...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >In-situ hydrothermal synthesis of three-dimensional Mn0_2-CNT nanocompositesand their electrochemical properties
【24h】

In-situ hydrothermal synthesis of three-dimensional Mn0_2-CNT nanocompositesand their electrochemical properties

机译：三维Mn0_2-CNT纳米复合材料的原位水热合成及其电化学性能

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-dimensional (3-D) Mn0_2-carbon nanotube (CNT) nanocomposites were prepared by a simple one-pot hydrothermal method. An electrode was then prepared with these nanocomposites. For comparativeinvestigation, Mn0_2 microspheres were also hydrothermally prepared without adding CNTs. The as-synthesized Mn0_2 microspheres were then mechanically mixed with CNTs to prepare a subsequentelectrode. The samples were characterized by electron microscopy, X-ray diffraction, and electrochemi-cal methods. It has been revealed that a 3-D conductive network of CNTs was formed with microspheresof Mn0_2 nanorods interwoven with and connected by CNTs. As a result, the hydrothermally mixed Mn0_2-CNT electrode showed a higher specific capacitance than the mechanically mixed electrode. Ithas therefore been concluded that the hydrothermal mixing method yields a more homogeneous prod-uct that is better suited to take full advantages of both the high capacitance of Mn0_2and the high electricalconductivity of CNTs. The 3-D Mn0_2-CNT nanocomposites reported herein have provided a promisingelectrode material for supercapacitors and other electrochemical energy storage/conversion devices.
机译：通过简单的一锅水热法制备了三维（3-D）Mn0_2-碳纳米管（CNT）纳米复合材料。然后用这些纳米复合材料制备电极。为了进行比较研究，在不添加碳纳米管的情况下，水热制备了Mn0_2微球。然后将合成后的Mn0_2微球与CNT机械混合以制备后续电极。通过电子显微镜，X射线衍射和电化学方法对样品进行表征。已经发现，由Mn0_2纳米棒的微球与CNT交织并连接而形成的CNT的3-D导电网络。结果，水热混合的Mn0_2-CNT电极显示出比机械混合的电极更高的比电容。因此可以得出结论，水热混合法产生的产物更加均匀，更适合充分利用Mn0_2的高电容和CNTs的高电导率的全部优势。本文报道的3-D MnO_2-CNT纳米复合材料为超级电容器和其他电化学能量存储/转换装置提供了有希望的电极材料。

著录项

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