Electrochemical sensor based on PVP coated cobalt ferrite/graphite/PANI nanocomposite for the detection of hydrazine
cobalt ferrite; electrochemical sensors; graphite; hydrazine; polyaniline
In this study, we developed a multi-layered electrode as an efficient nanocomposite electrochemical sensor for detecting carcinogenic hydrazine in water. Nano-cobalt ferrite (CoFe2O4) was prepared using poly (vinylpyrrolidone) (PVP), mixed with an optimum quantity of graphite and pasted on a stainless-steel current collector. The nanocomposite was further hybridised by electrodepositing with polyaniline (PANI). The obtained composite was characterized using XRD, FTIR, SEM, and electrochemical techniques. XRD analysis shows the successful formation of composite from individual precursors. According to SEM, wrinkled and layered morphology for graphite and aggregate clusters for cobalt with spike or tubular structure for polyaniline were observed. When subjected to amperometry current, the prepared electrode showed different peaks for different concentrations of hydrazine, such as 1 ?M to 100 ?M. Cyclic voltammetry studies showed an increase in oxidation and reduction peaks. These studies will lead to a new platform for their potential applications in detecting toxic materials in real samples such as water, plastic bottle, water etc., 2023 The Author(s). Published by IOP Publishing Ltd.
Desai N.; Sudhakar Y.N.; Patil R.R.; Chandran A.; Nidhin M.; Agnihotri A.S.
Materials Research Express, Vol-10, No. 12
https://doi.org/10.1088/2053-1591/ad14c4 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85181108641&doi=10.1088%2f2053-1591%2fad14c4&partnerID=40&md5=759d69a4318558a98ba99929de7df7dc
Desai N., Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Karnataka, Manipal, 576 104, India; Sudhakar Y.N., Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Karnataka, Manipal, 576 104, India; Patil R.R., Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Karnataka, Manipal, 576 104, India; Chandran A., Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Karnataka, Manipal, 576 104, India; Nidhin M., Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, 560029, India; Agnihotri A.S., Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, 560029, India