Probing the alkyl ligands on silylated mesoporous MCM-41 using hyperpolarized129Xe NMR spectroscopy

Shing Jong Huang, Chin Hui Huang, Wen Hua Chen, Xianping Sun, Xizhi Zeng, Huang Kuei Lee, John A. Ripmeester, Chuan Yuan Mou, Shang Bin Liu

研究成果: 雜誌貢獻文章同行評審

18 引文 斯高帕斯(Scopus)

摘要

Variable-temperature hyperpolarized (HP) 129Xe NMR spectroscopy has been employed to characterize surface properties of mesoporous MCM-41 modified by silylation treatment. The characteristic chemical shifts responsible for Xe-surface interactions exhibit strong correlations with both the surface coverage and chain length of the grafted alkylsilanes. Consequently, the deshielding medium contribution due to individual alkyl ligand can be deduced based on the group contribution analysis revealing the potential use of HP 129Xe NMR for probing the surface properties of organic-functionalized porous materials.

原文英語
頁(從 - 到)681-684
頁數4
期刊Journal of Physical Chemistry B
109
發行號2
DOIs
出版狀態已發佈 - 1月 20 2005
對外發佈

ASJC Scopus subject areas

  • 物理與理論化學
  • 表面、塗料和薄膜
  • 材料化學

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