Article ID Journal Published Year Pages File Type
7075604 Bioresource Technology 2015 6 Pages PDF
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 7.41 at.% endows the nitrogen-doped graphene electrode material with super capacitance up to 170 F g−1, high rate performance, and excellent cycling stability.
Related Topics
Physical Sciences and Engineering Chemical Engineering Process Chemistry and Technology
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