An electrochemical nano-sensor for determination of hydrazine using modified electrode by La2O3–Co3O4 nanohybrids and ionic liquid

A non-enzymatic electrochemical sensor (modified carbon paste electrode (CPE) using La 2 O 3 –Co 3 O 4 nanocomposite and ionic liquid) was made for sensitive quantification of hydrazine. The scanning electron microscopic (SEM), X-ray powder diffraction (XRD) as well as Fourier transform infrared spe...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2021-10, Vol.32 (20), p.25258-25268
Main Authors: Nazari, Monireh, Asadollahzadeh, Hamideh, Shahidi, Mehdi, Rastakhiz, Nahid, Mohammadi, Sayed Zia
Format: Article
Language:English
Subjects:
Carbon
Characterization and Evaluation of Materials
Chemical sensors
Chemistry and Materials Science
Cobalt oxides
Fourier transforms
Hydrazines
Infrared spectroscopy
Ionic liquids
Ions
Lanthanum oxides
Materials Science
Nanocomposites
Nanosensors
Optical and Electronic Materials
Oxidation
Water sampling
X ray powder diffraction
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Summary:A non-enzymatic electrochemical sensor (modified carbon paste electrode (CPE) using La 2 O 3 –Co 3 O 4 nanocomposite and ionic liquid) was made for sensitive quantification of hydrazine. The scanning electron microscopic (SEM), X-ray powder diffraction (XRD) as well as Fourier transform infrared spectroscopy (FT-IR) were employed for finding the nanocomposite characteristics. The electrochemical measurements revealed that combination of La 2 O 3 –Co 3 O 4 nanocomposite and ionic liquid and carbon paste showed very good voltammetric responses toward hydrazine oxidation with the broad linear ranges between 0.1 and 120.0 μM and low detection limit (DL) of 0.01 μM, and 203.6 μA mM −1  cm −2 sensitivity. Then, hydrazine in different water samples was determined by the standard addition procedure. We observed reasonable findings with relative standard deviation (RSD) of less than 3.4% and 96.0–103.0% recovery for 5 parallel measurements. Hence, La 2 O 3 –Co 3 O 4 /CPE can be considered as one of the novel platforms for hydrazine to be electrochemically detected.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-021-06983-3