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dc.contributor.authorQian, Fangren
dc.contributor.authorZhao, Bing
dc.contributor.authorGuo, Min
dc.contributor.authorWu, Zhijian
dc.contributor.authorZhou, Wuzong
dc.contributor.authorLiu, Zhong
dc.identifier.citationQian , F , Zhao , B , Guo , M , Wu , Z , Zhou , W & Liu , Z 2020 , ' Surface trace doping of Na enhancing structure stability and adsorption properties of Li 1.6 Mn 1.6 O 4 for Li + recovery ' , Separation and Purification Technology , vol. In press .
dc.identifier.otherPURE: 269707477
dc.identifier.otherPURE UUID: 0efc0673-3b51-43eb-aa8a-d4fc3908d6ff
dc.identifier.otherRIS: urn:07F254E5B3CD20B72A6A4F98BE62723D
dc.identifier.otherORCID: /0000-0001-9752-7076/work/79226709
dc.identifier.otherScopus: 85094200655
dc.identifier.otherWOS: 000675458700001
dc.descriptionThe work was supported by the NSFC (No: 51302280 and No: U1607105), the Scientific and Technological Funding in Qinghai Province, China (No:2018-GX-101, No:2018-ZJ-722 and No:2019-HZ-808,), the Thousand Talents Plan in Qinghai province and Youth Innovation Promotion Association of Chinese Academy of Sciences (No:2016377).en
dc.description.abstractLi1.6Mn1.6O4 (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 through surface trace doping of Na (LMO-Na). The dissolution of Mn is reduced from 5.4% (before doping) to 4.4%, and the adsorption uptake is increased from 33.5 mg/g to 33.9 mg/g at Li+ concentration of 24 mmol/L. In addition, first-principles calculations further confirm that Na substitutes for Li at 16d sites, leading to an improvement of the Li+ uptake rate and stabilizing the Mn cations in the compound. With the help of Na doping, the undesired dissolution of Mn in the cycling process is inhibited, which may result from reducing the content of the low valent Mn3+ and improving the structural stability of the adsorbent. The effect of the Na substitution on adsorption capacity and structure stability is discussed.
dc.relation.ispartofSeparation and Purification Technologyen
dc.rightsCopyright © 2020 Elsevier B.V. All rights reserved. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at
dc.subjectMn dissolutionen
dc.subjectDFT calculationsen
dc.subjectQD Chemistryen
dc.titleSurface trace doping of Na enhancing structure stability and adsorption properties of Li1.6Mn1.6O4 for Li+ recoveryen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
dc.contributor.institutionUniversity of St Andrews. EaSTCHEMen
dc.description.statusPeer revieweden

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