Co掺杂改性CaTi2O4(OH)2纳米片的溶剂热制备及电化学性能

利用无水氯化钙-钛酸四正丁酯-无水乙醇体系,通过掺杂Co元素,用溶剂热法制备了CaTi2O4(OH)2片状结构.利用X射线衍射(XRD)和扫描电子显微镜(SEM)对样品的显微结构进行检测分析,并利用CHI660E电化学工作站测试掺杂样品电化学性能,研究掺入Co元素对CaTi2O4 (OH)2样品的物相结构、微观形貌以及其电化学性能的影响.实验结果表明:随着钴离子掺入量增加样品的比电容先增加后减小,当Co掺杂量为2;样品的电化学性能最优,且在10 mA/cm2的工作电流密度下,其比电容为496.3 F·g-1.

Solvothermal Preparation and Electrochemical Properties of Co-doped CaTi2O4 (OH)2 Nanosheet

CaTi2O4 (OH)2 nanosheet structure was prepared by doping Co ions using anhydrous calcium chloride-TBOT-anhydrous ethanol system via a simple solvothermal method.The microstructure of the samples were characterized by X-ray diffraction(XRD) and scanning electron microscopy (SEM).The electrical properties of the samples were analyzed by CHI660E electrochemical workstation.Effects of Co ions contents on phase,microstructure and electrical properties of the samples were studied.The results show that the capacity of the samples first increases and then decreases.When Co ions content is 0.2;,the optimum capacity value of the sample is 496.3 F · g-1 at 10 mA/cm2.