Characterization of MMoO4 (M=Ba, Sr and Ca) with different morphologies prepared using a cyclic microwave radiation

被引：124

作者：

Thongtem, Titipun ^{[1
]}

Phuruangrat, Anukom ^{[2
]}

Thongtem, Somchal ^{[2
]}

机构：

[1] Chiang Mai Univ, Fac Sci, Dept Chem, Chiang Mai 50200, Thailand

[2] Chiang Mai Univ, Fac Sci, Dept Phys, Chiang Mai 50200, Thailand

来源：

MATERIALS LETTERS | 2008年 / 62卷 / 03期

关键词：

cyclic microwave radiation; bi-pyramidal BaMoO4; nano-sized SrMoO4; nano-sized CaMoO4;

D O I：

10.1016/j.matlet.2007.05.059

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Scheelite molybdates (MMoO4, M=Ba, Sr and Ca) were successfully prepared by the reactions of M(NO3)(2)center dot 2H(2)O and Na2MoO4 center dot 2H(2)O in propylene glycol and NaOH using a microwave radiation. The phases were detected using XRD and SAED. TEM analysis revealed the presence of micro-sized bi-pyramids with a square base, nano-sized particles in clusters, and dispersed nano-sized particles for BaMoO4, SrMoO4 and CaMoO4, respectively. Diffraction patterns of the bi-pyramids were simulated, and are in accord with the experimental results. Raman and FTIR MoO2- spectra provide the evidence of scheelite structure with Mo-O stretching vibration in 4 tetrahedrons at 742-901 cm(-1). (c) 2007 Elsevier B.V. All rights reserved.

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页码：454 / 457

页数：4

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