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以NH3、吡啶、Et3N、CO2和苯酚为探针，用TPD－MS方法对ZrO2催化剂的酸碱性质进行了表征．ZrO2上碱性探针（NH3、吡啶和Et3N）的脱附温度远低于在强酸性SiO2－Al2O3上；而酸性探针CO2的脱附温度远低于在强碱性MgO上的结果．为ZrO2的弱酸弱碱性质提供了证明．NH3吸附IR结果表明ZrO2表面配位不饱合Zr4＋为酸（Lewis酸）中心．NH3、吡啶和Et3N与这些酸中心作用的方式和能量分布相似．NH3和CO2的TPD谱图均存在三个脱附峰，且相应脱附峰的温度范围相近．表明ZrO2的酸中心和碱中心具有匹配相当的酸、碱强度，ZrO2为典型的酸－碱双功能催化剂，在苯酚的TPD过程中，ZrO2的特征表现为对苯酚的强吸附和对苯酚分解的高活性．文中结合IR结果，对与NH3和CO2的脱附相联系的表面吸附物种分别进行了讨论．
The acid-base properties of ZrO2 catalysts were characterized by TPD-MS with NH3, pyridine, Et3N, CO2 and phenol as probes. The desorption temperature of basic probes (NH3, pyridine and Et3N) on ZrO2 is much lower than that on strongly acidic SiO2-Al2O3, while the desorption temperature of acid probe CO2 is much lower than that on strongly basic MgO. It provides evidence for the weak acid-base properties of ZrO2. NH3 adsorption IR results show that the surface of ZrO2 coordination unsaturated Zr4 + acid (Lewis acid) center. NH3, pyridine and Et3N behave similarly to these acid centers in a similar manner and in energy distribution. There are three desorption peaks in the TPD spectra of NH3 and CO2, and the corresponding desorption peaks have similar temperature ranges. It is indicated that the acid and base centers of ZrO2 have the matching acid and alkali strength. ZrO2 is a typical acid-base bifunctional catalyst. During the TPD of phenol, ZrO2 is characterized by strong adsorption of phenol and decomposition of phenol Highly active. In this paper, the surface adsorption species associated with the desorption of NH3 and CO2 are discussed separately in connection with the IR results.