Nitrogen-Doped Graphene Materials with High Electrical Conductivity Produced by Electrochemical Exfoliation of Graphite Foil.

ABSTRACT: Nitrogen-doped graphene-based materials are of utmost importance in sensing and energy conversion devices due to their unique physicochemical properties. However, the presence of defects such as pyrrolic nitrogen and oxygenated functional groups reduces their electrical conductivity. Herein, a two-step approach based on the electrochemical exfoliation of graphite foils in aqueous mixed electrolytes followed by thermal reduction at 900 °C is used to prepare high-quality few layers of N-doped graphene-based materials. The exfoliations were conducted in 0.1 M (NH₄)₂SO₄ or H₂SO₄ and HNO₃ (5 mM or 0.1 M) electrolytes mixtures and the HNO₃ vol% varied. Chemical analysis demonstrated that the as-prepared graphene oxides

SUBMITTER: Kammoun H 

PROVIDER: S-EPMC10780345 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature