NiMoO_(4)/g-C_(3)N_(4)的制备及电化学性能研究  

Preparation and Electrochemical Performance of NiMoO_(4)/g-C_(3)N_(4)

作　　者：杨先军 聂午阳 白杨 张建军[1] 梁炳亮[1] 陈卫华[1] 艾云龙[1] Yang Xianjun;Nie Wuyang;Bai Yang;Zhang Jianjun;Liang Bingliang;Chen Weihua;Ai Yunlong(School of Materials Science and Engineering,Nanchang Hangkong University,Nanchang 330063,China)

机构地区：[1]南昌航空大学材料科学与工程学院,江西南昌330063

出　　处：《稀有金属材料与工程》2021年第11期4045-4050,共6页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(51861026);江西省教育厅科学基金(GJJ160688)。

摘　　要：超级电容器具有比电容高、循环寿命长和绿色无污染的特点,其优异的电化学性能备受关注。本实验水热合成了NiMoO_(4)/g-C_(3)N_(4)复合粉体,并将粉体涂覆在泡沫镍上制备了NiMoO_(4)/g-C_(3)N_(4)电极材料。结果表明,NiMoO_(4)/g-C_(3)N_(4)粉体形貌主要为NiMoO_(4)纳米棒和团状g-C_(3)N_(4),且NiMoO_(4)纳米棒生长在g-C_(3)N_(4)纳米片上。在NiMoO_(4)中加入30at%的g-C_(3)N_(4)能降低电容体系的等效串联电阻和扩散阻抗,有利于氧化还原反应的进行。相比于其他g-C_(3)N_(4)含量的电极材料,g-C_(3)N_(4)含量为30at%的NiMoO_(4)/g-C_(3)N_(4)电极材料具有更高的比电容(584.3 F/g)和更好的倍率特性。Supercapacitors have the characteristics of high specific capacitance,long cycle life and green pollution-free,and their excellent electrochemical performance has attracted much attention.In this research,NiMoO_(4)/g-C_(3)N_(4) composite powder was hydrothermally synthesized,and the composite powder was coated on foamed nickel to prepare NiMoO_(4)/g-C_(3)N_(4) electrode material.The results show that the morphology of NiMoO_(4)/g-C_(3)N_(4) powder is mainly NiMoO_(4) nanorods and g-C_(3)N_(4) clumps,and NiMoO_(4) nanorods grow on g-C_(3)N_(4) nanosheets.The electrochemical performance test results show that adding 30at%g-C_(3)N_(4) to NiMoO_(4) can reduce the equivalent series resistance and diffusion impedance of the capacitor system,which is beneficial to the oxidation-reduction reaction.Compared with other electrode materials with different g-C_(3)N_(4) contents,NiMoO_(4)/g-C_(3)N_(4) electrode materials with a g-C_(3)N_(4) content of 30at%have higher specific capacitance(584.3 F/g)and better rate characteristics.

关 键 词：超级电容器 赝电容 g-C_(3)N_(4) 电化学性能 

分 类 号：TG154.5[金属学及工艺—热处理]