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Gao LH, Wang Z, Bai LJ, et al. Preparation, electrochemical properties and electrocatalytic activity of Zn-substituted tungstoborate modified electrode. J Nanosci Nanotechnol. 2014;14(5):3422-7doi: 10.1166/jnn.2014.7963.
Gao, L. H., Wang, Z., Bai, L. J., & Wang, Y. B. (2014). Preparation, electrochemical properties and electrocatalytic activity of Zn-substituted tungstoborate modified electrode. Journal of nanoscience and nanotechnology, 14(5), 3422-7. https://doi.org/10.1166/jnn.2014.7963
Gao, Li-Hua, et al. "Preparation, electrochemical properties and electrocatalytic activity of Zn-substituted tungstoborate modified electrode." Journal of nanoscience and nanotechnology vol. 14,5 (2014): 3422-7. doi: https://doi.org/10.1166/jnn.2014.7963
Gao LH, Wang Z, Bai LJ, Wang YB. Preparation, electrochemical properties and electrocatalytic activity of Zn-substituted tungstoborate modified electrode. J Nanosci Nanotechnol. 2014 May;14(5):3422-7. doi: 10.1166/jnn.2014.7963. PMID: 24734563.
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J Nanosci Nanotechnol. 2014 May;14(5):3422-7. doi: 10.1166/jnn.2014.7963.

Preparation, electrochemical properties and electrocatalytic activity of Zn-substituted tungstoborate modified electrode.

Journal of nanoscience and nanotechnology

Li-Hua Gao, Zheng Wang, Li-Jie Bai, Yi-Bo Wang

PMID: 24734563 DOI: 10.1166/jnn.2014.7963

Abstract

3-Aminopropyltrimethoxysilane (APTMS) was covalently grafted on a glassy carbon electrode (GCE) by silicon-oxygen bonds formation. The APTMS-modified GCE was used as a suitable charged substrate to fabricate Keggin Zn-substituted tungstoborate (BW11Zn)-consisting monolayer film through layer-by-layer assembly based on the electrostatic attraction. This modification strategy is proven to be a general one suitable for anchoring many kinds of POMs on the APTMS-modified GCE. The APTMS/BW11Zn film obtained on GCE is electrochemically active in acid aqueous solutions and exhibited three pairs of well defined, stable and quasi-reversible cyclic voltammetry peaks in the pH range 0-2. The anodic and cathodic peak currents are linearly proportional to the scan rate in the 200-1000 mV s(-1), indicating a surface confined electrode process. The formal potentials of BW11Zn film, E0 versus saturated calomel electrode (SCE), are -0.27, -0.43, -0.55 V in pH 1 H2SO4 solution and changed linearly with the slope of 44, 63, and 60 mV/pH in the pH range 0-2, respectively. The BW11Zn/APTMS/GC electrode shows good catalytic activity for the reduction of BrO3-, NO2- and H2O2.

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