Amorphous carbon-coated TiO2 nanocrystals for improved lithium-ion battery and photocatalytic performance
Amorphous carbon-coated TiO2 nanocrystals for improved lithium-ion battery and photocatalytic performance
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DOI：
10.1016/j.nanoen.2014.03.012
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发表时间：
2014-05-01
期刊：
影响因子：
17.6
通讯作者：
Chen, Xiaobo
中科院分区：
文献类型：
--
作者：
Xia, Ting;Zhang, Wei;Chen, Xiaobo
10-在TiO2纳米晶表面包覆一层无定形碳后，其锂速率提高了1倍，光催化性能提高了4倍。增强的性能可以归因于较低的锂离子扩散和电子传导电阻穿过碳层进入TiO 2电极材料和更好的表面吸附的染料分子和离子。因此，目前的研究可能会为我们提供一种替代的方法，在提高性能的二氧化钛纳米晶体在锂离子电池和电池应用。(C)2014爱思唯尔有限公司版权所有。
10-time lithium rate improvement and 4-time photocatalytic performance enhancement have been achieved with TiO2 nanocrystals when coated with a thin layer of amorphous carbon. The enhanced performances can be attributed to lower lithium ion diffusion and electronic conduction resistance across the carbon layer into the TiO2 electrode material and better surface adsorption of the dye molecules and ions. Thus, the current study may provide us an alternative approach in improving the performances of TiO2 nanocrystals in both lithium ion battery and photocatalysis applications. (C) 2014 Elsevier Ltd. All rights reserved.