Role of positron annihilation lifetime studies and nuclear sensors for characterising porous materials

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dc.contributor.authorMume, Een_AU
dc.contributor.authorUedono, Aen_AU
dc.contributor.authorMizunaga, Gen_AU
dc.contributor.authorLynch, DEen_AU
dc.contributor.authorSmith, SVen_AU
dc.date.accessioned2011-03-30T23:14:31Zen_AU
dc.date.available2011-03-30T23:14:31Zen_AU
dc.date.issued2010-08-01en_AU
dc.date.statistics2010-08-01en_AU
dc.description.abstractA series of nuclear sensors were designed to assess the chemistry within the nanopores of a porous material. The nuclear sensors of varying size, charge, and hydrophobicity were exposed to hollow silica shells (HSS) at varying pH. Uptake and release kinetics were studied over a 24 h period at room temperature. Preliminary study indicate positively charged nuclear sensors were selectively and rapidly (within 10 min) absorbed by the HSS at pH 7 to 9. PALS showed there were two types of pores (1.7 and 0.7 nm) present. The data suggest the nuclear sensors sit within the larger pore of the HSS. Both PALS and nuclear sensors are required to obtain an accurate insight into the nanoporosity of the hollow silica shells.en_AU
dc.description.sponsorshipARC Centre for Antimatter-Matter Studies; Australian National University (ANU); Flinders University; James Cook University (JCU); The Institute of Physics; Australian Government Department of Innovation, Industry, Science and Researchen_AU
dc.identifier.articlenumber012040en_AU
dc.identifier.citationMume, E., Uedono, A., Mizunaga, G., Lynch, D. E., & Smith, S. V. (2010). Role of positron annihilation lifetime studies and nuclear sensors for characterising porous materials. Paper presented to the 12th International Workshop on Slow Positron Beam Techniques for Solids, Surfaces, Atoms and Molecules (SLOPOS12), 1st - 6th August 2010. All Seasons Resort: Magnetic Island, North Queensland, Australia. In Journal of Physics: Conference Series, 262(1), 012040. doi:10.1088/1742-6596/262/1/012040en_AU
dc.identifier.conferenceenddate6 August 2010en_AU
dc.identifier.conferencename12th International Workshop on Slow Positron Beam Techniques for Solids, Surfaces, Atoms and Molecules (SLOPOS12)en_AU
dc.identifier.conferenceplaceMagnetic Island, North Queenslanden_AU
dc.identifier.conferencestartdate1 August 2010en_AU
dc.identifier.govdoc3335en_AU
dc.identifier.issn1742-6588en_AU
dc.identifier.issue1en_AU
dc.identifier.journaltitleJournal of Physics: Conference Seriesen_AU
dc.identifier.urihttp://dx.doi.org/10.1088/1742-6596/262/1/012040en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/3167en_AU
dc.identifier.volume262en_AU
dc.language.isoenen_AU
dc.publisherInstitute of Physicsen_AU
dc.subjectPositronsen_AU
dc.subjectAnnihilationen_AU
dc.subjectSensorsen_AU
dc.subjectPorous materialsen_AU
dc.subjectParticle beamsen_AU
dc.subjectSilicaen_AU
dc.titleRole of positron annihilation lifetime studies and nuclear sensors for characterising porous materialsen_AU
dc.typeConference Paperen_AU
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