以PdCl2为金属前驱体,在水-乙醇混合体系内,添加微量的CTAB,简易加热合成单分散纳米Pd粒子,用XRD和TEM等技术进行了表征,考察了PdCl2/CTAB组成对纳米粒子形貌和尺寸的影响,通过循环伏安法对纳米Pd粒子修饰玻碳电极对甲醛的电催化活性进行了研究.结果表明,通过改变PdCl2/CTAB组成可以调控纳米Pd粒子的粒径和形貌;当PdCl2与CTAB的物质的量之比为1∶21、于(70±1)℃反应3h时,得到呈单分散性的多边形纳米钯粒子,粒径为(8±1)nm,它对甲醛有较高的电催化活性.
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