• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Large-scale synthesis and characterization of super-bundle single-walled carbon nanotubes by water-assisted chemical vapor deposition
【24h】

Large-scale synthesis and characterization of super-bundle single-walled carbon nanotubes by water-assisted chemical vapor deposition

机译：水辅助化学气相沉积法大规模合成超束单壁碳纳米管及其表征

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

A large-scale synthesis of water-assisted single-walled carbon nanotubes (SWCNTs) was investigated over Fe-Mo/MgO catalysts by catalytic chemical vapor deposition of ethylene. Introduction of water vapor into a reactor induced super-bundle SWCNTs (SB-SWCNTs) and dramatically improved the product yield of SWCNTs from 40 to 206 wt%. By adding water vapor, the average diameter of the SB-SWCNTs was increased from 1.5 to 3.0 nm and distribution of the diameter became wider. The Raman peak intensity ratio (I-G/I-D) of the SWCNTs, which indicates the crystallinity and defect degree of SWCNTs, showed an almost constant value of 8 regardless of water vapor concentration. The possible growth mechanism of SB-SWCNTs was discussed.
机译：在Fe-Mo / MgO催化剂上，通过乙烯的催化化学气相沉积，研究了水辅助单壁碳纳米管（SWCNT）的大规模合成。将水蒸气引入反应器中引起的超束SWCNT（SB-SWCNT），并将SWCNT的产物产率从40重量％提高至206重量％。通过添加水蒸气，SB-SWCNT的平均直径从1.5nm增加到3.0nm，并且直径的分布变宽。 SWCNT的拉曼峰强度比（I-G / I-D）表示SWCNT的结晶度和缺陷程度，无论水蒸气浓度如何，其拉曼峰强度比几乎都为8。讨论了SB-SWCNTs可能的生长机理。

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