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研究了碱土金属化合物在ＺｒＯ２ 表面上的分散状况及碱性． 结果表明，碱土金属硝酸盐分解成为氧化物的难度随着原子序数的增大而增加． Ｍｇ（ＮＯ３）２ 在５５０ ℃时就可以直接分解为ＭｇＯ．Ｃａ（ＮＯ３）２ 和Ｓｒ（ＮＯ３）２ 不能单独分解成ＣａＯ和ＳｒＯ， 但当负载在ＺｒＯ２ 载体上时，就可以在载体表面分解成ＣａＯ和ＳｒＯ， 只是由于负载量不同其存在的形式各不相同．ＣａＯ含量较少时，ＣａＯ与ＺｒＯ２ 形成固溶体而不是以ＣａＯ 的形式分散在ＺｒＯ２ 的表面；ＣａＯ含量较多时，生成ＣａＺｒＯ３ ．ＳｒＯ含量较少时，以ＳｒＯ 的形式分散在ＺｒＯ２ 的表面上； 含量较多时，有ＳｒＺｒＯ３ 生成．Ｂａ（ＮＯ３）２ 即使有载体ＺｒＯ２ 存在时也不能分解成ＢａＯ， 而是以Ｂａ（ＮＯ２）２ 的形式分散于ＺｒＯ２ 表面．ＣＯ２ＴＰＤ 实验表明，与纯ＺｒＯ２ 相比，负载样品的碱位分布范围较宽，碱的强度与数量都有很大提高．
The dispersion and basicity of alkaline earth metal compounds on the surface of ZrO2 were studied. The results show that the difficulty of the decomposition of alkaline earth metal nitrates into oxides increases with the atomic number. Mg (NO3) 2 at 550 ℃ can be directly decomposed into MgO. Ca (NO3) 2 and Sr (NO3) 2 can not be decomposed into CaO and SrO alone, but can decompose to CaO and SrO on the surface of the support when loaded on the ZrO2 support, only because of their different loading forms the same. When the content of CaO is small, CaO forms a solid solution with ZrO2 rather than dispersed in the form of CaO on the surface of ZrO2. When CaO content is high, CaZrO3 is formed. When the content of SrO is small, SrO is dispersed on the surface of ZrO2. When the content is large, SrZrO3 is formed. Ba (NO3) 2 can not decompose into BaO even in the presence of ZrO2, but dispersed in the form of Ba (NO2) 2 on the surface of ZrO2. Compared with pure ZrO2, the experimental results of CO2-TPD showed that the distribution of alkalinity in the loaded samples is wide, and the strength and quantity of alkali are greatly increased.