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Electrochemical Detection of Hydrazine by Carbon Paste Electrode Modified with Ferrocene Derivatives, Ionic Liquid, and CoS 2 -Carbon Nanotube Nanocomposite.
- Source :
-
ACS omega [ACS Omega] 2021 Feb 08; Vol. 6 (7), pp. 4641-4648. Date of Electronic Publication: 2021 Feb 08 (Print Publication: 2021). - Publication Year :
- 2021
-
Abstract
- The electrocatalytic performance of carbon paste electrode (CPE) modified with ferrocene-derivative (ethyl2-(4-ferrocenyl[1,2,3]triazol-1-yl)acetate), ionic liquid ( n -hexyl-3-methylimidazolium hexafluorophosphate), and CoS <subscript>2</subscript> -carbon nanotube nanocomposite (EFTA/IL/CoS <subscript>2</subscript> -CNT/CPE) was investigated for the electrocatalytic detection of hydrazine. CoS <subscript>2</subscript> -CNT nanocomposite was characterized by field emission scanning electron microscopy, X-ray powder diffraction, and transmission electron microscopy. According to the results of cyclic voltammetry, the EFTA/IL/CoS <subscript>2</subscript> -CNT-integrated CPE has been accompanied by greater catalytic activities for hydrazine oxidation compared to the other electrodes in phosphate buffer solution at a pH 7.0 as a result of the synergistic impact of fused ferrocene-derivative, IL, and nanocomposite. The sensor responded linearly with increasing concentration of hydrazine from 0.03 to 500.0 μM with a higher sensitivity (0.073 μA μM <superscript>-1</superscript> ) and lower limit of detection (LOD, 0.015 μM). Furthermore, reasonable reproducibility, lengthy stability, and excellent selectivity were also attained for the proposed sensor. Finally, EFTA/IL/CoS <subscript>2</subscript> -CNT/CPE was applied for the detection of hydrazine in water samples, and good recoveries varied from 96.7 to 103.0%.<br />Competing Interests: The authors declare no competing financial interest.<br /> (© 2021 The Authors. Published by American Chemical Society.)
Details
- Language :
- English
- ISSN :
- 2470-1343
- Volume :
- 6
- Issue :
- 7
- Database :
- MEDLINE
- Journal :
- ACS omega
- Publication Type :
- Academic Journal
- Accession number :
- 33644570
- Full Text :
- https://doi.org/10.1021/acsomega.0c05306