title: Experimental evidence of selective heating of molecules adsorbed in nanopores under microwave radiation.
abstract: We have performed in situ quasielastic neutron scattering (QENS) measurements on zeolite-guest systems under microwave irradiation, for comparison with corresponding simulations. Both experiment and simulation reveal selective heating of methanol in silicalite, but little to no heating of benzene in silicalite. Effective translational and rotational temperatures extracted from QENS data under microwave heating were found to depend on microwave power. In agreement with simulation, QENS rotational temperatures significantly exceed translational ones at high microwave power, thus providing the first microscopic proof for athermal effects in microwave-driven nanopores.
authors.affiliation: Université Lyon 1, CNRS, UMR 5256, IRCELYON, Institut de recherches sur la catalyse et l'environnement de Lyon, 2 Avenue Albert Einstein, F-69626 Villeurbanne, France. herve.jobic@ircelyon.univ-lyon1.fr
authors.forename: H
authors.initials: H
authors.lastname: Jobic
authors.forename: J E
authors.initials: JE
authors.lastname: Santander
authors.forename: W C
authors.initials: WC
authors.lastname: Conner
authors.forename: G
authors.initials: G
authors.lastname: Wittaker
authors.forename: G
authors.initials: G
authors.lastname: Giriat
authors.forename: A
authors.initials: A
authors.lastname: Harrison
authors.forename: J
authors.initials: J
authors.lastname: Ollivier
authors.forename: Scott M
authors.initials: SM
authors.lastname: Auerbach