Improving the electrochemical performance of anatase titanium dioxide by vanadium doping as an anode material for lithium-ion batteries

Anh, Ly Tuan; Kumar, Alok; Thi, Trang Vu; Gim, Jihyeon; Kim, Sungjin; Shin, Eui-Chol; Lee, Jong‐Sook; Kim, Jaekook

doi:10.1016/j.jpowsour.2013.06.080

Cited by 77 publications

(60 citation statements)

References 32 publications

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“…The similar conductivity observed for all the TiVx samples suggests that only the V doping (\2 at%) increases significantly the electronic conductivity, as expected [20], and that the remaining vanadium in surface vanadates and in scherbinaite crystal plays only a minor part.…”

Section: Electrochemical Characterizationsupporting

confidence: 75%

“…Thus, much work aimed at developing nanostructured TiO 2 materials with high specific surface area and interconnected mesopores, readily accessible to electrolyte, which reduces the transport lengths of lithium ions and electrons and improves the performances of a Li-ion battery [12][13][14][15][16][17][18][19]. In addition, electronic conductivity can be improved by doping TiO 2 with aliovalent ions, such as vanadium, niobium, sulfur, or nitrogen [8,20,21], or by deposition of a conductive metal oxide phase at the surface of the nanoparticles [10].…”

Section: Introductionmentioning

confidence: 99%

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Lithium insertion properties of mesoporous nanocrystalline TiO2 and TiO2–V2O5 microspheres prepared by non-hydrolytic sol–gel

Escamilla-Pérez

Louvain

Kaschowitz

et al. 2016

J Sol-Gel Sci Technol

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Mesoporous nanocrystalline TiO 2 and TiO 2 -V 2 O 5 microspheres were prepared by non-hydrolytic solgel from TiCl 4 , VOCl 3 , and i Pr 2 O at 110°C without any solvent or additives. The samples were characterized by elemental analysis, X-ray diffraction, Raman spectroscopy, scanning electron microscopy, nitrogen physisorption, and impedance measurements. At low vanadium loadings, only TiO 2 anatase was detected, and V 2 O 5 scherbinaite was also detected at high vanadium loadings. The texture of the samples depended on the V loading, but all the samples appeared built of primary nanoparticles (&10-20 nm in size) that aggregate to form mesoporous micron-sized spheres. The lithium insertion properties of these materials were evaluated by galvanostatic measurements taken using coin-type cells, in view of their application as electrode for rechargeable Li-ion batteries. The mesoporous TiO 2 microspheres showed good performances, with a specific reversible capacity of 145 and 128 mAh g -1 at C/2 and C, respectively (C = 335.6 mA g -1 ), good coulombic efficiency, and a moderate capacity fade (6 %) from the 2nd to the 20th cycle at C/20. Although the addition of V effectively increased the electronic conductivity of the powders, the specific reversible capacity and cycling performances of the TiO 2 -V 2 O 5 samples were only minimally improved for a 5 at% V loading and were lower at higher V loading. Graphical AbstractTiCl 4 + x VOCl 3+(4+3x)/2 i Pr 2 O 110 °C 4 d Drying Calcination

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Section: Electrochemical Characterizationsupporting

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Lithium insertion properties of mesoporous nanocrystalline TiO2 and TiO2–V2O5 microspheres prepared by non-hydrolytic sol–gel

Escamilla-Pérez

Louvain

Kaschowitz

et al. 2016

J Sol-Gel Sci Technol

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show abstract

“…For BVO-1, the V2p peaks shift about 0.4 eV towards higher binding energies compared with that of BVO-0. Interestingly, a new peak appears at 520.2 eV in BVO-1, which is assigned to the O1s satellite peak [32]. The additional satellite peak results from the hybridization between V-3d and O-2p levels, indicating the formation of V O bonds at the interface between the BiVO 4 nanofibres and embedded Bi 4 V 2 O 11 nanocrystals.…”

Section: Resultsmentioning

confidence: 96%

Realizing nanosized interfacial contact via constructing BiVO4/Bi4V2O11 element-copied heterojunction nanofibres for superior photocatalytic properties

Chen

Sun

et al. 2015

Applied Catalysis B: Environmental

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“…Each experimental peak was well fitted by two lines, with the peaks at the binding energy around 516.5 and 514.8 eV, corresponding to V 3+ and V 2+ , respectively [14]. Here, the peak at 520 eV is due to the O 1s satellite peak, which indicates the hybridization between V 3d and O 2p levels [16]. It is clearly seen that the V 3+ ions are dominant over the V 2+ in Fe 3-x V x O 4 .…”

Section: Microstructurementioning

confidence: 86%

Effect of cation substitution on the magnetic and magnetotransport properties of epitaxial Fe3−xVxO4 films

Chen¹,

Liu²,

Zheng³

et al. 2015

Applied Surface Science

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Improving the electrochemical performance of anatase titanium dioxide by vanadium doping as an anode material for lithium-ion batteries

Cited by 77 publications

References 32 publications

Lithium insertion properties of mesoporous nanocrystalline TiO2 and TiO2–V2O5 microspheres prepared by non-hydrolytic sol–gel

Lithium insertion properties of mesoporous nanocrystalline TiO2 and TiO2–V2O5 microspheres prepared by non-hydrolytic sol–gel

Realizing nanosized interfacial contact via constructing BiVO4/Bi4V2O11 element-copied heterojunction nanofibres for superior photocatalytic properties

Effect of cation substitution on the magnetic and magnetotransport properties of epitaxial Fe3−xVxO4 films

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