High performance Cr, N-codoped mesoporous TiO2 microspheres for lithium-ion batteries

Zhonghe Bi; M. Parans Paranthaman; Bingkun Guo; Raymond R. Unocic; Harry M. Meyer; Craig A. Bridges; Xiao Guang Sun; Sheng Dai

doi:10.1039/c3ta14535b

High performance Cr, N-codoped mesoporous TiO₂ microspheres for lithium-ion batteries

Zhonghe Bi, M. Parans Paranthaman, Bingkun Guo, Raymond R. Unocic, Harry M. Meyer, Craig A. Bridges, Xiao Guang Sun, Sheng Dai

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Abstract

Cr, N-codoped TiO₂ mesoporous microspheres have been successfully synthesized by a facile hydrothermal reaction followed by annealing under an ammonia atmosphere. Through introduction of Cr, the nitrogen doping level was increased from 2.81 at.% for N-doped TiO₂ to 5.68 at.% for Cr, N-codoped TiO₂, which improves the electrical conductivity of TiO₂. When used as an anode for lithium-ion rechargeable batteries, the Cr, N-codoping TiO₂ microspheres led to an enhanced performance of 159.6 mA h g^-1 at 5 C with a drop of less than 1% after 300 cycles.

Original language	English
Pages (from-to)	1818-1824
Number of pages	7
Journal	Journal of Materials Chemistry A
Volume	2
Issue number	6
DOIs	https://doi.org/10.1039/c3ta14535b
State	Published - Feb 14 2014

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abstract = "Cr, N-codoped TiO2 mesoporous microspheres have been successfully synthesized by a facile hydrothermal reaction followed by annealing under an ammonia atmosphere. Through introduction of Cr, the nitrogen doping level was increased from 2.81 at.% for N-doped TiO2 to 5.68 at.% for Cr, N-codoped TiO2, which improves the electrical conductivity of TiO2. When used as an anode for lithium-ion rechargeable batteries, the Cr, N-codoping TiO2 microspheres led to an enhanced performance of 159.6 mA h g-1 at 5 C with a drop of less than 1% after 300 cycles.",

author = "Zhonghe Bi and Paranthaman, {M. Parans} and Bingkun Guo and Unocic, {Raymond R.} and Meyer, {Harry M.} and Bridges, {Craig A.} and Sun, {Xiao Guang} and Sheng Dai",

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T1 - High performance Cr, N-codoped mesoporous TiO2 microspheres for lithium-ion batteries

AU - Bi, Zhonghe

AU - Paranthaman, M. Parans

AU - Guo, Bingkun

AU - Unocic, Raymond R.

AU - Meyer, Harry M.

AU - Bridges, Craig A.

AU - Sun, Xiao Guang

AU - Dai, Sheng

PY - 2014/2/14

Y1 - 2014/2/14

N2 - Cr, N-codoped TiO2 mesoporous microspheres have been successfully synthesized by a facile hydrothermal reaction followed by annealing under an ammonia atmosphere. Through introduction of Cr, the nitrogen doping level was increased from 2.81 at.% for N-doped TiO2 to 5.68 at.% for Cr, N-codoped TiO2, which improves the electrical conductivity of TiO2. When used as an anode for lithium-ion rechargeable batteries, the Cr, N-codoping TiO2 microspheres led to an enhanced performance of 159.6 mA h g-1 at 5 C with a drop of less than 1% after 300 cycles.

AB - Cr, N-codoped TiO2 mesoporous microspheres have been successfully synthesized by a facile hydrothermal reaction followed by annealing under an ammonia atmosphere. Through introduction of Cr, the nitrogen doping level was increased from 2.81 at.% for N-doped TiO2 to 5.68 at.% for Cr, N-codoped TiO2, which improves the electrical conductivity of TiO2. When used as an anode for lithium-ion rechargeable batteries, the Cr, N-codoping TiO2 microspheres led to an enhanced performance of 159.6 mA h g-1 at 5 C with a drop of less than 1% after 300 cycles.

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High performance Cr, N-codoped mesoporous TiO₂ microspheres for lithium-ion batteries

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