TY - JOUR
T1 - Hydrothermal synthesis of cobalt oxide porous nanoribbons anchored with reduced graphene oxide for hydrogen peroxide detection
AU - Zhang, Xinmeng
AU - Li, Kezhi
AU - Li, Hejun
AU - Lu, Jinhua
AU - Fu, Qiangang
AU - Zhang, Leilei
N1 - Publisher Copyright:
© 2016, Springer Science+Business Media Dordrecht.
PY - 2016/8/1
Y1 - 2016/8/1
N2 - A new Co3O4-reduced graphene oxide (Co3O4–rGO) nanostructure was successfully prepared by hydrothermal-synthesized Co3O4 porous nanoribbons with an approximate length of 6–17 μm, a width of 21–737 nm, and a thickness of 33–80 nm hybridizing with reduced graphene oxide. The electrochemical properties of the Co3O4–rGO-modified electrode were investigated by the cyclic voltammograms and amperometric current–time method. The modified electrode shows high electrochemical activity for the catalytic reduction and detection of H2O2 in alkaline medium. The nonenzymatic hydrogen peroxide sensor exhibits wide linear range of 1–18.5 mM (R = 0.99439), high adsorption amount about 3.24 × 10−6 mol/cm2, and a low detection limit of 5.35 × 10−7 M (S/N = 3). In addition, the sensor has a fast response (<5 s), good long-term stability, excellent repeatability (3.22 % relative standard deviation), and high selectivity. These outstanding properties of the sensor derive from their particular hybrid structure and synergistic effects between rGO and Co3O4.
AB - A new Co3O4-reduced graphene oxide (Co3O4–rGO) nanostructure was successfully prepared by hydrothermal-synthesized Co3O4 porous nanoribbons with an approximate length of 6–17 μm, a width of 21–737 nm, and a thickness of 33–80 nm hybridizing with reduced graphene oxide. The electrochemical properties of the Co3O4–rGO-modified electrode were investigated by the cyclic voltammograms and amperometric current–time method. The modified electrode shows high electrochemical activity for the catalytic reduction and detection of H2O2 in alkaline medium. The nonenzymatic hydrogen peroxide sensor exhibits wide linear range of 1–18.5 mM (R = 0.99439), high adsorption amount about 3.24 × 10−6 mol/cm2, and a low detection limit of 5.35 × 10−7 M (S/N = 3). In addition, the sensor has a fast response (<5 s), good long-term stability, excellent repeatability (3.22 % relative standard deviation), and high selectivity. These outstanding properties of the sensor derive from their particular hybrid structure and synergistic effects between rGO and Co3O4.
KW - CoO–rGO nanocomposite
KW - Electrochemical device
KW - HO detection
KW - Porous nanoribbons
KW - Reduced graphene oxide
KW - Sensor
UR - http://www.scopus.com/inward/record.url?scp=84981738069&partnerID=8YFLogxK
U2 - 10.1007/s11051-016-3544-5
DO - 10.1007/s11051-016-3544-5
M3 - 文章
AN - SCOPUS:84981738069
SN - 1388-0764
VL - 18
JO - Journal of Nanoparticle Research
JF - Journal of Nanoparticle Research
IS - 8
M1 - 232
ER -