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应用EXAFS类似原理,对不同负载量粉状MgO/γ-Al_2O_3负载型催化剂Mg-K边的SEELFS(Surface Extended Energy Loss Fine Structure)一阶微分谱进行数据处理,得到了Mg-Mg和Mg-O键长。研究发现,MgO在γ-Al_2O_3载体上表面自发单层分散。
By using the similar principle of EXAFS, the first order differential spectrum of SEELFS (Surface Extended Energy Loss Fine Structure) of MgO / γ-Al_2O_3 supported catalysts with different loadings was processed to obtain Mg-Mg and Mg-O Bond length. It is found that MgO is spontaneously monolayer dispersed on the upper surface of γ-Al 2 O 3 support.