Wen Xiaoyu, Zhang Jian, Luo Hewei, Shi Jiayan, Tsay Charlene, Jiang Huanhuan, Lin Ying-Hsuan, Schroeder Marshall A, Xu Kang, Guo Juchen
School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China.
Energy Sciences Division, US Army Research Laboratory, Adelphi, Maryland 20783, United States.
J Phys Chem Lett. 2021 Jul 1;12(25):5903-5908. doi: 10.1021/acs.jpclett.1c01236. Epub 2021 Jun 21.
We report the first synthesis of aluminum hexafluorophosphate (Al(PF)) and its electrochemical properties in dimethyl sulfoxide (DMSO). The single crystal structure of the synthesized Al(PF) is revealed as Al(DMSO), and 0.25 M Al(PF) 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.
我们报道了六氟磷酸铝（Al(PF)）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)的单晶结构显示为Al(DMSO)，并获得了在DMSO中具有高离子电导率的0.25 M Al(PF)。通过核磁共振光谱和电喷雾电离质谱进一步证实了该电解质的纯度。然后，我们使用扫描电子显微镜和X射线光电子能谱深度剖析研究证明了在该电解质中铝沉积-剥离的可逆性。还通过气相色谱/电子电离质谱鉴定了铝沉积过程中涉及DMSO分解的寄生反应。
