Synthesis and Characterization of β-PbO2Nanorods and Pb3O4Nanocrystallites

Abstract

Abstract: Phase pure β-PbO₂nanorods with diameter of 10-20 nm and length up to 400 nm with an aspect ratio >20 were synthesized through direct oxidation of Pb(Ac)₂by NaClOunder alkaline conditions. The obtained β-PbO₂nanorods were then decomposed at 420 ℃ to produce Pb₃O₄nanocrystals with crystallite size ～20 nm. The reaction conditions were optimized on the basis of detailed investigations of the influences of reaction temperature, time, concentraion of NaClO, and pHon the products. Powder X-ray diffraction(XRD) and transmission electron microscope were employed for the characterization of the structure, compositions and morphology of the obtained nanocrystalline products.

Key words: Nanorod, Nanocrystal, β－PbO₂, Pb₃O₄

CLC Number:

O612.4

TrendMD:

ZHUANG Jing, DENG Zhao-Xiang, LIANG Jia-He, LI Ya-Dong. Synthesis and Characterization of β-PbO₂Nanorods and Pb₃O₄Nanocrystallites[J]. Chem. J. Chinese Universities, 2002, 23(7): 1223.

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Synthesis and Characterization of β-PbO₂Nanorods and Pb₃O₄Nanocrystallites

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