In-situ synthesis of graphene/nitrogen-doped ordered mesoporous carbon nanosheet for supercapacitor application

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• 作者：Yanfang Song ; Jun Yang ; Ke Wang ; Servane Haller ; Yonggang Wang ; Congxiao Wang ; Yongyao Xia ; ^{yyxia@fudan.edu.cn" class="auth_mail" title="E-mail the corresponding author}
• 刊名：Carbon
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：96
• 期：Complete
• 页码：955-964
• 全文大小：2396 K

文摘

A new graphene (GA)/nitrogen-doped ordered mesoporous carbon (NMC) nanosheet was synthesized in situ by a triblock-copolymer assembly directly on graphene oxide. The strong interaction of NMC and GA in the form of N–O bonding limits GA aggregation. The resulting composite GA/NMC-95% with the NMC mass content of 95% shows a high surface area (1569 m² g⁻¹) and good electronic conductivity. As an electrode material for supercapacitor in 1 mol L⁻¹ H₂SO₄ electrolyte, it delivers specific capacitance as high as 377 F g⁻¹ at 0.2 A g⁻¹, outstanding rate capability and excellent cycling stability.