One-step synthesis of vanadium-doped anatase mesocrystals for Li-ion battery anodes

被引：3

作者：

Boytsova, O., V ^{[1
,2
]}

Drozhzhin, O. A. ^{[3
]}

Petukhov, D., I ^{[3
]}

Chumakova, A., V ^{[4
]}

Sobol, A. G. ^{[1
]}

Beltyukov, A. N. ^{[5
]}

Eliseev, A. A. ^{[1
]}

Bosak, A. B. ^{[4
]}

机构：

[1] Lomonosov Moscow State Univ, Dept Mat Sci, 1-73 Leninskie Gory, Moscow 119991, Russia

[2] Kurnakov Inst Gen & Inorgan Chem RAS, Leninskii Prosp 31, Moscow 119071, Russia

[3] Lomonosov Moscow State Univ, Dept Chem, 1-3 Leninskie Gory, Moscow 119991, Russia

[4] European Synchrotron Radiat Facil, 78 Ave Martyrs, F-38000 Grenoble, France

[5] Ural Brunch Russian Acad Sci, Udmurt Fed Res Ctr, UdmFRC UB RAS, St Tatiana Baramzina 34, Izhevsk 426067, Russia

来源：

NANOTECHNOLOGY | 2022年 / 33卷 / 05期

关键词：

TiO2; mesocrystals; vanadium; doped anatase; solid solution; anode material; PHOTOCATALYTIC ACTIVITY; LITHIUM INSERTION; TITANIUM-DIOXIDE; NANOTUBE ARRAYS; TIO2; PERFORMANCE; TRANSFORMATION; ANODIZATION; CAPACITY; IMPACT;

D O I：

10.1088/1361-6528/ac317a

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

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-x V (x) O-2 with vanadium content up to x = 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-x V (x) O-2 mesocrystals exhibit improved specific capacity of 175 mAh g(-1 )(compared to 150 mAh g(-1) for pure anatase phase) and decreased potential gap between charge and discharge processes.

引用

页数：8

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