Abstract
This data article contains the synthesis and structure information of a new Fe-base sodium metaphosphate compound, which is related to the research article entitled ‘Synthesis, structural, magnetic and sodium deinsertion/insertion properties of a sodium ferrous metaphosphate, NaFe(PO3)3’ by Lin et al. [1]. The research article has reported a new Fe-base metaphosphate compound NaFe(PO3)3, which is discovered during the exploration of the new potential electrode materials for sodium-ion batteries. In this data article, the synthesized process of this metaphosphate compound and the morphology of the obtained sample will be provided. The high-power XRD Rietveld refinement is applied to determine the crystal structure of this metaphosphate compound and the refinement result including the main refinement parameters, atomic coordinate and some important lattace parameters are stored in the cif file. Also, the refined structure has be evaluated by checkcif report and the result is also provided as the supplementary materials.
Highlights
This data article contains the synthesis and structure information of a new Fe-base sodium metaphosphate compound, which is related to the research article entitled ‘Synthesis, structural, magnetic and sodium deinsertion/insertion properties of a sodium ferrous metaphosphate, NaFe(PO3)3’ by Lin et al [1]
NaFe(PO3)3 compound was synthesized by conventional two-step solid-state method and Na2CO3 (Aladdin, Z 99.8%), FeC2O4 Á 2H2O (Aladdin, Z 99.9%) and NH4H2PO4 (Codow, Z 99.9%) powder reagents were used as the raw materials
The powder diffraction intensity data for the sample were collected using X’Pert PRO (PANalytical, Netherlands) with Cu Kα radiation (λ 1⁄41.5418 Å) and a graphite monochromator was used for diffracted beams
Summary
NaFe(PO3) compound was synthesized by conventional two-step solid-state method and Na2CO3 (Aladdin, Z 99.8%), FeC2O4 Á 2H2O (Aladdin, Z 99.9%) and NH4H2PO4 (Codow, Z 99.9%) powder reagents were used as the raw materials. The stoichiometric proportions of these raw materials with the molar rate of Na:Fe:P1⁄4 1:1:3 was carefully grand homogeneous in the agate mortar, put into the platinum crucible, and preheated at 573 K for 10 h to expelling NH3, H2O and CO2. After cooling down to room temperature, the samples were reground again in the agate mortar for 30 min, and sintered at 873 K for 15 h in Pt crucible. After cooling down to room temperature naturally, the NaFe(PO3) compound was obtained. The typical SEM image of NaFeP3O9 powder, as shown in Fig. 2, was obtained by the field emission scanning electron microscopy (FE-SEM, Navo NanoSEM430)
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