title: Heterogeneous melting of methane confined in nano-pores.
abstract: The melting transition of methane adsorbed in nanopores has been studied and compared in two types of structures: carbon slits pores and square shaped channels. We show that the nano-confinement not only modifies the temperatures of phase transformation but also induces strong space heterogeneity of the adsorbate. We emphasize the role of the structural heterogeneity on the mechanism of melting: in nanometric pores, each adsorbed layer exhibits different mechanisms of structural transformation and the notion of a unique transition temperature is not well defined.
authors: Aix Marseille Université, CNRS, MADIREL (UMR 7246), 13397 Marseille, France.
authors: E
authors: E
authors: Dundar
authors: Aix Marseille Université, CNRS, MADIREL (UMR 7246), 13397 Marseille, France.
authors: P
authors: P
authors: Boulet
authors: Department of Physics and Astronomy, University of Missouri, Columbia, Missouri 65211, USA.
authors: C
authors: C
authors: Wexler
authors: Laboratoire Charles Coulomb (L2C), UMR5221, Université de Montpellier, 34095 Montpellier, France.
authors: L
authors: L
authors: Firlej
authors: Aix Marseille Université, CNRS, MADIREL (UMR 7246), 13397 Marseille, France.
authors: Ph
authors: P
authors: Llewellyn
authors: Aix Marseille Université, CNRS, MADIREL (UMR 7246), 13397 Marseille, France.
authors: B
authors: B
authors: Kuchta