采用溶胶-凝胶法合成了MgTi2O5材料.粉末X射线衍射(XRD)和扫描电子显微镜(SEM)测试表明,该材料结晶良好,粒径均匀.使用其作为镁电池的正极活性物质组成模拟电池,测试循环伏安(CV)、电化学阻抗(EIS)、循环充放电,结果表明,该正极材料具有较好的可逆充放电行为,反应历程涉及特性吸附,动力学性能有待改进.
MgTi2O5 material was synthesized via sol-gel method in this work. Powder Xray diffraction(XRD) and scanning electronic microscopy(SEM) tests show that the material is well-crystalled and gets uniform particle size. Simulation cells were assembled employing the material as positive electrode. Cyclic voltammogram (CV), electrochemical impedance spectroscopy(EIS) and charge-discharge cycle test show that the material has good reversibility, slow thermodynamic properties and characteristic adsorption process.