Citation: Zheng Wei Xiao, Guo Rong Hu, Zhong Dong Peng, Ke Du, Xu Guang Gao. Solid state synthesis and characterization of iron (Ⅱ) pyrophosphate Fe₂P₂O₇[J]. Chinese Chemical Letters, ;2007, 18(12): 1525-1527. doi: 10.1016/j.cclet.2007.09.033 shu

Solid state synthesis and characterization of iron (Ⅱ) pyrophosphate Fe₂P₂O₇

School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China

Received Date: 4 June 2007

Offwhite pure Fe₂P₂O₇ was synthesized through solid phase reaction using Fe₂O₃ and NH₄H₂PO₄ in argon atmosphere. The reaction products of Fe₂O₃ and NH₄H₂PO₄ at a series of temperatures from 400 to 900℃ were characterized by XRD. Comparison and analysis of XRD patterns of resultant products indicated well-crystallized Fe₂P₂O₇ could be obtained over 630℃ and Fe₂P₂O₇ prepared at 700℃ was triclinic in cell type. Comparison of the cell parameters proved that the as-prepared Fe₂P₂O₇ belonged to β-Fe₂P₂O₇ in crystal phase and SEM showed its size distribution was 0.5-2 μm.
- Fe₂P₂O₇,
- Preparation,
- Solid phase reaction,
- Characterization
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