Preparation and Composition-Structure-Thermal Stability Relation of a Novel Open-framework Vanadium Phosphate(H_3NCH_2CH_2NH_3)_3[(VO)_4(PO_4)_2(HPO_4)_4]  

作　　者：Zanzhongyang LibingLiao 等 

机构地区：[1]SchoolofMaterialsScienceandTechnology,ChinaUniversityofGeosciences,Beijing100083,ChinaScholofMaterialsScienceandTechnology,ShandongUniversityofScienceandEngineering,Zibo255000k,C [2]SchoolofMaterialsScie

出　　处：《Journal of University of Science and Technology Beijing》2002年第1期36-39,共4页北京科技大学学报（英文版）

基　　金：This research was kindly supported by the Research Fund for the Doctoral Program of Higher Education (RFDP) and the OpeningFou

摘　　要：A novel open-framework vanadium(W) phosphate(H_3NCH_2CH_2NH_3)_3[(VO)_4(PP_4)_2(HPO_4)_4] (short for V_2P_3-en) has been prepared. It issynthesized hydrothermally in the presence of ethylenediamine (en) at 170 deg C for 5 days byself-assembly from structurally simple precursors V_2O_5, H_3PO_4 and H_2O. The compound ischaracterized by means of Fourier transform-infrared spectroscopy (FT-IR),Thermogravimetry-differential thermal analysis (TG-DTA), X-ray powder diffraction analysis (XRD) andScanning electron microscopy (SEM). Furthermore, the composition-structure-thermal stabilityrelation of V_2P_3-en is explored in terms of crystal chemistry, and the potential approach to theenhancement of its thermal stability is proposed.A novel open-framework vanadium(W) phosphate(H_3NCH_2CH_2NH_3)_3[(VO)_4(PP_4)_2(HPO_4)_4] (short for V_2P_3-en) has been prepared. It issynthesized hydrothermally in the presence of ethylenediamine (en) at 170 deg C for 5 days byself-assembly from structurally simple precursors V_2O_5, H_3PO_4 and H_2O. The compound ischaracterized by means of Fourier transform-infrared spectroscopy (FT-IR),Thermogravimetry-differential thermal analysis (TG-DTA), X-ray powder diffraction analysis (XRD) andScanning electron microscopy (SEM). Furthermore, the composition-structure-thermal stabilityrelation of V_2P_3-en is explored in terms of crystal chemistry, and the potential approach to theenhancement of its thermal stability is proposed.

关 键 词：vanadium phosphate hydrothermal synthesis open framework THERMALSTABILITY crystal chemistry 

分 类 号：TG146.43[一般工业技术—材料科学与工程]