纳米碳管对MmNi_5合金电化学储氢性能的影响  

The effect of carbon nanotubes on the electrochemical hydrogen storage performance of MmNi_5-type alloy

作　　者：陈昌国[1] 杨祖洪[1] 余丹梅[1] 司玉军[1] 王琪[1] 

机构地区：[1]重庆大学化学化工学院,重庆400030

出　　处：《电源技术》2006年第10期819-821,共3页Chinese Journal of Power Sources

摘　　要：通过循环伏安法、计时电位法研究了纳米碳管的添加量对MmNi5合金在碱性溶液中电化学储氢性能的影响。结果表明,添加纳米碳管可以明显改善MmNi5合金电化学储氢性能;当纳米碳管与MmNi5合金的质量比为1∶16.7时,电极的电化学活性最好,电化学储氢量提高达到62.41%。The electrochemical hydrogen storage performance of MmNi5-type electrodes doped with carbon nanotubes（CNTs） in an alkaline solution was investigated with cyclic voltammetry（CV） and chronopotentiometry（CP）. The results showed that the electrochemical hydrogen storage performance of MmNi5-type electrodes doped with CNTs was notably improved. Furthermore, electrochemical activation ability of the electrode with the CNTs and MmNi5 weight ratio of 1 ： 16.7 was the most excellent, and the discharging capacity increased to 62.41%.

关 键 词：纳米碳管 MmNi5合金 电化学储氢 

分 类 号：TM911[电气工程—电力电子与电力传动]