摘要
采用水热法-高温煅烧处理制备Ni_xCo_(1-x)MoO_4(x=0、0.25、0.50、0.75和1.00)纳米片阵列,利用XRD、FESEM、循环伏安法和恒流充放电测试方法,分析其晶体结构、微观形貌和赝电容性能。研究表明:Ni_xCo_(1-x)MoO_4纳米片阵列的晶体结构和微观形貌与Ni的相对含量有关;其中,晶体结构为NiMoO_4物相的Ni_(0.50)Co_(0.50)MoO_4纳米片阵列显示出高的比电容、增强的循环稳定性和高倍率放电能力,是一种性能优异的赝电容材料。
NixCo1-xMoO4（x=0,0.25,0.50,0.75 and 1.00）nanosheet array was prepared through hydrothermal method and high-temperature calcination. The crystal structure, micromorphology and pseudocapacitance performance of the samples prepared above were analyzed by using XRD,FESEM, cyclic voltammetry （CV）and galvanostatic charging-discharging method.The results indicate that the crystal structure and micromorphology are related to the relative content of Ni element in NixCo1-xMoO4 materials.Among them,Ni0.50 Co0.50 MoO4 nanosheet array with the crystal structure of NiMoO4 phase exhibits high specific capacitance,enhanced cycling stability and desired rat capability.So,it was an advanced pseudocapacitance material.
作者
余大江
郭绍义
袁永锋
张志强
YU Dajiang GUOShaoyi YUAN Yongfeng ZHANGZhiqiang(Faculty of Mechanical Engineering ＆ Automation, Zhejiang Sci-Tech University, Hangzhou 310018, China)
出处
《浙江理工大学学报（自然科学版）》
2016年第6期855-860,共6页
Journal of Zhejiang Sci-Tech University(Natural Sciences)
基金
国家自然科学基金项目(51302247)
