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The present investigation studied the synthesisSynthesis and microstructural characterization of niobium and lanthanumLanthanum-dopedDoped BaTiO3BaTiO3 (BT) synthesized by the Pechini methodPechini method. Five samples of BaTiO3BaTiO3 adding 0, 1, 2, 3, and 6 wt.% of Nb5+Nb5+ and La3+La3+ were synthesized. As a result of the characterization tests, it was found in the TGA analysis, that the highest mass loss of the BT precursor resin powders occurs between 600° and 800 °C; the XRD microstructural analysis indicates that the presence of dopant ions stabilizes the tetragonalTetragonal phase of BT (JCPDS 96-210-0860); Rietveld refinementRietveld refinement showed that the sample of BT with 3% Nb5+Nb5+ and La3+La3+ exhibited the highest percentage of BT ferroelectric tetragonalTetragonal phase with 59.94% by weight, space group P4mm, and crystallite size of 250.05 Ả. On the other hand, the high-resolution SEM analysis showed that the samples of BT co-dopedDoped with 1, 2, and 3% Nb5+Nb5+ and La3+La3+ presented structures consisting of polyhedron-shaped particles and particle sizes below 100 nm, with a tendency to form agglomerates.

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Synthesis and Microstructural Characterization by the Pechini Method of BaTiO3 Co-Doped with Nb5+ and La3+

  • 会议论文

  • 发表日期：

    2025年

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  • J. A. Palmas-León,
  • F. R. Barrientos-Hernández,
  • M. Pérez-Labra,
  • F. Patiño-Cardona,
  • L. Ramajo,
  • J. A. Romero-Serrano,
  • J. A. Cobos-Murcia,
  • M. Reyes-Pérez,
  • J. C. Juárez-Tapia

摘要

The present investigation studied the synthesisSynthesis and microstructural characterization of niobium and lanthanumLanthanum-dopedDoped BaTiO3BaTiO3 (BT) synthesized by the Pechini methodPechini method. Five samples of BaTiO3BaTiO3 adding 0, 1, 2, 3, and 6 wt.% of Nb5+Nb5+ and La3+La3+ were synthesized. As a result of the characterization tests, it was found in the TGA analysis, that the highest mass loss of the BT precursor resin powders occurs between 600° and 800 °C; the XRD microstructural analysis indicates that the presence of dopant ions stabilizes the tetragonalTetragonal phase of BT (JCPDS 96-210-0860); Rietveld refinementRietveld refinement showed that the sample of BT with 3% Nb5+Nb5+ and La3+La3+ exhibited the highest percentage of BT ferroelectric tetragonalTetragonal phase with 59.94% by weight, space group P4mm, and crystallite size of 250.05 Ả. On the other hand, the high-resolution SEM analysis showed that the samples of BT co-dopedDoped with 1, 2, and 3% Nb5+Nb5+ and La3+La3+ presented structures consisting of polyhedron-shaped particles and particle sizes below 100 nm, with a tendency to form agglomerates.