| Surface trace doping of Na enhancing structure stability and adsorption properties of Li1.6Mn1.6O4 for Li+ recovery | |
Qian, Fangren; Zhao, Bing; Guo, Min ; Wu, Zhijian; Zhou, Wuzong; Liu, Zhong
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| 第一作者 | Qian, Fangren |
| 2021-02-01 | |
| 发表期刊 | SEPARATION AND PURIFICATION TECHNOLOGY
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| ISSN | 1383-5866 |
| 卷号 | 256 |
| 摘要 | Li1.6Mn1.6O4 (LMO) is a dominant adsorbent for lithium recovery from solutions resulted from its high theoretical adsorption uptake and a low loss rate of Mn, which can potentially be further improved by trace doping. We achieve stable cycling and high adsorption capacity of Li1.6Mn1.6O4 from aqueous lithium resources by Na doped (LMO-Na). The Mn dissolution is decreased from 5.4% (bare adsorbent) to 4.4%, and the uptake is increased from 33.5 mg/g to 33.9 mg/g (CLi+: 24 mmol/L). Furthermore, DFT calculations predict that Na replace for Li at 16d sites, result in an enhancement of the Li+ adsorption rate and structure stability of LMO. The loss rate of Mn in cycling process is restrained by Na doped, which may result from reducing the content of low valent Mn3+ and improving the structural stability of material. The effect of Na substitution on adsorption capacity and structure stability is discussed. |
| DOI | 10.1016/j.seppur.2020.117583 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.isl.ac.cn/handle/363002/34328 |
| 专题 | 盐湖资源与化学实验室 |
| 推荐引用方式 GB/T 7714 | Qian, Fangren,Zhao, Bing,Guo, Min,et al. Surface trace doping of Na enhancing structure stability and adsorption properties of Li1.6Mn1.6O4 for Li+ recovery[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2021,256. |
| APA | Qian, Fangren,Zhao, Bing,Guo, Min,Wu, Zhijian,Zhou, Wuzong,&Liu, Zhong.(2021).Surface trace doping of Na enhancing structure stability and adsorption properties of Li1.6Mn1.6O4 for Li+ recovery.SEPARATION AND PURIFICATION TECHNOLOGY,256. |
| MLA | Qian, Fangren,et al."Surface trace doping of Na enhancing structure stability and adsorption properties of Li1.6Mn1.6O4 for Li+ recovery".SEPARATION AND PURIFICATION TECHNOLOGY 256(2021). |
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| Surface trace doping（3974KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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