title: Understanding the formation mechanism of graphene frameworks synthesized by solvothermal and rapid pyrolytic processes based on an alcohol-sodium hydroxide system.
abstract: The determination of ways to facilitate the 2D-oriented assembly of carbons into graphene instead of other carbon structures while restraining the π-π stacking interaction is a challenge for the controllable bulk synthesis of graphene, which is vital both scientifically and technically. In this study, graphene frameworks (GFs) are synthesized by solvothermal and rapid pyrolytic processes based on an alcohol-sodium hydroxide system. The evolution mechanism of GFs is investigated systematically. Under sodium catalysis, the abundant carbon atoms produced by the fast decomposition of solvothermal intermediate self-assembled to graphene. The existence of abundant ether bonds may be favorable for 3D graphene formation. More importantly, GFs were successfully obtained using acetic acid as the carbon source in the synthetic process, suggesting the reasonability of analyzing the formation mechanism. It is quite possible to determine more favorable routes to synthesize graphene under this cognition. The electrochemical energy storage capacity of GFs was also studied, which revealed a high supercapacitor performance with a specific capacitance of 310.7 F/g at the current density of 0.2 A/g.
authors.affiliation: †State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001 China.|‡University of Chinese Academy of Sciences, Beijing, 010049 China.
authors.forename: Huijuan
authors.initials: H
authors.lastname: Cui
authors.affiliation: †State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001 China.
authors.forename: Jianfeng
authors.initials: J
authors.lastname: Zheng
authors.affiliation: †State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001 China.|‡University of Chinese Academy of Sciences, Beijing, 010049 China.
authors.forename: Pengju
authors.initials: P
authors.lastname: Yang
authors.affiliation: †State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001 China.|‡University of Chinese Academy of Sciences, Beijing, 010049 China.
authors.forename: Yanyan
authors.initials: Y
authors.lastname: Zhu
authors.affiliation: †State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001 China.
authors.forename: Zhijian
authors.initials: Z
authors.lastname: Wang
authors.affiliation: †State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001 China.
authors.forename: Zhenping
authors.initials: Z
authors.lastname: Zhu
keywords: alcohol−sodium; formation mechanism; graphene; pyrolysis; solvothermal