期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 1, 期 6, 页码 2307-2312出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ta00855f
关键词
-
资金
- National Natural Science Foundation of China [51172205, 51002138]
- Natural Science Foundation of Zhejiang Province [Y4092023, Y4090420, Y4110523]
- Qianjiang Project of Zhejiang Province [2010R10029]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars [2010609]
- foundation of Science and Technology Department of Zhejiang Province [2011C21009]
- New Century Excellent Talents in University [NCET 111079]
Hollow alpha-Fe2O3 microcubes were fabricated by a facile hydrothermal method in an ethanol-water co-solvent system. The as-synthesized microcubes have a uniform size with an edge length of about 1.5 mu m. Time and solvent proportion dependent experiments reveal that the ethanol adsorption and surface-protected etching mechanisms play key roles in the formation hollow cubic structures. Compared with their solid counterparts, hollow alpha-Fe2O3 microcubes show an enhanced electrochemical performance in terms of long-term cycling (458 mA h g(-1) at a current density of 100 mA g(-1) after 100 cycles) and high rate capability (859, 855, 688 and 460 mA h g(-1) at current densities of 100, 200, 500 and 1000 mA g(-1), respectively). These remarkable electrochemical properties can be attributed to the unique hollow microstructure, which could retain structural stability, relieve stress and increase reaction areas.
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