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A rapid synthesis of cobalt cyclotetraphosphate Co2P 4O12 at low temperature
Date Issued
May 1, 2013
Type
Conference Paper
Abstract
The cobalt cyclotetraphosphate, Co2P4O12, was synthesized by evaporating a mixture of cobalt chloride hexahydrate, phosphoric acid and water at 70 °C, with further calcinations at 400 °C, 500 °C and 600 °C for 3 h. XRD results indicated that the Co 2P4O12 compounds obtained had only monoclinic phase with space group C2h6 (Z=4). From FT-IR spectra, vibrational modes corresponding to internal vibrations of the P 4O124- anion were identified. The morphologies and crystallite sizes for the Co2P4O12 obtained from SEM data and X-ray line broadening showed non-uniform particles and 37-68 nm, respectively. All characterization methods showed that the monoclinic phase of Co2P4O12 could be synthesized at the low temperature of 400 °C with short time consumption. The temperature was about 400 °C lower than that used in the previous synthesis method with CoCl 2 as reactant, and resulted in a cost-, energy-, and time-saving method. © 2012 Elsevier Ltd and Techna Group S.r.l.
Citation
Ceramics International, 39(SUPPL.1), S395-S398, 2013