三聚氰胺
电极
导电体
锂(药物)
材料科学
萃取(化学)
碳纳米泡沫
金属泡沫
导电的
复合材料
化学工程
化学
色谱法
铝
工程类
多孔性
医学
物理化学
内分泌学
作者
Junyi Zhang,Yuan Zhou,Chunxi Hai,Yanyan Gao,Yan Zhao,Yong Sun,Shengde Dong,Xin He,Qian Xu,Jitao Chen,Hongli Sub,Luxiang Ma
出处
期刊:Desalination
[Elsevier]
日期:2024-02-01
卷期号:: 117457-117457
标识
DOI:10.1016/j.desal.2024.117457
摘要
Improving the kinetic performance of thick electrodes is key to enhancing lithium extraction from salt lakes. Nano-melamine foam (MF), known for its unique porous structure, is ideal for building a three-dimensional (3D) conductive network, thereby boosting electrode kinetics. In our study, we developed a thick electrode (20 mg·g−1) with a 3D-conductive network by in-situ growing LiFePO4 (LFP) onto a nanoscale MF substrate. This electrode exhibited superior kinetic performance and a high lithium adsorption capacity in brine, achieving up to 32.8 mg·g−1 in just 10 min. Remarkably, even in simulated brine with a high Mg2+/Li+ ratio, it maintained an average coulomb efficiency of 62 %, significantly lowering the Mg2+/Li+ ratio from 65.6 to 0.47. It also showed exceptional stability in actual brine, maintaining an average coulomb efficiency of about 56.6 %. Our development of this high conductivity, thick electrode provides new insights into efficient lithium extraction methods.
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