Floral-like microarchitectures of cobalt iron cyclotetraphosphate obtained by solid state synthesis

Floral-like microparticle of a binary cobalt iron cyclotetraphosphate CoFeP₄O₁₂ was synthesized through solid phase reaction using cobalt carbonate, iron metal and phosphoric acid with further calcinations at the temperature of 500 °C. The XRD and FTIR results indicate that the prepared CoFeP₄O₁₂ has a pure monoclinic phase without the presence of any phase impurities. The floral-like microparticle and superparamagnetic behavior of the synthesized CoFeP₄O₁₂ are important properties for specific applications, which were revealed by SEM and VSM techniques, respectively. The dominant features of the synthesized CoFeP₄O₁₂ in this work are compared with M₂P₄O₁₂ (M = Co and Fe) and CoFeP₄O₁₂ reported in our previous works.