• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering >Synthesis, characterization and electrochemical properties of three-dimensionally ordered macroporous α-Fe_2O_3
【24h】

Synthesis, characterization and electrochemical properties of three-dimensionally ordered macroporous α-Fe_2O_3

机译：三维有序大孔α-Fe_2O_3的合成，表征及电化学性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Three-dimensionally ordered macroporous (3DOM)α-Fe_2O_3 electrode materials with large pore sizes and interconnected macroporous frameworks were successfully synthesized by a simply modified colloidal crystal templating strategy. The obtained samples were characterized by means of thermogravime-try, powder X-ray diffraction, nitrogen physisorption, scanning and transmission electron microscopy. The electrochemical properties of the 3DOM α-Fe_2O_3 were evaluated with cyclic voltammetry and discharge-charge experiments in an organic electrolyte containing a lithium salt. The results showed that the 3D0M α-Fe_2O_3 possessed a potential to be used as an anode material for lithium ion batteries with high initial discharge and charge capacities of 1883 and 1139 mAh g~(-1), respectively. After 60th cycle, the reversible capacity could still be as high as 681 mAh g~(-1) with a stable Coulombic efficiency of around 95%.
机译：通过简单的改进的胶体晶体模板化策略成功地合成了具有大孔径和互连的大孔骨架的三维有序大孔（3DOM）α-Fe_2O_3电极材料。所得样品通过热重分析，粉末X射线衍射，氮物理吸附，扫描和透射电子显微镜进行表征。在含有锂盐的有机电解质中，通过循环伏安法和放电实验对3DOMα-Fe_2O_3的电化学性质进行了评估。结果表明，3D0Mα-Fe_2O_3具有作为锂离子电池负极材料的潜力，其初始放电和充电容量分别为1883和1139 mAh g〜（-1）。在第60个循环后，可逆容量仍可高达681 mAh g〜（-1），库仑效率稳定在95％左右。

著录项

  • 来源
    《Materials Science and Engineering》 |2012年第18期|p.1612-1617|共6页
  • 作者

    Zhi Liu; Junhua Mi; Yuan Yang; Jia Li; Xiuli Tan;

  • 作者单位

    Institute of Chemistry for Functionalized Materials, Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, PR China;

    Institute of Chemistry for Functionalized Materials, Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, PR China;

    Institute of Chemistry for Functionalized Materials, Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, PR China;

    College of Chemistry, Jilin Normal University, Siping 136000, PR China;

    Institute of Chemistry for Functionalized Materials, Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, PR China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    3DOM; hematite; electrochemical properties; coulombic efficiency;

    机译：3DOM;赤铁矿电化学性能库仑效率;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号