关于NaV(PO)作为阳极在低电压窗口下钠嵌入的固态核磁共振研究。
Solid-state NMR study on sodium intercalation at low voltage window for NaV(PO) as an anode.
作者信息
Liao Yuxin, Geng Fushan, Shen Ming, Hu Bingwen
机构信息
Shanghai Key Laboratory of Magnetic Resonance, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, China.
出版信息
Magn Reson Lett. 2023 Dec 27;4(2):100093. doi: 10.1016/j.mrl.2023.12.001. eCollection 2024 May.
XRD, P NMR and Na NMR were used to analyze the interaction behavior of NaV(PO) at low voltage, and then a new intercalation model was proposed. During the transition from NaV(PO) to NaV(PO), Na ions insert into M1, M2 and M3 sites simultaneously. Afterwards, during the transition of NaV(PO) to NaV(PO), Na ions mainly insert into M3 site.
利用X射线衍射（XRD）、磷核磁共振（³¹P NMR）和钠核磁共振（²³Na NMR）分析了NaV(PO₄)₃在低电压下的相互作用行为，进而提出了一种新的嵌入模型。在从NaV(PO₄)₃转变为NaV₃(PO₄)₄的过程中，钠离子同时插入到M1、M2和M3位点。之后，在从NaV₃(PO₄)₄转变为NaV₂(PO₄)₂F的过程中，钠离子主要插入到M3位点。
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