Aqueous sol-gel synthesis and thermoanalytical study of the alkaline earth molybdate precursors

Gediminas Braziulis; Gytautas Janulevicius; Ruta Stankeviciute; Arturas Zalga

doi:10.1007/s10973-013-3579-0

Aqueous sol-gel synthesis and thermoanalytical study of the alkaline earth molybdate precursors

Gediminas Braziulis
, Gytautas Janulevicius
, Ruta Stankeviciute
, Arturas Zalga^*

^*Corresponding author for this work

Vilnius University

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

21 Citations (Scopus)

Abstract

The preparation and characterization of the M-Mo-O nitrate-tartrate (M = Mg, Ca, Sr, and Ba) gels, which were produced by the simple aqueous sol-gel method and calcined at 500, 600, 700, 800, 900, and 1,000 °C temperatures are reported. The crystalline alkaline earth metal molybdates (MgMoO₄, CaMoO₄, SrMoO₄, and BaMoO₄) and as-prepared M-Mo-O nitrate-tartrate gels investigated by thermal analysis (TG/DSC), X-ray diffraction (XRD), and scanning electron microscopy (SEM). TG/DSC analysis showed the possible decomposition mechanism of synthesized gels. XRD studies allowed the identification of main types of crystalline structures in the MgMoO₄, CaMoO₄, SrMoO₄, and BaMoO₄ systems. Moreover, SEM analysis revealed the changes of surface morphology of the final compounds depending on annealing temperatures.

Original language	English
Pages (from-to)	613-621
Number of pages	9
Journal	Journal of Thermal Analysis and Calorimetry
Volume	118
Issue number	2
DOIs	https://doi.org/10.1007/s10973-013-3579-0
Publication status	Published - 13 Dec 2013
Externally published	Yes

Keywords

Alkaline earth metals
Sol-gel processing
Thermal analysis

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@article{62db150e0268463692997f3a566cbc59,

title = "Aqueous sol-gel synthesis and thermoanalytical study of the alkaline earth molybdate precursors",

abstract = "The preparation and characterization of the M-Mo-O nitrate-tartrate (M = Mg, Ca, Sr, and Ba) gels, which were produced by the simple aqueous sol-gel method and calcined at 500, 600, 700, 800, 900, and 1,000 °C temperatures are reported. The crystalline alkaline earth metal molybdates (MgMoO4, CaMoO4, SrMoO4, and BaMoO4) and as-prepared M-Mo-O nitrate-tartrate gels investigated by thermal analysis (TG/DSC), X-ray diffraction (XRD), and scanning electron microscopy (SEM). TG/DSC analysis showed the possible decomposition mechanism of synthesized gels. XRD studies allowed the identification of main types of crystalline structures in the MgMoO4, CaMoO4, SrMoO4, and BaMoO4 systems. Moreover, SEM analysis revealed the changes of surface morphology of the final compounds depending on annealing temperatures.",

keywords = "Alkaline earth metals, Sol-gel processing, Thermal analysis",

author = "Gediminas Braziulis and Gytautas Janulevicius and Ruta Stankeviciute and Arturas Zalga",

note = "Publisher Copyright: {\textcopyright} 2013 Akad{\'e}miai Kiad{\'o}, Budapest, Hungary.",

year = "2013",

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day = "13",

doi = "10.1007/s10973-013-3579-0",

language = "English",

volume = "118",

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journal = "Journal of Thermal Analysis and Calorimetry",

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TY - JOUR

T1 - Aqueous sol-gel synthesis and thermoanalytical study of the alkaline earth molybdate precursors

AU - Braziulis, Gediminas

AU - Janulevicius, Gytautas

AU - Stankeviciute, Ruta

AU - Zalga, Arturas

PY - 2013/12/13

Y1 - 2013/12/13

N2 - The preparation and characterization of the M-Mo-O nitrate-tartrate (M = Mg, Ca, Sr, and Ba) gels, which were produced by the simple aqueous sol-gel method and calcined at 500, 600, 700, 800, 900, and 1,000 °C temperatures are reported. The crystalline alkaline earth metal molybdates (MgMoO4, CaMoO4, SrMoO4, and BaMoO4) and as-prepared M-Mo-O nitrate-tartrate gels investigated by thermal analysis (TG/DSC), X-ray diffraction (XRD), and scanning electron microscopy (SEM). TG/DSC analysis showed the possible decomposition mechanism of synthesized gels. XRD studies allowed the identification of main types of crystalline structures in the MgMoO4, CaMoO4, SrMoO4, and BaMoO4 systems. Moreover, SEM analysis revealed the changes of surface morphology of the final compounds depending on annealing temperatures.

AB - The preparation and characterization of the M-Mo-O nitrate-tartrate (M = Mg, Ca, Sr, and Ba) gels, which were produced by the simple aqueous sol-gel method and calcined at 500, 600, 700, 800, 900, and 1,000 °C temperatures are reported. The crystalline alkaline earth metal molybdates (MgMoO4, CaMoO4, SrMoO4, and BaMoO4) and as-prepared M-Mo-O nitrate-tartrate gels investigated by thermal analysis (TG/DSC), X-ray diffraction (XRD), and scanning electron microscopy (SEM). TG/DSC analysis showed the possible decomposition mechanism of synthesized gels. XRD studies allowed the identification of main types of crystalline structures in the MgMoO4, CaMoO4, SrMoO4, and BaMoO4 systems. Moreover, SEM analysis revealed the changes of surface morphology of the final compounds depending on annealing temperatures.

KW - Alkaline earth metals

KW - Sol-gel processing

KW - Thermal analysis

UR - https://www.scopus.com/pages/publications/84910109431

U2 - 10.1007/s10973-013-3579-0

DO - 10.1007/s10973-013-3579-0

M3 - Article

AN - SCOPUS:84910109431

SN - 1388-6150

VL - 118

SP - 613

EP - 621

JO - Journal of Thermal Analysis and Calorimetry

JF - Journal of Thermal Analysis and Calorimetry

IS - 2

ER -

Aqueous sol-gel synthesis and thermoanalytical study of the alkaline earth molybdate precursors

Abstract

Keywords

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