甲醇催化剂Cu/ZnO/Al2O3结构的影响,研究表明选择较温和的还原气氛和还原温度有利于制备高分散的Cu催化剂,在还原前较小的焙烧温度有利于制备较小颗粒的ZnO粒子,此研究表明Cu0是催化剂的主要活性组分.
The effect of different preparation conditions on the structure of Cu / ZnO / Al2O3 catalyst for methanol synthesis was studied by EXAFS. The results showed that the choice of mild reduction atmosphere and reduction temperature is conducive to the preparation of highly dispersed Cu catalyst. The smaller calcination temperature before reduction is favorable Preparation of smaller particles of ZnO particles, this study shows that Cu0 is the main active component of the catalyst.