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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 955-959Electroabsorbing Hemoglobin on Nano-Silver/Carbon...

Electroabsorbing Hemoglobin on Nano-Silver/Carbon Nanotube Composite Films Electrode for Oxygen Electroanalysis

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Abstract:

A novel electrode has been fabricated with electroabsorbing hemoglobin on the nanosilver coated carbon nanotubes modified glassy carbon electrode (Hb/Ag/CNT/GC). The modifed electrodes showed an excellent electrocatalytic activity for reduction of dissolved oxygen. The peak current is linear with oxygen concentration in the range from 1.63×10^-⁶ to 2.58×10^-⁴ mol.L^-1 with a calculated detection limit of 9.78×10^-⁷ mol.L^-1 at a signal-to-noise rate of 3, the linear regression equation is i=0.0478C+0.0331 (R²=0.994; i: μA; C: the concentration of oxygen, μmol.L^-1). So, the developed electrode was used to determination of oxygen in the water and actual samples and satisfactory results were obtained. The Hb/Ag/CNTs composites may be a potential cathode material of the air battery.

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Periodical:

Advanced Materials Research (Volumes 955-959)

Pages:

1120-1125

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.955-959.1120

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Online since:

June 2014

Authors:

Ping Hua Yang*

Keywords:

Electroabsorbing, Electroanalysis, Hemoglobin, Nano-Silver/Carbon Nanotube Composite Films Electrode, Oxygen

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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