Encapsulation kinetics and dynamics of carbon monoxide in clathrate hydrate.

ABSTRACT: Carbon monoxide clathrate hydrate is a potentially important constituent in the solar system. In contrast to the well-established relation between the size of gaseous molecule and hydrate structure, previous work showed that carbon monoxide molecules preferentially form structure-I rather than structure-II gas hydrate. Resolving this discrepancy is fundamentally important to understanding clathrate formation, structure stabilization and the role the dipole moment/molecular polarizability plays in these processes. Here we report the synthesis of structure-II carbon monoxide hydrate under moderate high-pressure/low-temperature conditions. We demonstrate that the relative stability between structure-I and structure-II hydrates is primarily determined by kinetically controlled cage filling and

SUBMITTER: Zhu J 

PROVIDER: S-EPMC4082632 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature