High surface area alumina-supported nickel (II) oxide aerogels using epoxide addition method

Simerjeet K. Gill, Preston Brown, Mobolaji Tayo Ogundiya, Louisa J. Hope-Weeks

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Nickel (II) oxide aerogels with an amorphous alumina support were synthesized by the expoxide addition method. The monoliths were obtained by adding propylene oxide to an alcoholic solution of hydrated metal nitrate salts. The wet gels were dried by supercritical extraction to produce porous monolithic aerogels. The as-synthesized aerogels were amorphous containing aluminum and nickel hydroxides. Annealing of the as-synthesized aerogels at 400 °C yields crystalline nickel oxide materials which retain the high surface areas (>160 m2/g) and porosities of the original aerogels. The resultant aerogel materials were characterized using powder X-ray diffraction, thermo-gravimetric analysis, scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray analysis, and nitrogen adsorption/ desorption analysis.

Original languageEnglish
Pages (from-to)635-640
Number of pages6
JournalJournal of Sol-Gel Science and Technology
Volume53
Issue number3
DOIs
StatePublished - Mar 2010

Keywords

  • Aerogel
  • Epoxide
  • Nickel-oxide
  • Sol-gel

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