以碳纳米管（CNT）为前驱体，通过改变在水热釜中的反应时间、温度及NiFe双层氢氧化物的负载量制备不同的NiFe/碳纳米管复合电解水催化剂，将碳纳米管独特的中空微观结构、高比表面积、高导电性与NiFe催化剂的高催化活性相结合，制备了一种高效率纳米复合电解水催化剂。利用扫描电镜、电化学分析、激光拉曼、X射线衍射等分析方法研究反应温度、时间和NiFe负载量对NiFe/碳纳米管复合催化剂的析氧性能（OER）影响，结果表明，反应温度为150℃、反应时间为8 h下制备的NiFe/碳纳米管复合催化剂的电催化析氧活性最高。

NiFe is used as precursor and carbon nanotubes (CNTs) is used as carrier,different NiFe/carbon nanotubes composite catalysts for water electrolysis is prepared by adjusting reaction time,temperature and the loading amount of NiFe double hydroxide.These catalysts combine unique hollow structure,high specific surface area and high conductivity of CNTs with high catalytic activity of NiFe.The effects of reaction temperature,time and NiFe loading amount on the oxygen evolution performance of NiFe/CNTs composite catalysts are investigated by means of scanning electron microscopy,electrochemical analysis,laser Raman and X-ray diffraction.It is shown that electrocatalytic oxygen evolution activity of NiFe/CNTs composite catalysts prepared at 150℃ in 8 h reaches the optimum.

王凯(1986-),男,博士后,讲师,研究方向为新型炭材料的电化学性能研究,wangkaityuan@126.com