Journal of Solid State Electrochemistry

, Volume 16, Issue 3, pp 1099–1104

Electrocatalytic oxidation of glucose on nanoporous gold membranes

Original Paper

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 oxidation Nanoporous gold Electrocatalysis Detection Nonenzymatic 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

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