title: Clathrate-formation mediated adsorption of methane on Cu-complex crystals.
abstract: We measured adsorption and desorption isotherms of methane on [Cu(4, 4'-bipyridine)2(BF4)2] (LPC) at 258, 273, and 303 K. Adsorption proceeds almost vertically at a definite pressure, which is named gate pressure. The lower the measurement temperature, the smaller the gate pressure. The temperature dependence of the gate pressure is expressed by the Clapeyron-Clausius equation, giving a thermodynamic evidence on the clathrate formation between the Cu complex and methane.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Noguchi
authors.forename: Atsushi
authors.initials: A
authors.lastname: Kondoh
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Hattori
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Kanoh
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Kajiro
authors.forename: Katsumi
authors.initials: K
authors.lastname: Kaneko