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Pregled bibliografske jedinice broj: 256902

Preparation of a large Mesoporous CeO2 with crystalline walls using PMMA colloidal crystal templates


Wang, Tongwen; Sel, Ozlem; Djerdj, Igor; Smarsly, Bernd
Preparation of a large Mesoporous CeO2 with crystalline walls using PMMA colloidal crystal templates // Colloid and Polymer Science, 285 (2006), 1; 1-9 (međunarodna recenzija, članak, znanstveni)


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Naslov
Preparation of a large Mesoporous CeO2 with crystalline walls using PMMA colloidal crystal templates

Autori
Wang, Tongwen ; Sel, Ozlem ; Djerdj, Igor ; Smarsly, Bernd

Izvornik
Colloid and Polymer Science (0303-402X) 285 (2006), 1; 1-9

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
CeO2; Large mesostructure; Inverse opals; PMMA; Colloidal crystals

Sažetak
Inverse opals of crystalline CeO2 were synthesized by using close-packed poly (methyl methacrylate) (PMMA) latex spheres of various sizes as templates, resulting in pore sizes, which could be scaled down even to the mesopore region (30– 40 nm). The latex spheres were synthesized by emulsion polymerization, and the PMMA particle size could be substantially decreased by addition of sodium dodecyl sulfate (SDS) as surfactant. Owing to the larger pore wall thickness, the CeO2 with large mesopores preserves an intact porosity to higher temperatures than previously reported mesoporous CeO2 obtained from surfactant templates. The porosity and crystallinity were studied by microscopic techniques, wide angle X-ray diffraction (XRD), N2 sorption, and Hg porosimetry. The evolution of crystallinity (crystallite size and lattice parameters) was determined for different annealing temperatures by means of Rietveld refinements of the XRD data. Thereby, our study allowed getting general insights into the crystallization behavior of sol– gelling derived porous CeO2 frameworks.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
0119252

Ustanove
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Igor Đerđ (autor)

Citiraj ovu publikaciju

Wang, Tongwen; Sel, Ozlem; Djerdj, Igor; Smarsly, Bernd
Preparation of a large Mesoporous CeO2 with crystalline walls using PMMA colloidal crystal templates // Colloid and Polymer Science, 285 (2006), 1; 1-9 (međunarodna recenzija, članak, znanstveni)
Wang, T., Sel, O., Djerdj, I. & Smarsly, B. (2006) Preparation of a large Mesoporous CeO2 with crystalline walls using PMMA colloidal crystal templates. Colloid and Polymer Science, 285 (1), 1-9.
@article{article, year = {2006}, pages = {1-9}, keywords = {CeO2, Large mesostructure, Inverse opals, PMMA, Colloidal crystals}, journal = {Colloid and Polymer Science}, volume = {285}, number = {1}, issn = {0303-402X}, title = {Preparation of a large Mesoporous CeO2 with crystalline walls using PMMA colloidal crystal templates}, keyword = {CeO2, Large mesostructure, Inverse opals, PMMA, Colloidal crystals} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus





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