title: Krypton Adsorption on Zeolite-Templated Carbon and Anomalous Surface Thermodynamics.
abstract: Krypton adsorption was measured at eight temperatures between 253 and 433 K on a zeolite-templated carbon and two commercial carbons. The data were fitted using a generalized Langmuir isotherm model and thermodynamic properties were extracted. Differing from that on commercial carbons, krypton adsorption on the zeolite-templated carbon is accompanied by an increasing isosteric enthalpy of adsorption, rising by up to 1.4 kJ mol(-1) as a function of coverage. This increase is a result of enhanced adsorbate-adsorbate interactions promoted by the ordered, nanostructured surface of the adsorbent. An assessment of the strength and nature of these adsorbate-adsorbate interactions is made by comparing the measured isosteric enthalpies of adsorption (and other thermodynamic quantities) to fundamental metrics of intermolecular interactions of krypton and other common gases.
authors.affiliation: W. M. Keck Laboratory, California Institute of Technology, 138-78, Pasadena, California 91125, United States.
authors.forename: Maxwell
authors.initials: M
authors.lastname: Murialdo
authors.affiliation: W. M. Keck Laboratory, California Institute of Technology, 138-78, Pasadena, California 91125, United States.
authors.forename: Nicholas P
authors.initials: NP
authors.lastname: Stadie
authors.affiliation: W. M. Keck Laboratory, California Institute of Technology, 138-78, Pasadena, California 91125, United States.
authors.forename: Channing C
authors.initials: CC
authors.lastname: Ahn
authors.affiliation: W. M. Keck Laboratory, California Institute of Technology, 138-78, Pasadena, California 91125, United States.
authors.forename: Brent
authors.initials: B
authors.lastname: Fultz