Document Details

Document Type : Article In Journal 
Document Title :
Chemical sensor development based on polycrystalline gold electrode embedded low-dimensional Ag2O nanoparticles
Chemical sensor development based on polycrystalline gold electrode embedded low-dimensional Ag2O nanoparticles
 
Document Language : English 
Abstract : We have prepared low-dimensional silver oxide nanoparticles (NPs) by a sono-chemical method using reducing agents in alkaline medium. The resulting NPs were characterized by UV/vis and FT-IR spectroscopy, X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), X-ray energy dispersive spectrometry (XEDS), and field-emission scanning electron microscopy (FESEM). They were deposited on a flat-polycrystalline gold electrode (AuE, surface area, 0.0216 cm(2)) to give a sensor with a fast response toward 4-nitrophenol (4-NPh) in liquid phase. The sensor also displays good sensitivity and long-term stability, and enhanced electrochemical performances. The calibration plot is linear (r(2) = 0.9873) over the large concentration range (LDR, 1.0 mu M to 0.5 mM). The sensitivity and detection limit is calculated to similar to 4.740 mu A cm(-2) mM(-1) and similar to 0.19 mu M (signal-to-noise ratio, at a SNR of 3), respectively. We also discuss possible future prospective uses of this metal oxide nanomaterials in terms of chemical sensing. (C) 2013 Elsevier Ltd. All rights reserved. Keywords 
ISSN : 0013-4686 
Journal Name : ELECTROCHIMICA ACTA 
Volume : 112 
Issue Number : 112 
Publishing Year : 1434 AH
2013 AD 
Article Type : Article 
Added Date : Sunday, July 16, 2017 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
M RahmanRahman, M Researcher  
S KhanKhan, S Researcher  
A AsiriAsiri, A Researcher  
A Al-SehemiAl-Sehemi, A Researcher  

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