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International Journal of Electrochemistry
Volume 2011, Article ID 395724, 5 pages
http://dx.doi.org/10.4061/2011/395724
Research Article

Cubic Copper Hexacyanoferrates Nanoparticles: Facile Template-Free Deposition and Electrocatalytic Sensing Towards Hydrazine

1College of Material Science and Engineering, Sichuan University, Chengdu, Sichuan 610064, China
2State Key laboratory of Powder Metallurgy Research Institute, Central South University, Changsha 410083, China
3Division of Chemistry and Environmental Science, School of Science and the Environment, Manchester Metropolitan University, Manchester M1 5GD, UK

Received 17 January 2011; Accepted 24 February 2011

Academic Editor: Kenneth I. Ozoemena

Copyright © 2011 Xingxing Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Cubic copper hexacyanoferrate (CuHCF) nanoparticles prepared via electrolytic deposition are presented with their morphology and crystalline structure characterized with SEM and XRD. The advantage of this methodology is that it allows the fabrication of uniform cubic nanoparticles with permeable structures onto the desired underlying electrode substrate. It was observed that the CuHCF film acts as a permeable membrane for cations such as K+, Na+, Li+, and N H 4 + with a selection order of K+ > Li+ > N H 4 + > Na+. Furthermore, the analytical utility of these cubic-like CuHCF morphologies supported on a glassy carbon electrode was evaluated towards the electrochemical oxidation of hydrazine which was found to exhibit a linear response over the range 66  𝜇 M to 17 mM with a detection limit corresponding to 16.5  𝜇 M.