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Issue 45, 2016, Issue in Progress
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Facile synthesis of a mesostructured TiO2–graphitized carbon (TiO2–gC) composite through the hydrothermal process and its application as the anode of lithium ion batteries

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Abstract

A mesostructured TiO2–graphitic carbon (TiO2–gC) composite was synthesized through a simple and scalable hydrothermal method to be employed as an anode material in Li-ion batteries. In a wide voltage range (0.0–2.5 V), the TiO2–gC composite anode possesses a high initial lithiation capacity (598 mA h g−1) at 0.1 C (1 C: 150 mA g−1), and it still retains 369 mA h g−1 after 50 cycles at 0.5 C. Furthermore, under a high current density of 2 C, the TiO2–gC anode exhibits stable capacity (252 mA h g−1) retention for up to 200 cycles. This excellent electrochemical performance could be ascribed to a synergistic effect of well-developed mesoporosity with a high surface area (345.4 m2 g−1), the conductive graphitic carbon wall, and uniformly dispersed TiO2 nanoparticles, resulting in improved Li+ penetration, fast electron transport and high structural stability during cycling.

Graphical abstract: Facile synthesis of a mesostructured TiO2–graphitized carbon (TiO2–gC) composite through the hydrothermal process and its application as the anode of lithium ion batteries

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Article information


Submitted
19 Jan 2016
Accepted
10 Apr 2016
First published
11 Apr 2016

RSC Adv., 2016,6, 39484-39491
Article type
Paper

Facile synthesis of a mesostructured TiO2–graphitized carbon (TiO2–gC) composite through the hydrothermal process and its application as the anode of lithium ion batteries

H. Sohn, D. Kim, J. Lee and S. Yoon, RSC Adv., 2016, 6, 39484
DOI: 10.1039/C6RA01614F

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