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

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

doi:10.1007/s10971-006-6321-6

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

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

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

122 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	63-72
Number of pages	10
Journal	Journal of Sol-Gel Science and Technology
Volume	39
Issue number	1 SPEC. ISS.
DOIs	https://doi.org/10.1007/s10971-006-6321-6
Publication status	Published - 2006 Jul

Keywords

Chemical bath deposition
Mesoporosity
Nanostructure
ZnO

ASJC Scopus subject areas

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

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title = "Fabrication of mesoporous ZnO nanosheets from precursor templates grown in aqueous solutions",

abstract = "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.",

keywords = "Chemical bath deposition, Mesoporosity, Nanostructure, ZnO",

author = "Keita Kakiuchi and Eiji Hosono and Toshio Kimura and Hiroaki Imai and Shinobu Fujihara",

note = "Funding Information: Acknowledgment This work was supported by Keio Gijuku Fukuzawa Memorial Fund for the Advancement of Education and Research.",

year = "2006",

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doi = "10.1007/s10971-006-6321-6",

language = "English",

volume = "39",

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AU - Kakiuchi, Keita

AU - Hosono, Eiji

AU - Kimura, Toshio

AU - Imai, Hiroaki

AU - Fujihara, Shinobu

N1 - Funding Information: Acknowledgment This work was supported by Keio Gijuku Fukuzawa Memorial Fund for the Advancement of Education and Research.

PY - 2006/7

Y1 - 2006/7

N2 - 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.

AB - 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.

KW - Chemical bath deposition

KW - Mesoporosity

KW - Nanostructure

KW - ZnO

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ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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