东华大学学报（英文版）2024，Vol.41Issue(4)：377-387,11.DOI:10.19884/j.1672-5220.202405010
优化TiO2纳米管形貌以构建高性能超级电容器电极
Morphology Control of TiO2 Nanotubes towards High-Efficient Electrodes for Supercapacitor
摘要
Abstract
This article studies the role of electrochemical parameters in controlling the morphology of oxidized TiO2 nanotubes and the electrochemical performance of modified TiO2 nanotubes.Humidity is a key factor for fabricating TiO2 nanotubes.When the relative humidity belows 70％,the TiO2 nanotubes can be successfully prepared.What's more,by changing the anodization voltage and time,the diameter and the length of TiO2 nanotubes can be adjusted.In addition,the TiO2 nanotubes are modified through electrochemical self-doping and loading Pt metal particles on the surface of the nanotubes,which promotes the performance of the supercapacitor.The sample anodized at 100 V for 3 h has a specific capacity of up to 2.576 mF/cm2 at a scan rate of 100 mV/s after self-doping,and its capacity retention rate still remains at 89.55％after 5 000 cycles,demonstrating excellent cycling stability.The Pt-modified sample has a specific capacity of up to 3.486 mF/cm2 at the same scan rate,exhibiting more outstanding electrochemical performance.关键词
TiO2纳米管/阳极氧化/导电性/超级电容器Key words
TiO2 nanotube/anodization/conductivity/supercapacitor分类
化学化工引用本文复制引用
王瑾,陈广冰,王春瑞,李惠..优化TiO2纳米管形貌以构建高性能超级电容器电极[J].东华大学学报（英文版）,2024,41(4):377-387,11.基金项目
National Natural Science Foundation of China(No.12004070) （No.12004070）
