纳米ZnO的固相合成及其电化学行为  

Synthesis of ZnO nanoparticle by solid state reaction and its electrochemical behavior

作　　者：王华清[1] 胡绍兵[2] 宋传座[3] 

机构地区：[1]重庆通信学院四系动力发电教研室,重庆400035 [2]重庆通信学院基础部,重庆400035 [3]重庆通信学院一系,重庆400035

出　　处：《粉末冶金材料科学与工程》2011年第3期455-459,共5页Materials Science and Engineering of Powder Metallurgy

摘　　要：针对锌电极循环性能差等问题,利用固相配位化学反应制备纳米ZnO粉体,借助XRD、TEM对粉体进行表征,并采用循环伏安法分析6.0 mol/L的KOH溶液中不同粒度与组成的ZnO电极的电化学性能。结果表明,在较慢扫速(1 mV/s)下,不同组成的电极的循环伏安曲线相差较大,具有合适配比的混配电极展示出较好的循环可逆性,而纯纳米粒子组成的电极电化学性能较差。对不同组成的氧化锌电极充放电性能对比测试表明,最佳配比的混配电极循环充放电性能最好。ZnO nanoparticles were prepared successfully by solid phase coordination chemistry reaction and characterized by XRD and TEM techniques.For different mass fraction of common ZnO particles and ZnO nanopaticles the electrochemical behavior of zinc oxide electrodes were investigated by cyclic voltammetric and charge-discharge method.The results indicate that the peak shapes in cyclic voltammetry（CV） diagrams are different for different electrodes in a 6.0 mol/L KOH solution.The optimum mixture electrode（Sample D） exhibits remarkable cyclic reversibility,while the pure ZnO nanoparticle electrode（Sample B） is worse.By analyzing the properties of the cyclic charge-discharge of ZnO electrodes,the optimum mixture electrode（Sample D） has the best electrochemical property.

关 键 词：纳米ZNO 循环伏安 混配电极 循环可逆性 

分 类 号：O646.2[理学—物理化学] TM912[理学—化学]