Silver-functionalized multi-wall carbon nanotubes composite electrode for non-enzymatic detection of glycerol

Author

Pop, Aniela ; Manea, Florica ; Remes, Adriana ; Baciu, Anamaria ; Orha, Corina ; Vaszilcsin, Nicolae ; Picken, Stephen ; Schoonman, Joop

Author_Institution

Fac. of Ind. Chem. & Environ. Eng., Politeh. Univ. of Timisoara, Timisoara, Romania

fYear

2011

fDate

28-31 Oct. 2011

Firstpage

581

Lastpage

584

Abstract

In this paper, the obtaining, characterization and testing of a new electrocatalyst composite electrode based on multi-wall carbon nanotubes and silver-exchanged natural zeolite (MWCNT-AgZ) for non-enzymatic oxidation and determination of glycerol is reported. The electroanalytical sensitivity for the determination of glycerol at the MWCNT-AgZ electrode ranged from 0.051 to 0.386 mA/mM as a function of the electrochemical technique used, and the highest sensitivity was reached for linear-sweep voltammetry. The recovery studies indicated the possibility to determine glycerol in real samples.

Keywords

biomedical electrodes; biomedical measurement; carbon nanotubes; catalysts; electrochemical sensors; nanobiotechnology; nanosensors; oxidation; sensitivity; voltammetry (chemical analysis); zeolites; MWCNT-AgZ electrode; electroanalytical sensitivity; electrocatalyst composite electrode; electrochemical technique; glycerol determination; linear-sweep voltammetry; nonenzymatic glycerol detection; nonenzymatic oxidation; silver-exchanged natural zeolite; silver-functionalized multiwall carbon nanotube composite electrode; Carbon nanotubes; Electric potential; Electrodes; Materials; Oxidation; Sensitivity; Silver;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensors, 2011 IEEE

Conference_Location

Limerick

ISSN

1930-0395

Print_ISBN

978-1-4244-9290-9

Type

conf

DOI

10.1109/ICSENS.2011.6127009

Filename

6127009