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Nitrogen and Phosphorous Co-Doped Graphene Monolith for Supercapacitors

Nitrogen and Phosphorous Co-Doped Graphene Monolith for Supercapacitors

Yangyang Wen, Thomas E Rufford, Denisa Hulicova-Jurcakova, Lianzhou Wang

ChemSusChem. 2016 Mar 8;9(5):513-20.

PMID: 26834002

Abstract:

The co-doping of heteroatoms has been regarded as a promising approach to improve the energy-storage performance of graphene-based materials because of the synergetic effect of the heteroatom dopants. In this work, a single precursor melamine phosphate was used for the first time to synthesise nitrogen/phosphorus co-doped graphene (N/P-G) monoliths by a facile hydrothermal method. The nitrogen contents of 4.27-6.58 at% and phosphorus levels of 1.03-3.00 at% could be controlled by tuning the mass ratio of melamine phosphate to graphene oxide in the precursors. The N/P-G monoliths exhibited excellent electrochemical performances as electrodes for supercapacitors with a high specific capacitance of 183 F g(-1) at a current density of 0.05 A g(-1), good rate performance and excellent cycling performance. Additionally, the N/P-G electrode was stable at 1.6 V in 1 m H2 SO4 aqueous electrolyte and delivered a high energy density of 11.33 Wh kg(-1) at 1.6 V.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
LS76152	Nitrogen/Phosphorus co-doped graphene			Price

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