Preparation and lithium extraction performance of CNT-GO doped LiMn2O4 film electrode

被引：0

作者：

Yang T. ^{[1
,3
]}

Zhang H. ^{[1
,3
]}

Zhang F. ^{[1
,3
]}

Ji Z. ^{[1
,2
,3
]}

Zhang P. ^{[1
,3
]}

Wang J. ^{[1
,3
]}

Guo Z. ^{[1
,3
]}

Fang J. ^{[1
,3
]}

机构：

[1] Engineering Research Center of Seawater Utilization of Ministry of Education, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin

[2] Tianjin Key Laboratory of Intrinsically Safe Chemical Technology, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin

[3] Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin

来源：

Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities | 2023年 / 37卷 / 05期

关键词：

adsorption; LiMn[!sub]2[!/sub]O[!sub]4[!/sub; lithium extraction; recovery; selectivity;

D O I：

10.3969/j.issn.1003-9015.2023.05.016

中图分类号：

学科分类号：

摘要：

A doped LiMn2O4 film electrode CNT-GO-LiMn2O 4 (CNT-GO-LMO) was prepared by introducing one-dimensional carbon nanotube (CNT) and two-dimensional graphene oxide (GO) material for improving the conductivity and lithium extraction efficiency of traditional LMO film electrode. CNT and GO interacted with LMO active materials via π-π interaction to construct an "interconnected" three-dimensional dense conductive network structure of LMO active electrode materials, enabling CNT-GO-LMO film electrodes excellent conductivity and lithium extraction performance. The film electrode was characterized by scanning electron microscope, Raman spectroscopy and X-ray diffraction, and its lithium extraction performance in high Mg/Li solution was investigated. The results showed that the CNT-GO effectively enhanced the Mg/Li separation coefficient and current efficiency of CNT-GO-LMO. Compared with LMO and CNT-LMO film electrodes, CNT-GO-LMO film electrode exhibited better lithium extraction performance: an average capacity of 36.04 mg.g1, a lithium extraction rate of 1.085 mg. (g.min) 1, and a current efficiency of 94.73%. © 2023 Zhejiang University. All rights reserved.

引用

页码：832 / 839

页数：7

共 24 条

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