Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7075604 | Bioresource Technology | 2015 | 6 Pages |
Abstract
Nitrogen-doped graphene with in-plane porous structure was fabricated by simple co-pyrolysis of lignosulfonate and graphene oxide in the presence of urea. Lignosulfonate first performs as a dispersant adsorbed on the surface of graphene oxide to prevent the aggregation of graphene oxide sheets for preparing homogeneous nitrogen-containing precursor, and then acts as a porogen to render graphene sheets with nanopores in the pyrolysis process of the nitrogen-containing precursor. Urea was used as a nitrogen source to incorporate nitrogen atoms into graphene basal plane. The special nanoporous structure combined with nitrogen content of 7.41Â at.% endows the nitrogen-doped graphene electrode material with super capacitance up to 170Â FÂ gâ1, high rate performance, and excellent cycling stability.
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Authors
Hai-Bo Zhao, Wen-Dong Wang, Qiu-Feng Lü, Ting-Ting Lin, Qilang Lin, Haijun Yang,