Synthesis, Characterization and Silanization Spinel ZnAl1.9Eu0.1O4

P.T.A. Santos; P.M.A.G. Araújo; Polyana T.A. Santos; Ana Cristina Figueredo Melo Costa

doi:10.4028/www.scientific.net/MSF.805.100

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HomeMaterials Science ForumMaterials Science Forum Vol. 805Synthesis, Characterization and Silanization...

Synthesis, Characterization and Silanization Spinel ZnAl₁_.₉Eu₀_.₁O₄

Abstract:

This paper aims to synthesize by combustion reaction and silanilized of the ZnAl_1.9Eu_0.1O₄, with silane agent 3-aminopropyltrimethoxysilane. The characterization of materials before and after silanization was investigated. Nanoparticles ZnAl_1.9Eu_0.1O₄was obtained according to the theory of propellants and explosives using the synthesis combustion reaction. The samples were deagglomerated and passed through a sieve of 325 mesh and added to 3-aminopropyltrimethoxysilane, followed by heat shock treatment by ultrasonic and microwave. Subsequently centrifuged and dried at 150 ° C for 24 hours. The samples before and after the silane were characterized by X-ray diffraction, infrared spectroscopy and thermogravimetric analysis. The results indicate the formation of a major phase spinel normal ZnAl₂O₄, and the EuAlO₃ peaks as secondary phase. The FTIR spectra for ZnAl_1.9Eu_0.1O₄ have absorption bands below 1000 cm^-1, and after silanization showed bands of C = O, axial strain - CN and Si-O bands, which proves the silanization. The thermogravimetric curves showed good thermal stability, with mass loss around 30%.

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Periodical:

Materials Science Forum (Volume 805)

Pages:

100-105

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.805.100

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Online since:

September 2014

Authors:

P.T.A. Santos*, P.M.A.G. Araújo, Polyana T.A. Santos, Ana Cristina Figueredo Melo Costa

Keywords:

3-Aminopropyltrimethoxysilane, Silanization, ZnAl_1.9Eu_0.1O₄

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