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DTSTAMP:20260412T215505
DTSTART:20161020T140000
SEQUENCE:0
TRANSP:OPAQUE
DTEND:20161020T153000
URL:https://murmitoyen.com/events/vanille/udem/detail/717382-conference-de-
 la-professeure-emilie-ringe-rice-university
LOCATION:Université de Montréal - Pavillon J.-Armand-Bombardier\, 5155\, 
 chemin de la rampe \, Montréal\, QC\, Canada\, H3T 2B2
SUMMARY:Conférence de la Professeure Emilie Ringe (Rice University)
DESCRIPTION:Titre :Combining Plasmonic and Catalytic Metals for Functional 
 Nanomaterials
\nEndroit : Pavillon J.-Armand Bombardier\, salle 1035 à
  14 hHôte : Jean-François Masson
\nCette conférence sera prononcée (
 en anglais) par la Professeure Emilie Ringe du Department of Materials
  Science and NanoEngineering de l'Université Rice.
\nRésumé:The catalyt
 ic and optical properties of metal nanoparticles can be combined to create
  platforms for light-driven chemical energy storage and enhanced in-situ r
 eaction monitoring. However\, the heavily damped plasmon resonances of man
 y catalytically active metals (e.g.\, Pt\, Pd) prevent this dual functiona
 lity in pure nanostructures. The addition of catalytic metals at or close 
 to the surface of efficient plasmonic particles thus presents a unique opp
 ortunity if the resonances can be conserved after coating.
\nHere\, electr
 on-based techniques (electron-energy loss\, cathodoluminescence\, and ener
 gy dispersive X-ray spectroscopy) are used to characterize bimetallic syst
 ems such as Au/Pd octopods\, Pt-decorated Au prisms\, and Pd-decorate Al n
 anocrystals. We show that these plasmonic nanomaterials incorporating cata
 lytically active but heavily damped metals sustain multiple size-dependent
  LSPRs that are strongly localized at the particle tips or edges\, dependi
 ng on the mode energy. Tomography and composition mapping unravels the ava
 ilability of catalytic metal at the surface of the nanoparticles\, and cat
 alytic studies unravel their potential as light-enhanced catalysts.
\nInfo
 rmation supplémentaireAnnonce PDF de la conférence
\n
\n 
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