Co_(3)O_(4)电极材料的制备及电学性能的分析  

Preparation of Co_(3)O_(4) Material and Analysis of Electrical Properties

作　　者：胡天豪 王静[1] 林秀玲[1] 葛烨 董国涛 Hu Tianhao;Wang Jing;Lin Xiuling;Ge Ye;Dong Guotao(College of Materials Science and Engineering,Anhui University of Science And Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学材料科学与工程学院,安徽淮南232001

出　　处：《山东化工》2021年第20期19-21,共3页Shandong Chemical Industry

摘　　要：沸石咪唑酯骨架结构材料(ZIF-67)是一种多孔晶体材料,其优异的化学稳定性、高的孔隙率和较大的比表面积使其成为一种理想的模板剂,同时这种结构的材料也可以用于合成高性能的Co_(3)O_(4)电极材料。以ZIF-67作为模板剂,经过热处理合成具有菱形十二面体的Co_(3)O_(4)材料。再构造三电极系统对电极材料的电化学性能进行测试。结果表明,由ZIF-67作为模板可有效控制Co_(3)O_(4)的微观结构和表面形貌;并且Co_(3)O_(4)电极的比电容可达820 F/g;经过5000次充放电循环后,比电容保持率约为60%,循环性能良好;充放电的库伦效率约为100%;并具有较高的电导率和优良的倍率性能。Zeolitic imidazolium ester framework material(ZIF-67)is a kind of porous crystal material.Its excellent chemical stability,high porosity and large specific surface area make it an ideal template.At the same time,this kind of material can also be used to synthesize high-performance Co_(3)O_(4)electrode materials.Co_(3)O_(4)with rhombic dodecahedron was synthesized by heat treatment using ZIF-67 as template.The three electrode system was constructed to test the electrochemical performance of the electrode materials.The results show that the microstructure and surface morphology of Co_(3)O_(4)can be effectively controlled by using ZIF-67 as the template;the specific capacitance of Co_(3)O_(4)electrode can reach 820 F/g;after 5000 charge discharge cycles,the specific capacitance retention rate is about 60%,the cycle performance is good;the coulomb efficiency of charge discharge is about 100%;and it has high conductivity and excellent rate performance.

关 键 词：超级电容器 过渡金属氧化物 电极材料 电学性能 

分 类 号：TQ152[化学工程—电化学工业]