• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nanotechnology >Nano-architectures of ordered hollow carbon spheres filled with carbon webs by template-free controllable synthesis
【24h】

Nano-architectures of ordered hollow carbon spheres filled with carbon webs by template-free controllable synthesis

机译：无模板可控合成的碳纤维填充的有序空心碳球的纳米结构

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

Hollow carbon spheres with a carbon network structure inside have been synthesized in the absence of templates for the first time. The samples were characterized by scanning electron microscopy, transmission electron microscopy, x-ray diffraction, N _2 adsorption-desorption, and thermogravimetric analyses. The experimental results indicate that the core and the shell of this new structure contain both mesopores and micropores. Furthermore, the inner space and thickness of the hollow carbon spheres can be controlled by adjusting the molar ratio of the glucose and Na _2SnO _3H _2O. Moreover, a possible formation mechanism has been suggested on the basis of time-dependent experiments. The electrocatalytic activity of methanol oxidation on Pt supported on HC electrocatalyst (Pt/HC@C) is 1.8 times higher than that of Pt supported on commercial Vulcan XC-72 carbon (Pt/C) electrocatalyst at the same Pt loadings.
机译：在没有模板的情况下，首次合成了内部具有碳网络结构的空心碳球。通过扫描电子显微镜，透射电子显微镜，X射线衍射，N _2吸附-解吸和热重分析对样品进行表征。实验结果表明，这种新结构的核和壳同时包含中孔和微孔。此外，可以通过调节葡萄糖与Na _2SnO _3H _2O的摩尔比来控制中空碳球的内部空间和厚度。此外，基于时间的实验已经提出了可能的形成机理。在相同的Pt负载量下，甲醇氧化对HC电催化剂负载的Pt（Pt / HC @ C）的电催化活性是商业Vulcan XC-72碳（Pt / C）电催化剂负载的Pt的1.8倍。

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