有机膦酸配合物热分解法制备三维网状形貌的偏磷酸铁

Simple and Rapid Synthesis of Fe(PO_3)_3 with Three-dimensional Networks Morphology by a Novel Thermal Decomposition of Iron Phosphonate

用三氯化铁和乙二胺四甲叉膦酸(edtmpH8)为原料合成膦酸铁(FeIII-edtmpH5)配合物前驱体,再将该前驱体在空气氛下焙烧即制得偏磷酸铁Fe(PO3)3.利用电喷雾质谱(ESI/MS)、红外光谱(FT-IR)、热重-差热分析(TG-DTA)测试确定了FeIII-edtmpH5配合物的组成和可能结构.对焙烧后产物进行X射线衍射(XRD)、扫描电镜(SEM)及透射电镜(TEM)测试,结果表明焙烧产物为具有三维网状形貌的高纯Fe(PO3)3.

The high pure Fe（PO3）3 with three-dimensional networks structure was synthesized by a novel thermal decomposition of phosphonate. Briefly, the iron phosphonate （Fem-edtmpHs） complex was synthesized by using FeCI3 and ethylenediamine-tetramethylene phosphonic acid （edtmpH8） as starting materials. The composition and structure of Fem-edtmpH5 complex is characterized by Fourier transform infrared spectroscopy （FT-IR）, electrospray ionization/mass spectrometry （ESI/MS） and thermogravimetry- differential thermal analysis （TG-DTA）. Then, the Fe（PO3）3 is obtained by thermal decomposition of FerH-edtmpH5 complex in air atmosphere. X-ray diffractometry （XRD）, scanning electron microscopy （SEM） and transmission electron microscopy （TEM） measurements show that the obtained Fe（PO3）3 pos- sesses high purity, good crystallinity and oarticular three-dimensional networks momhology.