高师理科学刊2024，Vol.44Issue(4)：68-72,5.DOI:10.3969/j.issn.1007-9831.2024.04.012
两种形貌的高储电性能ZnCo2O4电极材料
Two morphologies of ZnCo2 O4 electrode materials with high electrical storage properties
李少琪 1陈婷婷1
作者信息
- 1. 哈尔滨师范大学光电带隙教育部重点实验室,黑龙江 哈尔滨 150025||哈尔滨师范大学物理与电子工程学院,黑龙江 哈尔滨 150025
- 折叠
摘要
Abstract
ZnCo2O4 has become an important electrode material in the field of supercapacitors due to its simple synthesis method and low cost.Prepared two different morphologies of ZnCo2O4 materials through two steps of hydrothermal and annealing treatment,and tested their supercapacitor performance in a three-electrode system.The results showed that the performance of ZnCo2O4 electrode with flower shaped nanosheet microsphere morphology is better than that of ZnCo2O4 electrode with nanosheet morphology.At a current density of 1 A·g-1,the specific capacitance of the ZnCo2O4 nanosheet microsphere electrode is as high as 3 005.0 F·g-1.At a current density of 20 A·g-1,the specific capacitance can still be maintained at 2 150.0 F·g-1,with a capacitance retention rate of 71.5%.After 10 000 cycles of charging/discharging,the capacitance retention rate still reaches 93.8%.The ZnCo2O4 nanosheet microsphere electrode material has good application prospects in the field of supercapacitor electrodes.关键词
二元过渡金属氧化物/钴酸锌/超级电容器/纳米片微球Key words
binary transition metal oxide/ZnCo2O4/supercapacitor/nanosheet microspheres分类
化学化工引用本文复制引用
李少琪,陈婷婷..两种形貌的高储电性能ZnCo2O4电极材料[J].高师理科学刊,2024,44(4):68-72,5.
