Issue 15, 2012

Well-dispersed palladium nanoparticles on graphene oxide as a non-enzymatic glucose sensor

Abstract

Palladium nanoparticles with excellent uniform size and even distribution were prepared on graphene oxide (Pd NPs/GO) by using a simple and environmentally-friendly ultrasonic method in an ice bath. Ultrasonication time and composition ratios of GO and Pd influenced the morphology of the palladium nanoparticles and their electrocatalytic performance. Transmission electron microscopy (TEM) and electrochemical characterization demonstrated that GO acted as a good supportive substrate for controlling the size and activity of palladium nanoparticles. The optimized nanocomposite exhibited high electrochemical activity for electrocatalytic oxidation of glucose in alkaline medium. The Pd NPs/GO nanocomposite was developed as a non-enzymatic biosensor for the determination of glucose with a linear range of 0.2–10 mM, which is nearly insusceptible to common electroactive interfering species. This simple and effective composite platform could potentially be extended to other metal/graphene nanomaterials, and have broad applications in biosensing, fuel cells, and other fields.

Graphical abstract: Well-dispersed palladium nanoparticles on graphene oxide as a non-enzymatic glucose sensor

Supplementary files

Article information

Article type
Paper
Submitted
08 Mar 2012
Accepted
22 Apr 2012
First published
25 Apr 2012

RSC Adv., 2012,2, 6245-6249

Well-dispersed palladium nanoparticles on graphene oxide as a non-enzymatic glucose sensor

Q. Wang, X. Cui, J. Chen, X. Zheng, C. Liu, T. Xue, H. Wang, Z. Jin, L. Qiao and W. Zheng, RSC Adv., 2012, 2, 6245 DOI: 10.1039/C2RA20425H

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