A novel hydrogen peroxide sensor based on multiwalled carbon nanotubes/poly(pyrocatechol violet)‐modified glassy carbon electrode | Zendy

Fang Bin | Zendy; Zhang Na | Zendy; Zhang Wei | Zendy; Gu Aixia | Zendy; Wang Guangfeng | Zendy

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A novel hydrogen peroxide sensor based on multiwalled carbon nanotubes/poly(pyrocatechol violet)‐modified glassy carbon electrode

Author(s) -

Fang Bin,

Zhang Na,

Zhang Wei,

Gu Aixia,

Wang Guangfeng

Publication year - 2009

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.29929

Subject(s) - materials science , hydrogen peroxide , cyclic voltammetry , carbon nanotube , electrochemistry , electrode , electrochemical gas sensor , detection limit , catalysis , chemical engineering , nuclear chemistry , nanotechnology , chemistry , organic chemistry , chromatography , engineering

In this work, a new hydrogen peroxide (H 2 O 2 ) sensor was reported based on electropolymerizing pyrocatechol violet (PCV) on a glassy carbon electrode modified with multiwalled carbon nanotubes (MWCNTs). The modified electrode was characterized by cyclic voltammetry (CV) and scanning electron micrography. The result of electrochemical experiments showed a favorable catalytic activity toward the reduction of H 2 O 2 at −0.4 V with a linear response range from 2.0 μ M to 2.4 m M and a detection limit of 0.7 μ M (at a S / N = 3). The well catalytic activity of proposed sensor could be attributed to the poly‐PCV/MWCNTs composite film on the electrocatalytic reduction of H 2 O 2 . In addition, the sensor also exhibited a high sensitivity, good stability, and reproducibility. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009

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