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http://dx.doi.org/10.4191/kcers.2013.50.6.539

Synthesis and Li Electroactivity of MnS/Carbon Nanotube Composites  

Lee, Gwang-Hee (Department of Energy Systems Research, Ajou University)
Min, Kyung-Mi (Department of Energy Systems Research, Ajou University)
Kim, Dong-Wan (Department of Energy Systems Research, Ajou University)
Publication Information
Journal of the Korean Ceramic Society / v.50, no.6, 2013 , pp. 539-544 More about this Journal
Abstract
A simple synthetic process is demonstrated for the preparation of MnS/carbon nanotube (CNT) composites for Li ion battery electrodes. CNTs were initially treated using a strong acid solution to generate carboxylate ions ($-COO^-$) on their surfaces. The MnS/CNT composites were synthesized by a polyvinyl-pyrrolidone-assisted hydrothermal method in the presence of as-functionalized CNTs. The phase and morphology of the MnS/CNT composites and pure MnS microspheres were characterized using X-ray diffraction and high-resolution transmission electron microscopy. Furthermore, the Li electroactivity levels of the MnS/CNT composites and MnS microspheres were investigated using cyclic voltammetry and galvanostatic cycling. The MnS/CNT composite electrodes showed higher specific capacities exceeding 365 $mA\;h\;g^{-1}$ at a C/10 current rate and enhanced cyclic performance compared to pure MnS microspheres.
Keywords
MnS microspheres; Functionalized CNT; Hydrothermal process; Li ion battery;
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