Fabrication of mesoporous ZnO nanosheets from precursor templates grown in aqueous solutions

Keita Kakiuchi, Eiji Hosono, Toshio Kimura, Hiroaki Imai, Shinobu Fujihara

研究成果: Article

96 引用 (Scopus)

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Mesoporous ZnO nanosheets were successfully prepared by pyrolytic transformation of zinc carbonate hydroxide hydrate, Zn4CO 3(OH)6•H2O. The nanosheets were initially formed as assemblies on glass substrates during chemical bath deposition (CBD) in aqueous solutions of urea and zinc acetate dihydrate, zinc chloride, zinc nitrate hexahydrate, or zinc sulfate heptahydrate at 80°C. It was key to induce heterogeneous nucleation of Zn4CO3(OH) 6•H2O by promoting a gradual hydrolysis reaction of urea and controlling the degree of supersaturation of zinc hydroxide species. Morphology of Zn4CO3(OH)6•H2O was largely influenced by the anions present in the CBD solutions. The Zn 4CO3(OH)6•H2O nanosheets were transformed into wurtzite ZnO by heating at 300°C in air without losing the microstructural feature.

元の言語English
ページ(範囲)63-72
ページ数10
ジャーナルJournal of Sol-Gel Science and Technology
39
発行部数1 SPEC. ISS.
DOI
出版物ステータスPublished - 2006 7 1

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Biomaterials
  • Condensed Matter Physics
  • Materials Chemistry

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