XRD, FE-SEM, FT-IR and ESR studies of cation deficient potassium tris(oxalato)ferrate(III)trihydrate

2nd International Conference on Materials Science and Technology

Narsimhulu, M.^1 ; Hussain, K.A.^1

Department of Physics, Kakatiya University, Warangal

506009, India^1

关键词: Energy dispersive Xray analyses (EDAX);    Field emission scanning electron microscopes;    Fourier transform infra red (FTIR) spectroscopy;    FTIR spectroscopy;    Inorganic materials;    Microstructural features;    Powder X ray diffraction;    Quantitative elemental analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/360/1/012048/pdf
DOI  :  10.1088/1757-899X/360/1/012048

来源: IOP

【 摘 要 】

Cation deficient potassium tris(oxalato)ferrate(III)trihydrate {K2.72[Fe(C2O4)3]•3.17H2O} crystals were characterized by X-ray powder diffractogram, Fourier Transform Infrared Spectroscopy (FT-IR), quantitative elemental analysis of EDAX, Field Emission Scanning Electron Microscope (FE-SEM), Electron Spin Resonance Spectroscopy (ESR) and Thermogravimetry And Diffrential thermal analysis (TG-DTA). This compound crystallizes in the monoclinic system with P21/c space group and shows three-dimensional (3D) chain structure. The elements present in the grown crystal were confirmed by the energy dispersive X-ray analysis (EDAX). The microstructural features on the surface of the single crystals were determined using FE-SEM. Powder X-ray diffraction results indicate the polycrystalline nature of the material. Infrared spectroscopy was used to study the vibrational modes of the compound. The room temperature crystalline ESR spectra indicate the high-spin (S = 5/2) of Fe(III) ion. Thermal behaviour of the compound has been studied using thermogravimetry and diffrential thermal analysis.