采用共沉淀法制备了微孔MgO/ZrO₂固体碱催化剂，考察了焙烧温度对催化剂催化氧化NO效率的影响，利用N₂吸附/脱附、XRD、SEM及FT-IR对催化剂结构进行表征。结果表明，催化氧化NO的反应温度为150℃时，400℃焙烧的催化剂催化氧化NO的转化率达到了94.25%。焙烧温度为400℃时，催化剂的比表面积为214.52 m²/g、平均孔径为1.88 nm、孔体积为0.215 6 cm³/g，并且其表面颗粒分散性好，使催化剂能与NO充分接触，利于催化氧化NO。

Microporous MgO/ZrO₂ solid base catalyst is prepared via co-precipitation method.The effect of calcination temperature on catalytic efficiency of the catalyst for oxidation of NO is studied.The structure of catalyst is characterized by means of N₂ adsorption/desorption, XRD, SEM and FT-IR.Results show that the conversion rate of NO reaches 94.25% when the reaction temperature is 150℃for catalytic oxidation of NO, and MgO/ZrO₂ calcined at 400℃ is served.MgO/ZrO₂ prepared at a calcination temperature of 400℃ has a specific surface area of 214.52 m²·g^-1, an average pore diameter of 1.88 nm, a pore volume of 0.215 6 cm³·g^-1, and a good particle dispersibility on its surface.The catalyst can fully contact with NO, which is beneficial to catalytic oxidation of NO.

何人广(1997-),男,硕士研究生,研究方向为大气污染控制,herenguang97@163.com。