Formation and electrochemical properties of petal-Like architectures derived from titanium alloy oxide nanotubes for supercapacitors

被引：9
作者：
Cui, Huimin [1 ]
Huang, Wenqiang [1 ]
Wu, Lizhen [1 ]
Cao, Shikai [1 ]
Song, Ye [1 ]
机构：
[1] Nanjing Univ Sci & Technol, Educ Minist, Key Lab Soft Chem & Funct Mat, Nanjing 210094, Jiangsu, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2019年 / 785卷
基金：
中国国家自然科学基金;
关键词：
Petal-like architecture; Titanium alloy; Anodization; Supercapacitors; Etching; HIGH-PERFORMANCE; TIO2; NANOTUBES; CHARGE STORAGE; ARRAYS; ELECTRODES; WATER; FABRICATION; CAPACITANCE; MORPHOLOGY; CRYSTALLIZATION;
D O I：
10.1016/j.jallcom.2019.01.147
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Petal-like architecture TiO2 mixed oxide (PATMO) nanotubes were readily fabricated by anodization of Ti-4Al-0.005B (TA5) alloy followed by chemical etching in phosphoric acid solution. The formation of PATMO can be attributed to the combined effect of the water-assisted crystallization of TiO2 and the dissolution of alumina component in TiO2 mixed oxides during etching process. The specific capacitance for the PATMO annealed at 450 degrees C in argon is about 6 times greater than that of the nanotube counterparts. The PATMO show excellent rate capability and cycling stability with a maximum specific capacitance of 110.78 F cm(-3) at 0.1 mA cm(-2). (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页码：19 / 24
页数：6
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