Browse > Article
http://dx.doi.org/10.5229/JKES.2010.13.4.251

Electrocatalytic Reduction of Hydrogen Peroxide at Nanoporous Gold Surfaces  

Park, You-Hoon (Department of Chemistry, Chungbuk National University)
Kim, Jong-Won (Department of Chemistry, Chungbuk National University)
Publication Information
Journal of the Korean Electrochemical Society / v.13, no.4, 2010 , pp. 251-255 More about this Journal
Abstract
We report on the electrocatalytic reduction of hydrogen peroxide at nanoporous gold (NPG) surfaces. Various NPG surfaces with different surface structure were prepared by changing the conditions of electrodeposition for Ag-Au layers such as the concentration ratios of $KAu(CN)_2$ over $KAg(CN)_2$ and deposition charges. The effects of different electrochemical conditions on the electrocatalysis of $H_2O_2$ reduction were investigated. The NPG surfaces exhibited sensitive amperometric responses for $H_2O_2$ reduction, from which calibration plots with higher sensitivity than a bare Au surface were obtained.
Keywords
Nanoporous gold; Electrocatalysis; Hydrogen peroxide; Amperometric detection;
Citations & Related Records
연도 인용수 순위
  • Reference
1 M. C. Daniel and D. Astruc, 'Gold nanoparticles: Assembly, supramolecular chemistry, quantum-size-related properties, and applications toward biology, catalysis, and nanotechnology' Chem. Rev., 104, 293 (2004).   DOI
2 A. Wittstock, V. Zielasek, J. Biener, C. M. Friend, and M. Baumer, 'Nanoporous Gold Catalysts for Selective Gas-Phase Oxidative Coupling of Methanol at Low Temperature' Science, 327, 319 (2010).   DOI
3 Y. Ding and J. Erlebacher, 'Nanoporous metals with controlled multimodal pore size distribution' J. Am. Chem. Soc., 125, 7772 (2003).   DOI
4 J. Erlebacher, M. J. Aziz, A. Karma, N. Dimitrov, and K. Sieradzki, 'Evolution of nanoporosity in dealloying' Nature, 410, 450 (2001).   DOI
5 Z. Liu, L. Huang, L. Zhang, H. Ma, and Y. Ding, 'Electrocatalytic oxidation of d-glucose at nanoporous Au and Au-Ag alloy electrodes in alkaline aqueous solutions' Electrochim. Acta, 54, 7286 (2009).   DOI
6 L. H. Qian, X. Q. Yan, T. Fujita, A. Inoue, and M. W. Chen, 'Surface enhanced Raman scattering of nanoporous gold: Smaller pore sizes stronger enhancements' Appl. Phys. Lett., 90, (2007).
7 C. X. Ji and P. C. Searson, 'Synthesis and characterization of nanoporous gold nanowires' J. Phys. Chem. B, 107, 4494 (2003).   DOI
8 Z. Liu, J. Du, C. Qiu, L. Huang, H. Ma, D. Shen, and Y. Ding, 'Electrochemical sensor for detection of p-nitrophenol based on nanoporous gold' Electrochem. Commun., 11, 1365 (2009).   DOI
9 H. J. Qiu, G. P. Zhou, G. L. Ji, Y. Zhang, X. R. Huang, and Y. Ding, 'A novel nanoporous gold modified electrode for the selective determination of dopamine in the presence of ascorbic acid' Colloid Surf. B-Biointerfaces, 69, 105 (2009).   DOI
10 K. C. Hu, D. X. Lan, X. M. Li, and S. S. Zhang, 'Electrochemical DNA Biosensor Based on Nanoporous Gold Electrode and Multifunctional Encoded DNA-Au Bio Bar Codes' Anal. Chem., 80, 9124 (2008).   DOI
11 B. Seo and J. Kim, 'Electrooxidation of Glucose at Nanoporous Gold Surfaces: Structure Dependent Electrocatalysis and Its Application to Amperometric Detection' Electroanalysis, 22, 939 (2010).   DOI   ScienceOn
12 R. Zeis, T. Lei, K. Sieradzki, J. Snyder, and J. Erlebacher, 'Catalytic reduction of oxygen and hydrogen peroxide by nanoporous gold' J. Catal., 253, 132 (2008).   DOI
13 S. Trasatti and O. A. Petrii, 'Real surface-area measurements in electrochemistry' Pure Appl. Chem., 63, 711 (1991).   DOI