Noncovalent Assembly of Picket‐Fence Porphyrin on Carbon Nanotubes as Effective Peroxidase‐Like Catalysts for Detection of Hydrogen Peroxide in Beverages | Zendy

Li XiaoRong | Zendy; Wang Bo | Zendy; Xu JingJuan | Zendy; Chen HongYuan | Zendy

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Noncovalent Assembly of Picket‐Fence Porphyrin on Carbon Nanotubes as Effective Peroxidase‐Like Catalysts for Detection of Hydrogen Peroxide in Beverages

Author(s) -

Li XiaoRong,

Wang Bo,

Xu JingJuan,

Chen HongYuan

Publication year - 2011

Publication title -

electroanalysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.574

H-Index - 128

eISSN - 1521-4109

pISSN - 1040-0397

DOI - 10.1002/elan.201100552

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

A newly developed electrochemical sensor for determination of hydrogen peroxide (H 2 O 2 ) in beverages using a water‐insoluble picket‐fence porphyrin (FeTpivPP) functionalized multiwalled carbon nanotubes (MWNTs) is demonstrated. Introduction of FeTpivPP on MWNTs led to enhanced electron transfer. As a new platform in electrochemical analysis, the resultant sensor showed excellent electrocatalytic activity toward the reduction of H 2 O 2 due to the synergic effect between MWNTs and FeTpivPP, thus leading to highly sensitive amperometric sensing of H 2 O 2 with a detection limit of 0.05 µmol L −1 . The developed method is successfully used to detect H 2 O 2 in beverages and shows great promise for routine sensing applications.

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