@conference {43382,
	title = {Molecular dynamics simulations of ch4 clathrate hydrate dissociation adjacent to hydrated silica surfaces},
	booktitle = {7th International Conference on Gas Hydrates},
	year = {2011},
	month = {JUL},
	abstract = {<p>We use molecular dynamics simulations to study the decomposition of structure I CH4 clathrate hydrate exposed to water. Simulations are performed for a hydrate + water system and two related cases with the hydrate adjacent to hydrate silica layers. The simulations are in the NVE adiabatic ensemble paying careful attention to the non-isothermal nature of the hydrate dissociation process. The effects of mass and energy transfer on the hydrate dissociation rate are studied. The effect of the silica surface on the dissociation rate and mechanism are studied. It is observed that the hydrate layer decomposes more quickly in simulations where it is in contact with silica. The implications on decomposition of the hydrate in hydrate reservoirs adjacent to sand sediments are discussed.</p>},
	author = {Bagherzadeh, A. and Englezos, Peter and Alavi, S. and Kumar, Rajnish and Ripmeester, John A.}
}
@article { ISI:000309208000024,
	title = {Ammonia clathrate hydrates as new solid phases for Titan, Enceladus, and other planetary systems},
	journal = {Proceedings of the National Academy of Sciences of the United States of America},
	volume = {109},
	number = {37},
	year = {2012},
	month = {SEP},
	pages = {14785-14790},
	publisher = {NATL ACAD SCIENCES},
	address = {2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA},
	abstract = {<p>There is interest in the role of ammonia on Saturn{\textquoteright}s moons Titan and Enceladus as the presence of water, methane, and ammonia under temperature and pressure conditions of the surface and interior make these moons rich environments for the study of phases formed by these materials. Ammonia is known to form solid hemi-, mono-, and dihydrate crystal phases under conditions consistent with the surface of Titan and Enceladus, but has also been assigned a role as water-ice antifreeze and methane hydrate inhibitor which is thought to contribute to the outgassing of methane clathrate hydrates into these moons{\textquoteright} atmospheres. Here we show, through direct synthesis from solution and vapor deposition experiments under conditions consistent with extraterrestrial planetary atmospheres, that ammonia forms clathrate hydrates and participates synergistically in clathrate hydrate formation in the presence of methane gas at low temperatures. The binary structure II tetrahydrofuran + ammonia, structure I ammonia, and binary structure I ammonia + methane clathrate hydrate phases synthesized have been characterized by X-ray diffraction, molecular dynamics simulation, and Raman spectroscopy methods.</p>},
	keywords = {ethane, hydrate inhibitors, hydrogen bonding, ice, single crystal X-ray diffraction},
	issn = {0027-8424},
	doi = {10.1073/pnas.1205820109},
	author = {Shin, Kyuchul and Kumar, Rajnish and Udachin, Konstantin A. and Alavi, Saman and Ripmeester, John A.}
}
@article {43381,
	title = {Multiple H2 occupancy of cages of clathrate hydrate under mild condition},
	journal = {Journal of the American Chemical Society},
	volume = {134},
	year = {2012},
	month = {MAY},
	pages = {9160 - 9162},
	abstract = {Experiments were carried out by reacting H(2) gas with N(2) hydrate at a temperature of 243 K and a pressure of 15 MPa. The characterizations of the reaction products indicated that multiple H(2) molecules can be loaded into both large and small cages of structure II clathrate hydrates. The realization of multiple H(2) occupancy of hydrate cages under moderate conditions not only brings new insights into hydrogen clathrates but also refreshes the perspective of clathrate hydrates as hydrogen storage media.},
	doi = {10.1021/ja303222u},
	author = {Lu, Hailong and Wang, Jianwei and Liu, Changling and Ratcliffe, Christopher I. and Becker, Udo and Kumar, Rajnish and Ripmeester, John A.}
}
@article { ISI:000313913300036,
	title = {Low-pressure synthesis and characterization of hydrogen-filled ice ic},
	journal = {Angewandte Chemie-International Edition},
	volume = {52},
	number = {5},
	year = {2013},
	month = {DEC},
	pages = {1531-1534},
	publisher = {WILEY-V C H VERLAG GMBH},
	address = {BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY},
	keywords = {Clathrates, cubic ice, hydrates, Hydrogen},
	issn = {1433-7851},
	doi = {10.1002/anie.201208367},
	author = {Kumar, Rajnish and Klug, Dennis D. and Ratcliffe, Christopher I. and Tulk, Christopher A. and Ripmeester, John A.}
}
