期刊
RSC ADVANCES
卷 3, 期 48, 页码 26052-26058出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ra44731f
关键词
-
资金
- National Natural Science Foundation of China
- National Basic Research Program [2011CB808703, 2013CB934102]
Hierarchically structured titania materials composed of anatase nanoparticles have been prepared via a template-free light-driven fabrication route by employing titanium glycolate (TG) as a precursor. These materials are characterized by electron microscopy, X-ray powder diffraction, and nitrogen adsorption-desorption measurements. The lithium storage properties of the materials are evaluated by galvanostatic charge-discharge, cyclic voltammetry, and electrochemical impedance techniques. At a current density of 0.1 A g(-1), the initial lithium insertion/extraction capacities of the hierarchically structured titania reach 262 and 221 mA h g(-1), respectively. A discharge capacity of approximately 149 mA h g(-1) is retained after being cycled at 1.0 A g(-1) for 100 cycles, demonstrating the superior rate performance and high cycleability of the materials. The structural hierarchy featured by the well-defined morphology, high specific surface area, narrow pore size distribution, and high crystallinity has a significant influence on the electrochemical properties of the titania materials. The introduction of a hierarchical structure is envisaged as an efficient approach for the development of novel electrode materials for high performance lithium-ion batteries.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据