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Formation and electrochemical properties of petal-Like architectures derived from titanium alloy oxide nanotubes for supercapacitors
Journal of Alloys and Compounds ( IF 6.2 ) Pub Date : 2019-05-01 , DOI: 10.1016/j.jallcom.2019.01.147
Huimin Cui , Wenqiang Huang , Lizhen Wu , Shikai Cao , Ye Song

Abstract 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 °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.

中文翻译:

用于超级电容器的钛合金氧化物纳米管衍生的花瓣状结构的形成和电化学性能

摘要 通过对 Ti-4Al-0.005B (TA5) 合金进行阳极氧化,然后在磷酸溶液中进行化学蚀刻,很容易制造出花瓣状结构的 TiO2 混合氧化物 (PAATMO) 纳米管。PATMO 的形成可归因于 TiO2 的水辅助结晶和蚀刻过程中氧化铝组分在 TiO2 混合氧化物中的溶解的综合作用。在 450 °C 氩气中退火的 PATMO 的比电容大约是纳米管对应物的 6 倍。PATMO 显示出优异的倍率性能和循环稳定性,在 0.1 mA cm-2 时的最大比电容为 110.78 F cm-3。
更新日期:2019-05-01
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