Síntesis y caracterización de pigmentos tipo espinela CuCr2O4 a través del método autocombustión en solución
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Date
2012
Journal Title
Journal ISSN
Volume Title
Publisher
Corporación Universitaria Lasallista
Abstract
Introduction. In the industrial production of
pigments, the solid state reaction has been
traditionally applied as a method to obtain complex
oxides, such as pigmenting application spinels
(formula AB2O4), which are synthesized through
alternative routes, aiming to reduce costs and
energy consumption in the production process. In
this research work, the spinel type pigment CuCr2O4
was synthesized by the use of the in solution auto
combustion method, through the citrate-nitrate,
urea-nitrate and glycine-nitrate routes. Objective.
To obtain spinel type structures by the use of the
citrate-nitrate, urea-nitrate and glycine-nitrate auto
combustion methods. Materials and methods. For
the synthesis of the pigments in the different routes,
the compounds (Cu(NO3)2.3 H2O), (Cr(NO3)3.9 H2O),
(CH2NH2CO2H), (CO(NH2)2), (C6H8O7), (CuCO3.
Cu(OH)2) and finally (III) (Cr2O3), were used. The
pigments obtained were characterized by the use of
several techniques such as X ray diffraction (DRX),
scanning electron microscopy (SEM) and UV-VIS
spectrophotometry. Results and discussion.With the synthesis methods proposed, a control
of size and morphology of the particles and of the
purity of the phases, was achieved. Conclusion.
The pigments obtained by the different routes
have similar characteristics and characterization
responses and, therefore, the pigment achieved is
the same. This means that reducing costs in the
synthesis is possible.
Description
Keywords
Corporación Universitaria Lasallista, Pigmento cerámico, Método de auto combustión, Industria cerámica, Espinelas, Cerámica, Cerámica - Producción