Mechanochemical Processing of Natural Graphite under Different Atmospheres for Fabricating Electrodes Used in Electric Double-layer Capacitors
Mechanochemical Processing of Natural Graphite under Different Atmospheres for Fabricating Electrodes Used in Electric Double-layer Capacitors
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DOI：
10.5796/electrochemistry.19-63079
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发表时间：
2020-01-01
期刊：
影响因子：
2.5
通讯作者：
Suematsu, Shunzo
中科院分区：
文献类型：
--
作者：
Kado, Yuya;Soneda, Yasushi;Suematsu, Shunzo
本研究的重点是在不同气氛下使用行星式球磨机对天然石墨进行机械化学加工，并分析它们对加工后的双电层电容器（EDLC）石墨材料电化学行为的影响。氧气和/或氮气从研磨过程中使用的气氛中掺入碳骨架中。粉碎石墨的比表面积并不显着依赖于所使用的气氛。这些在不同气氛下加工的石墨粉被评估为在有机电解质双电层电容器中应用的电极材料。所有粉碎的石墨都显示出相当的电容，与所使用的气氛无关。考虑到粉碎石墨的后热处理去除氧表面官能团的效果，球磨引起的粉碎石墨表面官能团的变化并没有显着影响其作为EDLC电极材料的应用。 (C) 作者 2020。由 ECSJ 出版。
This study focused on the mechanochemical processing of natural graphite using a planetary ball mill under different atmospheres and analyzing their influence on the electrochemical behaviors of the processed graphite materials in electric double-layer capacitors (EDLCs). Oxygen and/or nitrogen were incorporated in the carbon framework from the atmosphere used during milling. Specific surface areas of the pulverized graphite did not significantly depend on the employed atmosphere. These pulverized graphites processed under different atmospheres were evaluated as electrode materials for application in EDLCs with an organic electrolyte. All the pulverized graphites showed comparable capacitances independently of the used atmospheres. Considering the effect of post-thermal treatment of the pulverized graphite to remove oxygen surface functionalities, changes in the surface functionalities of pulverized graphites caused by ball milling did not significantly influence their applications as electrode materials in EDLCs. (C) The Author(s) 2020. Published by ECSJ.