采用电刷镀工艺制备了厚度＜1μm的钯膜.AFM和SEM观测表明钯膜由半球型的纳米晶簇构成,晶簇尺寸在20～30 nm之间;在薄膜中没有发现裂纹和气孔.利用电化学剥离方法测定了氢在α薄膜的扩散系数(298～328 K).氢的扩散行为符合Arrhenius定律.扩散系数比相同温度下体材料的扩散系数低1个数量级,表明晶界阻碍了氢的扩散.
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