Synthesis of mesoporous reduced graphene oxide by Zn particles for electrodes of supercapacitor in ionic liquid electrolyte
Synthesis of mesoporous reduced graphene oxide by Zn particles for electrodes of supercapacitor in ionic liquid electrolyte
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DOI：
10.1016/j.jiec.2016.09.011
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发表时间：
2017-01-25
影响因子：
6.1
通讯作者：
Hong, Young Taik
中科院分区：
文献类型：
--
作者：
Jeon, Hongrae;Han, Jae Hee;Hong, Young Taik
以1-乙基-3-甲基咪唑双(三氟甲基磺酰)亚胺(EMIM-TFSI)为电解液，在酸性条件下合成了氧化石墨烯(m-rGO)，并将其作为超级电容器电极。M-RGO在1Ag~(-1)下的比容为104.3 fg(-1)，循环5000次后比容量下降3%。高性能归因于显著的介孔，促进了电解液的质量传输。因此，我们报道了在离子液体电解液中合成m-rGO的方法，它具有更高的容量和耐久性，在电化学储能方面具有很大的潜力。(C)2016年韩国工业和工程化学学会。爱思唯尔出版，版权所有。
Mesoporous reduced graphene oxide (m-rGO) was synthesized by mixing Zn and graphene oxide in acidic conditions followed by ultrasonication and was investigated as a supercapacitor electrode in a 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (EMIM-TFSI) electrolyte. m-rGO shows a specific capacitance of 104.3 Fg(-1) at 1 Ag-1 and a decrease in capacitance of 3% after 5000 cycles. The high performance is attributed to the significant mesopores, facilitating mass transport of the electrolyte. Thus, we report the facile synthesis of m-rGO with enhanced capacitance and durability in an ionic liquid electrolyte that has great potential for electrochemical energy storage applications. (C) 2016 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.