以泡沫镍为基体,采用恒电流沉积法制备了Pd - Ru/Ni(泡沫镍)催化剂.SEM表征发现,Pd - Ru粒子直径约为200 nm,均匀分布在泡沫镍骨架表面,Pd:Ru原子比为6:1.线性电势扫描 伏安法研究表明:Pd - Ru/Ni(泡沫镍)电极对H2 O2电还原反应具有较高的催化性能,起始还原电 .势可达0.84 V.常温(25℃)下,当H2O2浓度为0.4 mol/L时,以Pd - Ru/Ni为阴极,AZ31镁合金为阳极的Mg - H2 O2半燃料电池,最大功率密度为195 mW/cm2,对应的电池电压可达1.25 V.
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