用于镁电池的二氧化钛/石墨烯纳米片阴极的电学和电化学性能

M.H. Makled , Y.M. Arabi , E. Sheha , S. Arfa , I.S. Yahia , F. Salman
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引用次数: 1

摘要

采用简单的球磨机工艺合成了TiO2/石墨烯纳米片(GNP)纳米复合阴极。二氧化钛锐钛矿纳米颗粒大小约为16纳米,被封装在二维石墨烯基体中。利用x射线衍射(XRD)、DSC、阻抗谱和扫描电镜(SEM)对合成的样品进行了表征。石墨烯纳米片不仅可以降低电荷传递阻力,还可以帮助吸收由二价插入引起的变形。研究了金属镁在含高氯酸镁的二甲基亚砜溶液中的电化学行为。循环伏安曲线上明显的氧化还原峰证实了Mg2+通过简单的电解质溶液插入/萃取到TiO2中。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Electrical and electrochemical properties of titanium dioxide /graphene nano platelets cathode for magnesium battery applications

TiO2/graphene nano platelets (GNP) nanocomposite cathodes have been synthesized through a simple ball mill process. TiO2 anatase nanoparticles, around 16 nm in size, were encapsulated in the 2D graphene matrix. The synthesized samples are characterized using x-ray diffraction (XRD), DSC, impedance spectroscopy, and scanning electron microscope (SEM). The graphene nano platelets act not only to reduce the charge transfer resistance but can help to absorb deformation caused by divalent insertion. The electrochemical behavior of Mg metal was tested in dimethyl sulfoxide solution containing magnesium perchlorate salt. The obvious redox peaks on the cyclic voltammetric curves confirm Mg2+ inserts/extracts into/from TiO2 through our simple electrolyte solution.

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