纳米片状Bi_(2)O_(2)CO_(3)负极的制备及其电化学性能研究  

Preparation of nanosheet Bi_(2)O_(2)CO_(3) anode and study on its electrochemical properties

作　　者：杨壮 陈盈竹 YANG Zhuang;CHEN Ying-zhu(China-UK Low Carbon College,Shanghai Jiao Tong University,Shanghai 200120,China)

机构地区：[1]上海交通大学中英国际低碳学院,上海200120

出　　处：《现代化工》2023年第11期179-183,189,共6页Modern Chemical Industry

基　　金：上海交通大学科研启动基金(WF220528005,ZXDF280001/024)。

摘　　要：为解决铋基材料作为电极稳定性差的问题,采用电化学电镀、退火等手段在碳织布表面生长纳米片状的大层间距碳酸氧铋制备碳酸氧铋/碳织布负极。经过电化学测试表明,制备的碳酸氧铋/碳织布负极在7 mA/cm^(2)下实现了2.51 F/cm^(2)的高面积电容值,在20 mA/cm^(2)充放电5 000圈后电容值仍保持最大值的88.73%,与同等实验条件下制备的铋/碳织布相比提升了31.99%,展现了良好的电化学性能。In order to solve the problem that bismuth-based materials as electrode show poor stability,Bi_(2)O_(2)CO_(3)/CC anode is prepared by growing large layer-spacing bismuth-oxycarbonate on the surface of carbon cloth through electrochemical electroplating and annealing methods.The electrochemical test shows that the prepared Bi_(2)O_(2)CO_(3)/CC achieves a high area capacitance of 2.51 F·cm^(-2)at 7 mA·cm^(-2),and its capacitance remains 88.73%of the maximum value after 5000 cycles of charging and discharging at 20 mA·cm^(-2),which is 31.99%higher than Bi/CC prepared under the same experimental conditions,showing good electrochemical performance.

关 键 词：超级电容器负极 碳酸氧铋 纳米片 稳定性 面积电容值 

分 类 号：TK02[动力工程及工程热物理]