Enabling highly structure stability and adsorption performances of Li1.6Mn1.6O4 by Al-gradient surface doping

doi:10.1016/j.seppur.2021.118433

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	Enabling highly structure stability and adsorption performances of Li1.6Mn1.6O4 by Al-gradient surface doping
	Qian, Fangren; Guo, Min; Qian, Zhiqiang; Zhao, Bing; Li, Jun; Wu, Zhijian; Liu, Zhong
第一作者	Qian, Fangren
	2021-06-01
发表期刊	SEPARATION AND PURIFICATION TECHNOLOGY
ISSN	1383-5866
卷号	264
摘要	Manganese based ion-sieves, particularly Li1.6Mn1.6O4, can be used to recover Li+ from salt lakes due to their excellent adsorption and anti-dissolution properties. Generally, the element doping can only improve the adsorbent capacity or enhance the structural stabilities. In this work, the adsorption capacity of Li1.6Mn1.6O4 is improved from 33.4 to 40.9 mg/g (c(LiCl) = 24 mmol/L) via trace surface doping of Al (LMO-Al), likely owing to the partial substitution of Mn's 16d sites by Al3+. Furthermore, the dissolution of Mn in Li1.6Mn1.6O4 is reduced from 5.4% (before doping) to 2.1%, which may due to stronger Al3+ and O-2(-) chemical bond and improving the amounts of Mn4+. In addition, Al doping allowed for the reduction of the dissolution loss rate of Mn during cycling, which greatly increases the possibility in practical application.
DOI	10.1016/j.seppur.2021.118433
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/34348
专题	盐湖资源与化学实验室
推荐引用方式 GB/T 7714	Qian, Fangren,Guo, Min,Qian, Zhiqiang,et al. Enabling highly structure stability and adsorption performances of Li1.6Mn1.6O4 by Al-gradient surface doping[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2021,264.
APA	Qian, Fangren.,Guo, Min.,Qian, Zhiqiang.,Zhao, Bing.,Li, Jun.,...&Liu, Zhong.(2021).Enabling highly structure stability and adsorption performances of Li1.6Mn1.6O4 by Al-gradient surface doping.SEPARATION AND PURIFICATION TECHNOLOGY,264.
MLA	Qian, Fangren,et al."Enabling highly structure stability and adsorption performances of Li1.6Mn1.6O4 by Al-gradient surface doping".SEPARATION AND PURIFICATION TECHNOLOGY 264(2021).

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