Superoxide ions entrapped in water cages of ionic clathrate hydrates.
In the present work, we first described the stable entrapment of the superoxide ions in gamma-irradiated (Me(4)NOH + O(2)) clathrate hydrate. Owing to peculiar direct guest-guest ionic interaction, the lattice structure of gamma-irradiated (Me(4)NOH + O(2)) clathrate hydrate shows significant change of lattice contraction behavior even at relatively high temperature (120 K). Such findings are expected to provide useful information for a better understanding of unrevealed nature (such as icy nanoreactor concept, ice-based functional material synthesis and lattice tuning by specific ionic guests) of clathrate hydrate fields.
Cha
Minjun
M
Department of Chemical and Biomolecular Engineering (BK21 program) and Graduate School of EEWS, Korea Advanced Institute of Science and Technology, 335 Gwahangno, Yuseong-gu, Daejeon 305-701, Republic of Korea.
Shin
Kyuchul
K
Kwon
Minchul
M
Koh
Dong-Yeun
DY
Sung
Boram
B
Lee
Huen
H