Synthesis of few-layer N-doped graphene from expandable graphite with melamine and its application in supercapacitors

Publication date: Available online 18 April 2019Source: Chinese Chemical LettersAuthor(s): Yunpeng Wu, Xiaoyang Liu, Dandan Xia, Qiushi Sun, Deyang Yu, Shuanggan Sun, Xilong Liu, Yifei Teng, Weige Zhang, Xudong ZhaoAbstractIn this paper, we introduced a novel method to prepare the few-layer nitrogen-doped graphene (FNG) from expandable graphite with melamine. The super-capacitive properties of FNG were thoroughly characterized by a three-electrode system, and the results showed the FNG electrode achieved a specific capacitance as high as 83.8 m F/cm2 together with excellent cycling stability. This method could be a novel approach to combine the pseudo-capacitors and electric double layer capacitors.Graphical AbstractFew-layer N-doped graphene synthesis from melamine and expandable graphite exhibited extraordinary specific capacitance together with excellent cycling stability.

Source: Chinese Chemical Letters - April 19, 2019 Category: Chemistry Source Type: research