Ru对以Pd/C为阴极的MSFC性能的提升  

Influence of Ru on performance of MSFC using Pd/C as cathode

作　　者：孙丽美[1] 赵焱[1] 李慧婷[1] 

机构地区：[1]内蒙古民族大学化学化工学院,内蒙古通辽028000

出　　处：《电源技术》2012年第3期339-341,共3页Chinese Journal of Power Sources

基　　金：国家自然科学基金(21003070);内蒙古民族大学博士开放基金(BS232)

摘　　要：利用化学还原法制备了Pd/C和PdRu/C催化剂,考察了Ru对以两催化剂为阴极的Mg-H2O2半燃料电池性能影响。结果发现:以Mg合金为阳极,分别以Pd/C和PdRu/C为阴极的Mg-H2O2半燃料电池性能均随着温度和电解液流速的增加而增大,但后者的提升幅度明显高于前者。温度为328 K,电流密度为75 mA/cm2时,以PdRu/C为阴极的Mg-H2O2半燃料电池的最高能量密度可达145 mW/cm2,高于以Pd/C为阴极的电池50 mW/cm2。电池的恒流放电曲线表明Ru的加入提升了电池稳定性。在60 min的测试时间里,电流为50 mA/cm2时,以PdRu/C为阴极的电池电压稳定在1.9 V,高于以Pd/C为阴极的电池0.3 V。The Pd/C and PdRu/C catalysts were prepared by chemical reduction and the influences of Ru on the performance of Mg-H2O2 semi-fuel cell were investigated. The results show that the performance of Mg-H2O2 semi-fuel cell using AZ31 magnesium alloys as anode and Pd/C or PdRu/C as cathode is all improved with increasing temperature end the flow rate of electrolyte. However, the increase of the latter is significantly higher than that of the former. The peak power density of the cell using PdRu/C as cathode is 145 mW/cm2 at 328 K and the current density of 75 mNcm2, end it is improved about 50 mW/cm2 compared with that of the cell using Pd/C as cathode. The long-term discharge curves of Mg-H2O2 semi-fuel cell indicate that the addition of Ru improves the cell stability. The voltage of the cell using PdRu/C as cathode is stabilized at 1.9 V at a constant current-density of 50 mA/cm2 for 60 min, and it is 0.3 V higher then the cell using Pd/C as cathode.

关 键 词：钯 钌 电池性能 镁-过氧化氢半燃料电池 

分 类 号：TM911[电气工程—电力电子与电力传动]