Jump to main content
Jump to site search


A simple strategy toward hierarchically porous graphene/nitrogen-rich carbon foams for high-performance supercapacitors

Author affiliations

Abstract

Three-dimensional nitrogen-rich porous carbon materials (NPCs), with advantageously tuned physicochemical properties through nitrogen functionalities, have become the research hotspot of energy storage. As electrodes for supercapacitors, NPCs fabricated via a facile strategy are highly desirable to improve the limited performance of N-doped species and obtain high specific capacitance. Herein, a graphene/nitrogen-rich carbon foam with a 3D hierarchically porous architecture has been achieved through assembling graphene oxide sheets into melamine foam. The obtained foam with meso- and micro-pores, nitrogen-enriched content (11.6 at%), and a large surface area (943.7 m2 g−1) delivers enhanced energy storage capabilities of 324, 229, and 196 F g−1 at current densities of 0.1, 1, and 10 A g−1 in a 6 mol L−1 KOH electrolyte, respectively. Moreover, the as-prepared material shows an appreciable capacitance of up to 213 F g−1 at 0.1 A g−1, along with excellent cycling stability (99% retention after 10 000 cycles in a PVA/KOH gel electrolyte) in the related fabricated symmetric solid-state supercapacitors.

Graphical abstract: A simple strategy toward hierarchically porous graphene/nitrogen-rich carbon foams for high-performance supercapacitors

Back to tab navigation

Supplementary files

Publication details

The article was received on 14 Oct 2017, accepted on 01 Nov 2017 and first published on 02 Nov 2017


Article type: Paper
DOI: 10.1039/C7TA09039K
Citation: J. Mater. Chem. A, 2017, Advance Article
  •   Request permissions

    A simple strategy toward hierarchically porous graphene/nitrogen-rich carbon foams for high-performance supercapacitors

    Y. Chen, Z. Xiao, Y. Liu and L. Fan, J. Mater. Chem. A, 2017, Advance Article , DOI: 10.1039/C7TA09039K

Search articles by author

Spotlight

Advertisements