...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Reaction of hydrogen gas with C-60 at elevated pressure and temperature: Hydrogenation and cage fragmentation
【24h】

Reaction of hydrogen gas with C-60 at elevated pressure and temperature: Hydrogenation and cage fragmentation

机译：氢气与C-60在高压和高温下的反应：加氢和笼裂

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

Products of the reaction of C-60 with H-2 gas have been monitored by high-resolution atmospheric pressure photoionization Fourier transform ion cyclotron resonance mass spectrometry (APPI FT-ICR MS), X-ray diffraction, and IR spectroscopy as a function of hydrogenation period. Samples were synthesized at 673 K and 120 bar hydrogen pressure for hydrogenation periods between 300 and 5000 min, resulting in the formation of hydrofullerene mixtures with hydrogen content ranging from 1.6 to 5.3 wt %. Highly reduced C60Hx (x > 36-40) and products of their fragmentation were identified in these samples by APPI FT-ICR MS. A sharp change in structure was observed for samples with at least 5.0 wt % of hydrogen. Low-mass (300 - 500 Da) hydrogenation products not observed by prior field desorption (FD) FT-ICR MS were detected by APPI FT-ICR MS and their elemental compositions obtained for the first time. Synthetic and analytical fragmentation pathways are discussed.
机译：通过高分辨率大气压光电离傅里叶变换离子回旋共振质谱（APPI FT-ICR MS），X射线衍射和IR光谱，可以监测C-60与H-2气体的反应产物。氢化期。在673 K和120 bar的氢气压力下合成样品，氢化时间为300至5000分钟，从而形成氢含量为1.6至5.3 wt％的氢化富勒烯混合物。通过APPI FT-ICR MS在这些样品中鉴定出高度还原的C60Hx（x> 36-40）及其片段化产物。对于具有至少5.0重量％的氢的样品，观察到结构的急剧变化。通过APPI FT-ICR MS检测到未通过先前的场解析（FD）FT-ICR MS观察到的低质量（300-500 Da）加氢产物，并且首次获得了它们的元素组成。合成和分析碎片化途径进行了讨论。

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