Spectroscopic observation of H2 migration in structure-I clathrate hydrate

Sukjeong Choi, Kyuchul Shin, Jong Ho Cha, Huen Lee

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

We demonstrate the spectroscopic observation of H2 migration in the binary structure-I (sI) clathrate hydrate. The H2 molecules captured into sI small cage (sI-S) at lower temperature migrate to sI large cage (sI-L) through shared pentagonal face of 51262 cage. The hexagonal faces of 51262 cage provide the windows essential for creating continuous diffusion paths for H2 molecules. It is essential to realize that the vacant channels formed by the linkage of specific cages can play an important role in guest diffusion pathways and occupancy occurring in a complex clathrate hydrate matrix.

Original languageEnglish
Pages (from-to)1397-1400
Number of pages4
JournalKorean Journal of Chemical Engineering
Volume25
Issue number6
DOIs
StatePublished - Nov 2008

Keywords

  • Clathrate hydrate
  • H migration
  • Inclusion compounds
  • NMR
  • Water chemistry

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