Nitrogen and sulfur co-doped graphene aerogel for high performance supercapacitors.

ABSTRACT: The development of high energy density and power density supercapacitors is very necessary in energy storage and application fields. A key factor of such devices is high-performance electrode materials. In this work, nitrogen and sulfur co-doped graphene aerogels (N/S-GA) were synthesized using graphene oxide as the precursor and 2-mercapto-1-methylimidazole as both the reducing agent and the N/S doping agent. The pore size distribution of the as-prepared N/S-GA was measured and the N/S-GA possesses a hierarchical porous structure. As an electrode material of supercapacitors, the N/S-GA could provide a suitable structure for charge accommodation and a short distance for ion transport. When 1-ethyl-3-methylimidazolium tetrafluoroborate ([Emim]BF₄) ionic liquid was used as the ele

SUBMITTER: Lu Z 

PROVIDER: S-EPMC9080594 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature