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Fabrication of hydrazine chemical sensor based on facile synthesis of doped NZO nanostructure materials

Abstract

In this approach, nickel doped zinc oxide (NZO) nanostructure materials were synthesized by the solution method in basic phase. As-grown NZO was characterized in details by Field Emission Scanning Electron Microscopy (FE-SEM), Energy Dispersive X-Ray Spectroscopy (EDS), X-ray electron microscopy (XPS), X-ray Diffraction (XRD), Ultaviolet-visible spectroscopy (UV/vis.), Brunauer-Emmett-Teller (BET), Impedance spectroscopy (EIS), and Fourier transform Infrared spectroscopy (FTIR). Glassy carbon electrode (GCE) was modified by NZO as NZO/Nafion/GCE by drop-coating method. Electrocatalytic activities are also studied by using impedence spectroscopy (EIS) as well as cyclic voltammetry (CV) with NZO/Nafion/GCE in ferrocyanide couples. Then modified electrode was employed to determine the hydrazine (HZ) by a simple and reliable electrochemical approach. Carcinogenic HZ was nominated as a target pollutant by the selectivity investigation. In this investigation for HZ concentration range in 0.20 nM to 0.02 M, the calibration plot was found linear (r2 = 0.9996). It was also calculated the sensitivity and Limit of Detection (LOD) values obtained as 3.76 µAµM-1cm-2 and 1.7 ± 0.1 pM (S/N = 3) respectively.

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Article information


Submitted
29 May 2020
Accepted
29 Jun 2020
First published
29 Jun 2020

New J. Chem., 2020, Accepted Manuscript
Article type
Paper

Fabrication of hydrazine chemical sensor based on facile synthesis of doped NZO nanostructure materials

M. M. Rahman, J. Ahmed, A. M. Asiri and K. A. Alamry, New J. Chem., 2020, Accepted Manuscript , DOI: 10.1039/D0NJ02719G

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