Spinel lithium titanate from brookite nanocrystallites

作者：Meng, Xiangdong^*; Wang, Xiaocen; Zhou, Yuxue; Tong, Ling; Zeng, Xianghua; Chen, Xiaobing

来源：Ceramics International, 2014, 40(3): 4989-4993.

DOI：10.1016/j.ceramint.2013.08.054

• Powders: chemical preparation
• X-ray methods
• Li4Ti5O12
• Batteries

Spinel lithium titanate nanoparticles have been synthesized using anatase and brookite nanocrystallites, as precursors. The corresponding products, A- and B-Li4Ti5O12 nanoparticles, have distinct differences in the optical absorption property, electrochemical performance and photocatalytic activity. The UV-vis absorption spectrum of B-Li4Ti5O12 nanoparticles shows strong and wide absorption in the ultraviolet and visible region. B-Li4Ti5O12 nanoparticles from brookite exhibit a higher discharge capacity than A-Li4Ti5O12 from anatase. The charge discharge cycle stability for two types of Li4Ti5O12 nanoparticles is excellent. Besides, B-Li4Ti5O12 nanoparticles have much higher photocatalytic activity in the degradation of pollutant CHCl3 than A-Li4Ti5O12.

• 出版日期2014-4
• 单位扬州大学