通过溶胶凝胶法，分别采用柠檬酸、酒石酸、葡萄糖、蔗糖、EDTA作为络合剂制备LaSrFeCoO₆催化剂，以催化甲烷燃烧为目标反应，考察催化剂的活性。通过比表面积测定（BET）、X射线衍射分析（XRD）、氢还原（H2-TPR）、扫描电镜（SEM）及热分析（TG-DSC）等技术对催化剂进行性能表征。考察不同络合剂对LaSrFeCO₆催化剂结构和性能影响。通过实验结果可以得到：经过800 ℃高温焙烧后，催化剂具有完整的钙钛矿晶型。不同络合剂对催化剂的结构和性能有较大影响；柠檬酸作为络合剂时，所制备LaSrFeCO₆催化剂具有较好的催化活性，T_10%（起燃温度）为 425 ℃，T_90%（完全转化温度）为600 ℃。

LaSrFeCoO₆ was prepared by sol-gel method with different complexing agents (citric acid, tartaric acid, glucose, sucrose, EDTA). The title catalysts were characterized by XRD, BET, H2-TPR, TG-DSC and SEM techniques. The catalytic activity was evaluated for methane combustion. In the experiment different agents were used to prepare catalyst, which was calcined at 800 ℃ for three hours. The obtained catalyst has complete perovskite crystal. Different complexing agents have great influence on the structure and properties of the catalyst. When citric acid was used as the complexing agent, the LaSrFeCO₆ catalyst had better catalytic activity; the conversion of 10% and 90% was obtained at 425 ℃ and 600 ℃, respectively.