Synthesis of Functionalized MWCNTs Decorated with Copper Nanoparticles and Its Application as a Sensitive Sensor for Amperometric Detection of H 2 O 2 | Zendy

Rezaei B. | Zendy; Askarpour N. | Zendy; Ghiaci M. | Zendy; Niyazian F. | Zendy; Ensafi A. A. | Zendy

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Synthesis of Functionalized MWCNTs Decorated with Copper Nanoparticles and Its Application as a Sensitive Sensor for Amperometric Detection of H 2 O 2

Author(s) -

Rezaei B.,

Askarpour N.,

Ghiaci M.,

Niyazian F.,

Ensafi A. A.

Publication year - 2015

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.201400612

Subject(s) - amperometry , ascorbic acid , detection limit , copper , cyclic voltammetry , nanocomposite , electrochemical gas sensor , carbon nanotube , nanoparticle , selectivity , redox , materials science , nuclear chemistry , buffer solution , electrode , analytical chemistry (journal) , electrochemistry , inorganic chemistry , chemistry , nanotechnology , chromatography , organic chemistry , catalysis , food science

Functionalized‐multiwall carbon nanotubes decorated with redox active copper nanoparticles have been fabricated for sensitive enzyme‐less H 2 O 2 detection. The new nanocomposite was characterized by Transmission electron microscopy, energy dispersive X‐ray analysis and cyclic voltammetry. The response of the modified electrode to H 2 O 2 was examined using amperometry at −0.45 V vs. Ag/AgCl in a buffer solution at pH 10.0. The developed sensor displayed linear concentration ranges of 0.5–10.0 and 10.0–10000.0 µmol L −1 with a detection limit of 0.3 µmol L −1 . The proposed sensor displayed good selectivity for H 2 O 2 detection in the presence of common interferences such as ascorbic acid.

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