| 2维层状Ti2CTx电极材料的制备和电化学性能研究 |
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| 引用本文： | 李银银,李田莉,代芳,丁立稳,章磊,温祖标.2维层状Ti2CTx电极材料的制备和电化学性能研究[J].江西师范大学学报(自然科学版),2020,44(6):573-579. |
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| 作者姓名： | 李银银 李田莉 代芳 丁立稳 章磊 温祖标 |
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| 作者单位： | 1.江西师范大学化学化工学院,江西 南昌 330022; 2.南昌工程学院江西省精密驱动与控制重点实验室,江西 南昌 330099 |
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| 基金项目： | 国家自然科学基金;江西省自然科学基金;江西省教育厅科技项目 |
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| 摘 要： | 以Ti2AlC为前驱体,以盐酸与氟化锂的溶液为刻蚀剂,在40 ℃磁力搅拌条件下,刻蚀48 h制得Ti2CTx材料.分别采用N2吸附/脱附、X-射线衍射、拉曼光谱、扫描电子显微镜、能量色散X-射线光谱仪和透射电镜等方法对试样的比表面积、孔分布、晶相结构、形貌特征等物理性质进行了表征; 用循环伏安、恒流充放电和交流阻抗等电化学方法研究了Ti2CTx材料在2 mol·L-1 KOH溶液中的电化学特性.实验结果表明:Ti2CTx是2维层状材料,在电流密度为1 A·g-1时,该材料的比容量为119 F·g-1,经10 000次充放电循环后,比容量保留率为98%,且保持较高的库伦效率.
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| 关 键 词： | 2维材料 2CTx Ti2CTx 电化学性能 |
The Preparation and Electrochemical Performance of Two-Dimensional Ti2CTx Materials |
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| LI Yinyin,LI Tianli,DAI Fang,DING Liwen,ZHANG Lei,WEN Zubiao.The Preparation and Electrochemical Performance of Two-Dimensional Ti2CTx Materials[J].Journal of Jiangxi Normal University (Natural Sciences Edition),2020,44(6):573-579. |
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| Authors: | LI Yinyin LI Tianli DAI Fang DING Liwen ZHANG Lei WEN Zubiao |
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| Institution: | 1.College of Chemistry and Chemical Engineering,Jiangxi Normal University,Nanchang Jiangxi 330022,China; 2.Jiangxi Province Key Laboratory of Precision Drive and Control,Nanchang Institute of Technology,Nanchang Jiangxi 330099,China |
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| Abstract: | Ti2AlC is used as raw material,hydrochloric acid and lithium fluoride is used as an etching agent,magnetic stirring at 40 ℃,etching 48 h to obtain Ti2CTx two-dimensional material.The physical properties are characterized by XRD、TEM、BET、Raman、SEM、EDX and TEM,respectively.And their electrochemical performance in 2 mol·L-1 KOH electrolyte is studied.The experimental results show that the specific capacity of Ti2CTx at 1 A·g-1 is as high as 119 F·g-1 after 10 000 charge-discharge cycles.Besides,the specific capacity retention rate is 98% and the coulomb efficiency remains high. |
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| Keywords: | two-dimensional material 2CTx Ti2CTx electrochemical performance |
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