N-doped TiO2 hierarchical microspheres as electrode for high-performance supercapacitors

被引：9

作者：

Jiang, Lihua ^{[1
,2
]}

Tian, Haiyan ^{[2
]}

Shen, Weixuan ^{[2
]}

Wang, Yanming ^{[2
]}

Ma, Yuanwen ^{[2
]}

Hou, Pingping ^{[2
]}

Wu, You ^{[1
]}

Xiang, Peng ^{[1
]}

Xiao, Ting ^{[1
]}

Tan, Xinyu ^{[1
]}

机构：

[1] China Three Gorges Univ, Hubei Prov Engn Technol Res Ctr Power Transmiss L, Coll Elect Engn & New Energy, Yichang 443002, Hubei, Peoples R China

[2] China Three Gorges Univ, Coll Mat & Chem Engn, Yichang 443002, Hubei, Peoples R China

来源：

MATERIALS LETTERS | 2021年 / 295卷

基金：

中国国家自然科学基金;

关键词：

TiO2 hierarchical microsphere; Supercapacitor; Nitrogen doping; Electrical properties; NANOTUBE ARRAYS; CAPACITANCE;

D O I：

10.1016/j.matlet.2021.129840

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, N-doped TiO2 hierarchical microspheres were prepared by a hydrothermal process for high performance supercapacitor. This structured microsphere can provide a large specific surface area and a suitable pore size, which is conducive to electrolyte infiltration, and the nitrogen doping can improve the electrical properties of intrinsic TiO2. Combining these two strategies, the specific capacitance of N-doped TiO2 microspheres increases from 2.26 to 11.89 mF/cm(2) at current density of 1 mA/cm(2) and the capacitance remains 90.5% of the original capacity after 10,000 cycles. (C) 2021 Published by Elsevier B.V.

引用

页数：4

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