不同炭载体对铝水储氢电池复合正极的影响  

Effects of different carbon supports on the performance of aluminum alloy storing hydrogen cell composite cathode material

作　　者：张林森[1] 李振亚[2] 王为[2] 

机构地区：[1]郑州轻工业学院材料与化学工程学院,河南郑州450002 [2]天津大学化工学院,天津300072

出　　处：《电源技术》2009年第1期37-40,共4页Chinese Journal of Power Sources

基　　金：广东省科技计划项目(2003C105010)

摘　　要：采用化学还原法制备了以炭为载体的Ni/C复合正极材料。运用扫描电子显微镜法(SEM)和X射线衍射光谱法(XRD)对目标材料Ni/C的形貌和结构进行了分析,通过稳态极化曲线研究了Ni/C膜电极在中性电解液中的活性,将Ni/C膜电极与铝合金组装成的铝水储氢电池进行了恒流放电实验以研究放电性能。考察了活性炭,中间相炭微球和炭黑不同炭载体对目标材料性能的影响。结果表明:以炭黑为载体的电催化剂在中性电解液中具有优良的电催化活性。The Ni/carbon （Ni/C） composite cathode materials were synthesized by chemical reduction method using carbon as the support. Morphologies and structures of Ni/C were measured and characterized by scanning electron microscopy and X-ray diffraction. The activity of the Ni/C membrane electrodes were studied in the neutral electrolyte by steady-state polarization curves. The aluminum alloy storing hydrogen cells were tested with different Ni/C membrane electrodes and aluminum alloy electrodes in neutral electrolyte. The effects of different carbon supports, such as activated carbon, mesocarbon microbead and black carbon, on the performance of as-synthesized materials were investigated and the causes also analyzed. The results show that the composite cathode materials carbon-supported by black carbon have the most excellent electrochemical performances.

关 键 词：Ni/C 炭载体 储氢电池 中性电解液 

分 类 号：TM911[电气工程—电力电子与电力传动]