title: Controlling the role of nanopore morphology in capillary condensation.
abstract: The effect of pore morphology on capillary condensation and evaporation in nanoporous silicon is studied experimentally. A variety of cooperative and local effects are observed in tailored nanopores with well-defined regions by directly probing gas adsorption in each region using optical interferometry. All observations are ascribed to the ability of the nanopore region to access the gas reservoir directly and the nucleation of liquid bridges at local heterogeneities within the nanopore region. These assumptions, consistent with recent simulations, can be extended to any real nanoporous system.
authors.affiliation: Physics Department, University of California-San Diego, La Jolla, California 92093, United States. f.casanova@nanogune.eu
authors.forename: Fèlix
authors.initials: F
authors.lastname: Casanova
authors.forename: Casey E
authors.initials: CE
authors.lastname: Chiang
authors.forename: Anne M
authors.initials: AM
authors.lastname: Ruminski
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Sailor
authors.forename: Ivan K
authors.initials: IK
authors.lastname: Schuller
mesh_terms: D000327:Adsorption; D007368:Interferometry; D058608:Nanopores; D036103:Nanotechnology / Q000379:methods*; D055620:Optical Phenomena; D012825:Silicon / Q000737:chemistry*; D014835:Volatilization
chemical_list: D012825:Silicon