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  • Mesoporous ceria nanoparticles have, for the first time, been synthesized from cerium isopropoxide as precursor in a sol gel type process by controlled hydrolysis using reverse micelles. Water-filled reverse micelles have been facilitated by adding a non-ionic surfactant (TX-100) to an hydrophobic solvent (cyclohexane) above the critical micelle concentration. Parallel calcination studies under nitrogen or argon show similar data to each other emphasising the importance of oxygen in the removal of carbonaceous material from the gels. Thus, in the absence of atmospheric O2, oxygen is instead removed from the fluorite ceria phase which is believed to result in the formation of non-stoichiometric CeO(2-x). This causes loss of crystallisation of the fluorite CeO2 phase producing glassy material rather than nanoparticles and prevents porosity developing.
  • Mesoporous ceria nanoparticles have, for the first time, been synthesized from cerium isopropoxide as precursor in a sol gel type process by controlled hydrolysis using reverse micelles. Water-filled reverse micelles have been facilitated by adding a non-ionic surfactant (TX-100) to an hydrophobic solvent (cyclohexane) above the critical micelle concentration. Parallel calcination studies under nitrogen or argon show similar data to each other emphasising the importance of oxygen in the removal of carbonaceous material from the gels. Thus, in the absence of atmospheric O2, oxygen is instead removed from the fluorite ceria phase which is believed to result in the formation of non-stoichiometric CeO(2-x). This causes loss of crystallisation of the fluorite CeO2 phase producing glassy material rather than nanoparticles and prevents porosity developing. (en)
Title
  • The Production of Nanoparticulate Ceria Using Reverse Micelle Sol-Gel Techniques
  • The Production of Nanoparticulate Ceria Using Reverse Micelle Sol-Gel Techniques (en)
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  • The Production of Nanoparticulate Ceria Using Reverse Micelle Sol-Gel Techniques
  • The Production of Nanoparticulate Ceria Using Reverse Micelle Sol-Gel Techniques (en)
skos:notation
  • RIV/67985858:_____/09:00335776!RIV10-AV0-67985858
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(AV0Z40720504)
http://linked.open...iv/cisloPeriodika
  • 21
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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  • 336765
http://linked.open...ai/riv/idVysledku
  • RIV/67985858:_____/09:00335776
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • ceria; reverse micelles; alkoxide (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV
  • [AB2B6B0E9E6D]
http://linked.open...i/riv/nazevZdroje
  • Journal of Materials Chemistry
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
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http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 19
http://linked.open...iv/tvurceVysledku
  • Klusoň, Petr
  • Holliman, P.
  • Kalaji, M.
  • Mason, S.
http://linked.open...ain/vavai/riv/wos
  • 000266269300026
http://linked.open...n/vavai/riv/zamer
issn
  • 0959-9428
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