采用溶胶-凝胶法制备了CeO₂-CuO/ZnO/Al₂O₃，通过XRD检测了CeO₂-CuO/ZnO/Al₂O₃，揭示了CeO₂-CuO/ZnO/Al₂O₃微观结构和内在规律。结果发现，金属离子之间存在协同效应，以1，5-戊二醇气相催化脱氢制备δ-环戊内酯为探针反应，评价其催化活性，3% CeO₂的CuO/ZnO/Al₂O₃呈现出最高催化活性。催化反应的最佳反应条件：反应温度为563 K，气时空速为5 h^-1，反应时间为5 h，V（氢气）：V（1，5-戊二醇）=2.0：1，p（H₂）=0.12 MPa，此时，1，5-戊二醇的转化率为93.0%，δ-环戊内酯的选择性和收率最大值分别达到94.0%、87.4%。该方法为1，5-戊二醇气相催化脱氢制备δ-环戊内酯的中试和工业放大性研究提供了基础数据和实验依据。

The CeO₂-CuO/ZnO/Al₂O₃ catalyst is prepared by the sol-gel method and is detected by XRD.The detection discloses the micro-structure and internal rule of CeO₂-CuO/ZnO/Al₂O₃.It is found that the synergistic effects exist among metal ions.Its catalytic activity is evaluated through the gas-phase catalytic dehydrogenation of 1,5-pentanediol to make δ-valerolactone,indicating that the catalyst containing 3% of CeO₂ shows the highest catalytic activity.The optimum conditions are as follows:the reaction temperature is at 563K,GHSV=5 h^-1,the reaction time lasts for 5 h,hydrogen pressure is 0.12 MPa,and V(H₂):V(1,5-Pentanediol)=2.0:1.Under the optimum conditions,the conversion of 1,5-pentanediol is 93.0%,the maximum selectivity and yield of δ-valerolactone reach 94.0% and 87.4% respectively.This study provides plenty of basic data and experimental basis for the pilot and industrial scale up of the gas-phase catalytic dehydrogenation of 1,5-pentanediol to δ-valerolactone.