Journal of Solid State Electrochemistry

, Volume 16, Issue 3, pp 1099–1104

Electrocatalytic oxidation of glucose on nanoporous gold membranes

Original Paper

DOI: 10.1007/s10008-011-1501-x

Cite this article as:
Li, Q., Cui, S. & Yan, X. J Solid State Electrochem (2012) 16: 1099. doi:10.1007/s10008-011-1501-x

Abstract

With characteristic of structural integrity and high surface area, nanoporous gold (NPG) prepared by dealloying method is proposed to be a highly sensitive catalyst for glucose electrooxidation. It can be found that a-NPG which obtained by electrochemical corrosion method has the highest sensitivity for glucose electrooxidation among the three studied samples. Under alkaline conditions, the catalytic current density of a-NPG is over 1.5 times and 17 times higher than that of f-NPG (prepared by free corrosion) and poly-Au electrode, respectively. Using a-NPG sample for glucose detection, the obtained minimum sensible concentration are 413 nM in alkaline media and 1 μM in neutral solutions. The a-NPG electrode also shows stable recovery and reproducibility characteristics. These results indicate that NPG may work as an efficient electrode material for electrochemical sensors and a promising catalyst for alkaline glucose fuel cells.

Keywords

Glucose oxidationNanoporous goldElectrocatalysisDetectionNonenzymatic sensor

Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  1. 1.School of Chemistry and Chemical EngineeringShandong UniversityJinanChina
  2. 2.School of Chemistry and BioscienceYili Normal UniversityXinjiangChina