摘要
采用一步水热法制备了不同形貌的自支撑型NiMoO_(4)/NF材料,研究了表面活性剂对NiMoO_(4)/NF的形貌与电化学性能的影响。采用XRD和SEM对NiMoO_(4)样品的结构和形貌进行表征。结果表明,表面活性剂的加入,未改变NiMoO_(4)的晶体结构,仅改变了材料的微观形貌。电化学测试结果表明,不同形貌的NiMoO_(4)/NF电极材料在CV曲线中均出现一对氧化还原峰,SDS调控制备的NiMoO_(4)/NF微米花的氧化和还原峰的电流响应值最大,形成闭合CV曲线的积分面积最大。GCD曲线显示,SDS调控制备的NiMoO_(4)/NF在电流密度为1A/g时的放电时间最长,比电容为1742 F/g。该电极经3000圈循环测试后,比电容的保持率为86.8%,电化学循环稳定性良好。
The different morphologies of self-supported NiMoO_(4)/NF materials were prepared by a one-step hydrothermal method,and the effects of surfactants on the morphology and electrochemical properties of NiMoO_(4)/NF were investigated.The structure and morphology of NiMoO_(4)were characterized by XRD and SEM,which showed that the addition of surfactant did not change the crystal structure of NiMoO_(4),but only changed the microscopic morphology of the NiMoO_(4)material.The electrochemical test results showed that a pair of redox peaks appeared in the CV curves of NiMoO_(4)/NF electrode materials with different morphologies.Meanwhile,the SDS-conditioned prepared NiMoO_(4)/NF microflower had the largest current response values of oxidation and reduction peaks,and formed the largest integral area.The GCD curves showed that the SDS-conditioned prepared NiMoO_(4)/NF has the longest discharge time with a specific capacitance of 1742 F/g at 1 A/g.The retention rate of specific capacitance of the NiMoO_(4)/NF microflower electrode material was 86.8%after 3000 cycles,which is promising for the application of supercapacitor electrodes.
作者
文欣悦
葛同乐
杨瑞
WEN Xin-yue;GE Tong-le;YANG Rui(College of Chemistry and Chemical Engineering,Qiqihar University,Heilongjiang Qiqihar 161006,China)
出处
《齐齐哈尔大学学报（自然科学版）》
2024年第4期66-69,85,共5页
Journal of Qiqihar University(Natural Science Edition)
基金
黑龙江省省属高等学校基本科研业务费科研项目(145209112)
齐齐哈尔大学大学生创新创业训练计划项目(202110232076)。
关键词
钼酸镍
表面活性剂
微观形貌
NiMoO_(4)
surfactant
microscopic morphology
