A novel route to fabricate high-density graphene assemblies for high-volumetric-performance supercapacitors: effect of cation pre-intercalation. Issue 43 (14th April 2016)

• Record Type: Journal Article
• Authors: Liu, Daoqing; Jia, Zheng; Wang, Dianlong
• Is Part Of: RSC advances. Volume 6:Issue 43(2016)
• Page Start: 36971
• Page End: 36977
• Publication Date: 2016-04-14
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra03897b
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : The pre-intercalated cations induce the fabrication of high-density graphene assemblies with high supercapacitive performances due to the contribution of ultramicropores. Abstract : A simple procedure of cation pre-intercalation is incorporated with the ordinary graphene oxide thermal reduction method, readily producing graphene assemblies with a compact laminated structure and enhanced density, which exhibit anomalously high gravimetric capacitances and outstanding volumetric performances (a volumetric energy density of 26 W h L −1 in the aqueous electrolyte), primarily due to the contribution of ultramicropores.