化学
锂(药物)
循环伏安法
粉末衍射
介电谱
单斜晶系
电化学
扫描电子显微镜
对苯二甲酸
无机化学
二甲基甲酰胺
红外光谱学
金属有机骨架
溶剂热合成
核化学
结晶学
物理化学
有机化学
溶剂
晶体结构
电极
复合材料
吸附
材料科学
内分泌学
聚酯纤维
医学
作者
Cesario Ajpi,Naviana Leiva,Anders Lundblad,Göran Lindbergh,Saúl Cabrera
标识
DOI:10.1016/j.molstruc.2022.134127
摘要
This work presents synthesis and spectroscopic characterization of a new metal-organic framework (MOF). The compound Fe-BDC-DMF was synthetized by the solvothermal method and prepared via a reaction between FeCl3.6H2O and benzene-1,4-dicarboxylic acid (H2BDC) or terephthalic acid using N,N-dimethylformamide (DMF) as solvent. The powder was characterized by powder X-ray diffraction (PXRD), scanning electron microscopy (SEM) and infrared spectroscopy (IR) analysis. The electrochemical properties were investigated in a typical lithium-ion battery electrolyte by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and galvanostatic charging and discharging. The synthetized Fe-BDC-DMF metal-organic framework (MOF) contains a mixture of three phases, identified by PXRD as: MOF-235, and MIL-53(Fe) monoclinic with C2/c and P21/c space groups. The structure of the Fe-BDC is built up from Fe3+ ions, terephalates (BDC) bridges and in-situ-generated DMF ligands. The electrochemical measurements conducted in the potential range of 0.5–3.5 V vs. Li+/Li0 show the voltage profiles of Fe-BDC and a plateau capacity of around 175 mAh/g.
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