The oxidant peroxo method (OPM) as a new alternative for the synthesis of lead-based and bismuth-based oxides

Journal of Materials Research Volume: 29 Issue: 4 Pages: 607 Published: 2014

SEM images of praseodymium-modified lead titanate Pb0.80Pr0.20TiO3 samples (a) powder calcined at 700 °C, (b) pellet sintered at 1100 °C, and (c) pellet sintered at 1150 °C.23

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Writers: Emerson R. Camargo, Mayra G. Dancini, Masasto Kakihana

Keywords: ceramic; chemical syntesis; powder processing

Abstract: The oxidant peroxo method (OPM) exhibits several advantage and unique characteristics not found in the traditional methods for the synthesis of lead- and bismuth-based oxides. First of all, it is a clean method based on hydrogen peroxide that matches perfectly with the green chemistry approach. Second, the oxidizing local atmosphere provided by the precursor during its crystallization is unique among all the wet chemical techniques of synthesis, which usually result in reducing environment. Besides these advantages, only a few studies have focused on the use of the OPM to obtain better materials, which makes this field of study an excellent opportunity for the development of materials with higher purity and controlled morphologies

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