COMPARATIVE STUDY OF THE USE OF CITRIC ACID AND UREA IN THE SYNTHESIS OF CALCIUM MANGANITES DOPED WITH EU, BY COMBUSTION METHOD

Authors

  • Felipe Legorreta Garcí­a
  • Leticia Esperanza Hernández Cruz Universidad Autónoma de Hidalgo
  • Francisco Javier Garcí­a Delgado Universidad Autónoma de México
  • Ana María Bolarín Miró Universidad Autónoma de Hidalgo
  • Félix Sánchez de Jesús Universidad Autónoma de Hidalgo

Abstract

Calcium manganites doped with europium were synthesized by combustion method, in a stoichiometric composition Eu0.05 Ca0.95 MnO3-d; using as precursors salts, nitrates of calcium, manganese and europium. The type of fuel agent effect (citric acid and urea), the concentration effect (urea (U: 1, 2, 3, 4, 5, 10 y 20) and citric acid effect (AC: 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 7 y 10)) of fuel agent were studied. In order to study the size, the morphology and the crystal structure of the particles, there were made particle size analyses (PSA), scanning electron microscopy (SEM) and X-ray diffraction (XRD). Manganite was successfully synthesized by combustion method, structurally composed of a mixture of two phases: CaMnO3-orthorhombic and Ca2MnO4-tetrahedral. The results showed that the proportion of fuel agent effects the performance, the morphology and size of the synthesized particles.

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Author Biographies

Felipe Legorreta Garcí­a

Profesor investigador

Leticia Esperanza Hernández Cruz, Universidad Autónoma de Hidalgo

Profesor Investigador, Jefa de Área

Francisco Javier Garcí­a Delgado, Universidad Autónoma de México

Estudiante de Maestría

Ana María Bolarín Miró, Universidad Autónoma de Hidalgo

Profesor Investigador, Coordinadora de posgrado

Félix Sánchez de Jesús, Universidad Autónoma de Hidalgo

Profesor Investigador

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Published

2011-04-28

How to Cite

Garcí­a, F. L., Hernández Cruz, L. E., Garcí­a Delgado, F. J., Bolarín Miró, A. M., & Sánchez de Jesús, F. (2011). COMPARATIVE STUDY OF THE USE OF CITRIC ACID AND UREA IN THE SYNTHESIS OF CALCIUM MANGANITES DOPED WITH EU, BY COMBUSTION METHOD. LatinAmerican Journal of Metallurgy and Materials, 12–20. Retrieved from https://www.rlmm.org/ojs/index.php/rlmm/article/view/83

Issue

2012, 32(1)

Section

Regular Articles

License

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