水热法制备ZNMO-rGO及其电化学能  

Preparation of ZNMO-rGo by Hydrothermal Method and Its Electrochemical Performance

作　　者：罗成[1] 李翔 LUO Cheng;LI Xiang(School of Automotive Materials,Hubei University of Automotive Technology,Shiyan Hubei 442002)

机构地区：[1]湖北汽车工业学院汽车材料学院,湖北十堰442002

出　　处：《湖北理工学院学报》2025年第2期61-67,共7页Journal of Hubei Polytechnic University

基　　金：湖北省优秀中青年科技创新团队计划项目(项目编号:T201811)。

摘　　要：通过水热法制备钼酸锌镍-石墨烯复合材料(ZNMO-rGO),采用SEM、XRD和FTIR进行表征,探讨了乙醇含量对其结构和微观形貌的影响,利用循环伏安、恒电流充放电和交流阻抗测试研究了其电化学性能。结果表明,ZNMO-rGO复合物以ZnMoO_(4)、NiMoO_(4)和rGO为主晶相,呈棒状结构相互堆积。在2 mol/L KOH电解液中,电流密度为1 A/g时,ZNMO-rGO复合物样品的比电容为472.4 F/g;电流密度为5 A/g时,首圈比电容为100.8 F/g,500次循环后比电容为91.75 F/g,循环稳定性可达91.02%。赝电容行为发生的同时,加入石墨烯使比容量提升,表明ZNMO-rGO是一种有效的电极材料。ZNMO-rGO composites were synthesized via hydrothermal method and characterized by SEM,XRD and FTIR.The influence of ethanol content on structure and morphological properties were investigated.Electrochemical performance was evaluated through cyclic voltammetry,galvanostatic charge-discharge,and AC impedance measurements.Results indicate that ZNMO-rGO composites primarily consist of ZnMoO_(4),NiMoO_(4)and rGO as main crystalline phases,exhibiting a rod-like structure.In 2 mol/L KOH electrolyte,the specific capacitance of ZNMO-rGO composite is 472.4 F/g when the current density is 1 A/g,and when the current density is 5 A/g,the first cycle specific capacitance is 100.8 F/g,and after 500 cycles,the specific capacitance is 91.75 F/g,and the cycle stability can reach 91.02%.The pseudocapacitive behavior combined with graphene incorporation enhances specific capacity,demonstrating ZNMO-rGO as an effective electrode material for supercapacitors.

关 键 词：水热法 掺杂 石墨烯 电极材料 赝电容 超级电容器 

分 类 号：TB333[一般工业技术—材料科学与工程]