Synthesis and Electrochemical Properties of Aluminum Hexafluorophosphate
Synthesis and Electrochemical Properties of Aluminum Hexafluorophosphate
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DOI：
10.1021/acs.jpclett.1c01236
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发表时间：
2021-06-21
影响因子：
5.7
通讯作者：
Guo, Juchen
中科院分区：
文献类型：
--
作者：
Wen, Xiaoyu;Zhang, Jian;Guo, Juchen
报道了六氟磷酸铝（Al（PF 6）（3））的首次合成及其在二甲基亚砜（DMSO）中的电化学性质。合成的Al（PF 6）（3）的单晶结构显示为[Al（DMSO）（6）]（PF 6）（3），并且获得具有高离子电导率的0.25 M Al（PF 6）（3）在DMSO中。用核磁共振谱和电喷雾质谱进一步证实了该电解质的纯度。然后，我们证明了在这种电解液中，使用扫描电子显微镜和X射线光电子能谱深度剖析研究的Al沉积剥离的可逆性。寄生反应，涉及DMSO分解过程中Al沉积也确定通过气相色谱/电子电离质谱。
We report the first synthesis of aluminum hexafluorophosphate (Al(PF6)(3)) and its electrochemical properties in dimethyl sulfoxide (DMSO). The single crystal structure of the synthesized Al(PF6)(3) is revealed as [Al(DMSO)(6)](PF6)(3) , and 0.25 M Al(PF6 )(3) in DMSO with high ionic conductivity is obtained. The purity of this electrolyte was further confirmed with nuclear magnetic resonance spectroscopy and electrospray ionization mass spectrometry. We then demonstrated the reversibility of Al deposition-stripping in this electrolyte using scanning electron microscopy and an X-ray photoelectron spectroscopy depth profiling study. The parasitic reaction involving DMSO decomposition during Al deposition is also identified via gas chromatography/electron ionization mass spectrometry.