[1]李银银,李田莉,代 芳,等.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,(06):573-579.[doi:10.16357/j.cnki.issn1000-5862.2020.06.04]
　LI Yinyin,LI Tianli,DAI Fang,et al.The Preparation and Electrochemical Performance of Two-Dimensional Ti2CTx Materials[J].Journal of Jiangxi Normal University:Natural Science Edition,2020,(06):573-579.[doi:10.16357/j.cnki.issn1000-5862.2020.06.04]
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2维层状Ti2CTx电极材料的制备和电化学性能研究()
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《江西师范大学学报》（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年06期
页码:
573-579
栏目:
化学与环境科学
出版日期:
2020-12-20

文章信息/Info

Title:
The Preparation and Electrochemical Performance of Two-Dimensional Ti2CTx Materials
文章编号:
1000-5862(2020)06-0573-07
作者:
李银银1; 李田莉1; 代 芳2; 丁立稳1; 章 磊1; 温祖标1*
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
Author(s):
LI Yinyin1; LI Tianli1; DAI Fang2; DING Liwen1; ZHANG Lei1; WEN Zubiao1*
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
关键词:
2维材料;  Ti2CTx;  电化学性能
Keywords:
two-dimensional material;  Ti2CTx;  electrochemical performance
分类号:
TQ 174
DOI:
10.16357/j.cnki.issn1000-5862.2020.06.04
文献标志码:
A
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.
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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备注/Memo

备注/Memo:
收稿日期:2019-06-05
基金项目:国家自然科学基金(21463013),江西省自然科学基金(20171BAB203013)和江西省教育厅科技课题(GJJ190952)资助项目.
通信作者:温祖标(1976-),男,江西石城人,副教授,博士,主要从事纳米材料电化学研究.E-mail:zbwen@jxnu.edu.cn
更新日期/Last Update: 2020-12-20