论文成果

Island-like CeO2 decorated LiMn2O4: Surface modification enhancing electrochemical lithium extraction and cycle performance

摘要:Extracting lithium from salt lakes is an effective way to relieve the shortage of lithium resources. Electrochemical lithium extraction has attracted wide attention due to its high selectivity, eco-friendliness, and high-efficiency. Functional surface coating is an effective approach to improve the cycling performance, stability, and conductivity of the electroactive materials. In this work, LiMn2O4 (LMO) electrode materials were prepared via sol–gel method with island-like CeO2 coating (CeLMO) for lithium electrochemical adsorption from simulated brine. CeO2 is helpful to inhibit the agglomeration of active metal oxides and promote the contact and electron transfer between metal oxides. Based on the results from X-ray diffraction, X-ray photoelectron, and Raman spectroscopy, the fate of lithium intercalation and deintercalation in CeLMO is illuminated. CeLMO-2//Ag electrochemical system can produce 96% pure Li+ from Li2CO3 precipitated mother liquor, and the adsorption capacity is 36.52 mg·g?1. The capacity retention after 30 cycles was 60% at 50 mA·g?1, and the Mn dissolution loss rate is 0.016%. In summary, island-like oxide coating improves electrochemical lithium adsorption efficiency and is a promising technology for producing battery-grade lithium products. ? 2022 Elsevier B.V.

ISSN号:1385-8947

卷、期、页:卷 455,

发表日期:2023-01-01

影响因子:0.000000

期刊分区(SCI为中科院分区):一区

收录情况:SCIE(科学引文索引网络版),EI(工程索引)

发表期刊名称:Chemical Engineering Journal

参与作者:李小为,陈琳琳,张玉宁,顾俊

通讯作者:罗贵铃

第一作者:巢艳红,朱文帅,刘植昌,徐春明

论文类型:期刊论文

论文概要:罗贵铃,李小为,陈琳琳,张玉宁,顾俊,巢艳红,朱文帅,刘植昌,徐春明,Island-like CeO2 decorated LiMn2O4: Surface modification enhancing electrochemical lithium extraction and cycle performance,Chemical Engineering Journal,2023,卷 455,

论文题目:Island-like CeO2 decorated LiMn2O4: Surface modification enhancing electrochemical lithium extraction and cycle performance