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Morphological and Compositional Characterization of Self‐Preserved Gas Hydrates by Low‐Vacuum Scanning Electron Microscopy
Author(s) -
Ohno Hiroshi,
Nishimura Okio,
Suzuki Kiyofumi,
Narita Hideo,
Nagao Jiro
Publication year - 2011
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201100079
Subject(s) - dissociation (chemistry) , characterization (materials science) , scanning electron microscope , clathrate hydrate , hydrate , chemical physics , electron microscope , chemistry , crystallography , nanotechnology , analytical chemistry (journal) , materials science , physics , optics , organic chemistry , composite material
Unequal interactions: A backscattering electron microscopy study reveals that some Kr hydrates can be trapped in ice products during dissociation (see image) whereas no clear evidence of such a phenomenon is found for Ar samples. Also, the texture of ice from Ar‐hydrate decomposition is more cohesive than that observed for Kr samples. The different dissociation behavior between the two systems may be attributed to differences in the interaction between gas and water molecules.