材料科学
化学工程
锐钛矿
阳极
锂离子电池
钒
锂(药物)
兴奋剂
电解质
纳米片
电化学
法拉第效率
电池(电)
离子
纳米颗粒
介孔材料
纳米线
煅烧
无机化学
纳米技术
作者
O. V. Boytsova,O A Drozhzhin,Dmitrii I. Petukhov,A V Chumakova,A G Sobol,A. N. Beltyukov,A. A. Eliseev,A B Bosak
出处
期刊:Nanotechnology
[IOP Publishing]
日期:2022-01-29
卷期号:33 (5): 055603-
标识
DOI:10.1088/1361-6528/ac317a
摘要
Here we report a successful one-step synthesis of vanadium-doped anatase mesocrystals by reactive annealing of NH4TiOF3/PEG2000 mesocrystal precursors with NH4VO3. The formation solid solution Ti1-xVxO2with vanadium content up tox = 25 at% inheriting the structure of mesocrystals is observed for the first time. The doping mechanism via vapor phase transport of vanadium is proposed. The Ti1-xVxO2mesocrystals exhibit improved specific capacity of 175 mAh g-1(compared to 150 mAh g-1for pure anatase phase) and decreased potential gap between charge and discharge processes.
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