摘要
采用氢气高温还原的方法制备了多硫化钠 溴储能电池负极用Ni/C、Mo/C、NiMo/C和NiCo/C催化剂,用XRD、TEM对催化剂进行了表征。不同温度焙烧的NiCo/C催化剂仅检测到Ni的晶相。研究了电极支撑材料、电催化剂含量对多硫化钠 溴储能电池充、放电性能的影响。在所研究的4种多硫化钠 溴电池负极催化剂中,NiCo/C的催化性能最好,1073K焙烧的NiCo/C催化剂性能比823K焙烧的NiCo/C催化剂性能好。Pt/C是多硫化钠 溴储能电池正极性能良好的电催化剂,铂催化剂为0.1mg/cm2正极时,可以获得较好的性能。
The catalysts of nickel, molybdenum, alloy of nickel and molybdenum, alloy of nickel and cobalt supported on carbon were prepared by reduction with hydrogen at high temperature. The catalyst characterization was carried out by XRD and TEM technologies. It was found that only crystal phase of Ni was detected in NiCo/C catalyst calcined at different temperatures. Effect of different electrode carbon support and content of electrocatalyst on the charging and discharging performance of sodium polysulfide/bromine energy storage cell was investigated. NiCo/C catalyst has the highest performance for the negative electrode of sodium polysulfide/bromine energy storage cell in the four catalysts investigated. NiCo/C catalyst calcined at 1 073 K outperforms that calcined at 823 K. Pt/C catalyst have high performance for the positive electrode of sodium polysulfide/bromine energy storage cell. The activity of electrode with 0.1 mg/cm2 platinum loading is high enough to obtain high performance of the cell.
出处
《电源技术》
CAS
CSCD
北大核心
2003年第5期446-450,共5页
Chinese Journal of Power Sources
基金
中国科学院知识创新工程科研创新基金资助项目[中国博士后科学基金(28批)]
