Large scale templated synthesis of single-layered graphene with a high electrical capacitance

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• 作者：Yi Wang^a ; ^b ; Hong Sun^a ; Ren Zhang^b ; Shaoning Yu^a ; Jilie Kong^a ; ^c ; ^{jlkong@fudan.edu.cn}
• 刊名：Carbon
• 出版年：2013
• 出版时间：March, 2013
• 年：2013
• 卷：53
• 期：Complete
• 页码：245-251
• 全文大小：1439 K

文摘

We demonstrate that single graphene sheets can be easily synthesized in large amounts by using zeolite Ni-MCM-22 as a catalyst and template. The graphene has a large surface area, high conductivity, and controllable two-dimensional sizes. Its use in supercapacitor electrode materials reveals excellent electrochemical double layer capacitance and galvanostatic charge/discharge properties with specific capacitances of 233 F/g in aqueous KOH.