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New Porous Heterostructures Based on Organo-Modified Graphene Oxide for CO(2)Capture

Thomou, E., Diamanti, E. K., Enotiadis, A., Spyrou, K., Mitsari, E., Boutsika, L. G., Sapalidis, A., Moreton Alfonsin, E., De Luca, O., Gournis, D. & Rudolf, P., 17-Sep-2020, In : Frontiers in Chemistry. 8, 11 p., 564838.

Research output: Contribution to journalArticleAcademicpeer-review

  • Eleni Thomou
  • Evmorfia K. Diamanti
  • Apostolos Enotiadis
  • Konstantinos Spyrou
  • Efstratia Mitsari
  • Lamprini G. Boutsika
  • Andreas Sapalidis
  • Estela Moreton Alfonsin
  • Oreste De Luca
  • Dimitrios Gournis
  • Petra Rudolf

In this work, we report on a facile and rapid synthetic procedure to create highly porous heterostructures with tailored properties through the silylation of organically modified graphene oxide. Three silica precursors with various structural characteristics (comprising alkyl or phenyl groups) were employed to create high-yield silica networks as pillars between the organo-modified graphene oxide layers. The removal of organic molecules through the thermal decomposition generates porous heterostructures with very high surface areas (>= 500 m(2)/g), which are very attractive for potential use in diverse applications such as catalysis, adsorption and as fillers in polymer nanocomposites. The final hybrid products were characterized by X-ray diffraction, Fourier transform infrared and X-ray photoelectron spectroscopies, thermogravimetric analysis, scanning electron microscopy and porosity measurements. As proof of principle, the porous heterostructure with the maximum surface area was chosen for investigating its CO(2)adsorption properties.

Original languageEnglish
Article number564838
Number of pages11
JournalFrontiers in Chemistry
Volume8
Publication statusPublished - 17-Sep-2020

    Keywords

  • organosilica, graphene oxide, pillaring, hybrid structures, porous heterostructures, sorbents, CO(2)capture, SELF-ASSEMBLED MONOLAYERS, GRAPHITE OXIDE, PILLARED CARBONS, CO2 ADSORPTION, SUPERCAPACITOR ELECTRODES, HYDROGEN STORAGE, WATER-RETENTION, THIN-FILMS, CLAY, NANOCOMPOSITES

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