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Influence of synthesis procedure on the formation and propreties of zinc oxide (CROSBI ID 93852)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Musić, Svetozar ; Popović, Stanko ; Maljković, Miroslava ; Dragčević, Đurđica Influence of synthesis procedure on the formation and propreties of zinc oxide // Journal of alloys and compounds, 347 (2002), 1-2; 324-332-x

Podaci o odgovornosti

Musić, Svetozar ; Popović, Stanko ; Maljković, Miroslava ; Dragčević, Đurđica

engleski

Influence of synthesis procedure on the formation and propreties of zinc oxide

Formation and properties of zinc oxide were investigated in dependence on the synthesis procedure. Zinc oxide did not crystallize upon hydrothermal treatment of Zn(NO3)2 aqueous solutions containing urea, up to 160 oC. Hydrozincite was formed instead. Changes in the XRD patterns and FT-IR spectra were interpreted in terms of stacking disorder in hydrozincite crystals. Zinc oxide powder was obtained by thermal treatment in air of precipitated hydrozincite. The conditions for instantaneous synthesis of very fine zinc oxide particles were found. This procedure is based on addition of TMAH (tetramethylammonium hydroxide) solution to an ethanolic solution of zinc acetate dihydrate, up to pH~14. On the other hand, addition of an equivalent volume of water to the ethanolic solution of zinc acetate dihydrate, prior to the addition of TMAH solution up to pH~14, yielded ZnO flakes without any specific shape. All zinc oxide particles produced upon heating at 600 oC in air showed similar morphology and tendency to aggregation due to the sintering effect. The features of the FT-IR spectra of zinc oxide particles were related to their shapes.

Oxide materials; Chemical synthesis; FT-IR spectroscopy

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Podaci o izdanju

347 (1-2)

2002.

324-332-x

objavljeno

0925-8388

Povezanost rada

Fizika, Kemija

Indeksiranost