A Simple Route to Synthesize Ferromagnetic Binary Calcium Iron Pyrophosphate CaFeP₂O₇ Using Aqueous-Acetone Media

Abstract:

A binary calcium iron pyrophosphate CaFeP₂O₇ was synthesized by solid state route using the mixing of calcium carbonate, iron metal and phosphoric acid in aqueous-acetone media at 600 °C. The XRD datum indicates the formation of CaFeP₂O₇ phase without the presence of any phase impurities. FTIR result indicates the presence of the P₂O₇^4- anion in the structure. Sheet-like microparticle of CaFeP₂O₇ was revealed by SEM. Room temperature magnetization result showed ferromagnetic behavior of the synthesized CaFeP₂O₇, with saturation-specific magnetization value of 11.067 emu g^-1 at 10kOe. The magnetic feature of the synthesized CaFeP₂O₇ in this work compared with M₂P₂O₇ (M = Ca and Fe), its isotypic (CaMP₂O₇ (M= Mn and Co) and CFeP₂O₇ (C= Co and Cu) reported in our previous works is important properties for specific applications.

• Periodical: Advanced Materials Research (Volume 717)
• Pages: 44-48
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.717.44
• Online since: July 2013
• Authors: Chaiyasith Pachernchaipat, Ruttanapun Chesta, Thongkam Montree, Kongteweelert Samart, Woramongkonchai Somsak, Boonchom Banjong
• Keywords: Binary Pyrophosphate, CaFeP₂O₇, Ferromagnetic, Synthesis

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