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Synthesis and Electrochemical Biosensing Properties of Hierarchically Porous Nitrogen‐Doped Graphene Microspheres
Author(s) -
Sun Dongfei,
Yang Juan,
Yan Xingbin
Publication year - 2015
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201402323
Subject(s) - graphene , materials science , electrochemistry , chemical vapor deposition , hydrothermal circulation , chemical engineering , doping , nanotechnology , nitrogen , electrode , crystallization , glucose oxidase , porosity , hydrothermal synthesis , biosensor , chemistry , optoelectronics , organic chemistry , composite material , engineering
Three‐dimensional nitrogen‐doped graphene microspheres (3D NGSs) were prepared by using integrated precursor‐assisted chemical vapor deposition and the hydrothermal method. The 3D NGSs, with an interconnected network structure, show a high crystallization degree, abundant pore channels, and appropriate nitrogen doping. Electrochemical studies confirm that the glucose oxidase/NGSs electrode shows excellent catalytic activity with a high sensitivity of 15.89 μA mM −1 cm −2 , over a wide linear range of 0.1–3.7 m M , and fast response time of 3.6 s.
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