The graphitic carbon nitride/polyaniline/silver nanocomposites as a potential electrocatalyst for hydrazine detection

• Published in: Journal of electroanalytical chemistry (Lausanne, Switzerland) Vol. 833; pp. 9 - 16
• Main Authors: Afshari, Mohaddeseh, Dinari, Mohammad, Momeni, Mohamad Mohsen
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.01.2019; Elsevier Science Ltd
• Subjects: Ag nanoparticles; Atomic absorption analysis; Atomic absorption spectrophotometry; Atomic beam spectroscopy; Carbon; Carbon nitride; Conductive polymer; Diffraction patterns; Electrical measurement; Electrocatalytic activity; Electrochemical analysis; Field emission microscopy; Fluorine; Fourier transforms; Hydrazine electrooxidation; Hydrazines; Infrared spectroscopy; Microscopy; Nanocomposites; Nanoparticles; PANI/g-C3N4/AgNPs catalyst; Polyanilines; Scanning electron microscopy; Silver; Tin oxides; Transmission electron microscopy; X-ray diffraction; Conductive polymer; Electrocatalytic activity; Ag nanoparticles; Hydrazine electrooxidation; PANI/g-C3N4/AgNPs catalyst
• ISSN: 1572-6657; 1873-2569
• DOI: 10.1016/j.jelechem.2018.11.022

The preparation of electrodes with a new nanocomposite material obtained by silver (Ag) nanoparticle deposition on fluorine doped tin oxide/polyaniline/graphitic‑carbon nitride film (PANI/g-C3N4/AgNPs) is developed. The PANI/g-C3N4/AgNPs nanocomposite material is characterized by transmission electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM), X-Ray diffraction (XRD) patterns, Brunauer-Emmett-Teller (BET), energy dispersive X-ray diffraction (EDX), Fourier-transform infrared (FT-IR) spectroscopy, and atomic absorption spectrophotometry (AAS). An amperometric sensing platform is constructed for electrochemical detection of hydrazine using PANI/g-C3N4/AgNPs and exhibits a wide linear range of 5–300mM with a limit of detection (LOD) of 300μM (S/N=3). Moreover, the amperometric currents are highly stable in the presence of interfering species. These results demonstrate that PANI/g-C3N4/AgNPs nanocomposites have great potential in hydrazine electrooxidation. [Display omitted] •Novel hybrid of the polyaniline/g-C3N4/silver was used to for hydrazine detection.•The prepared electrodes show a higher current density than Ag and PANI/g-C3N4 electrodes.•Increasing hydrazine concentration led to diminishing Ag nanoparticle oxidation peak.•Linear range of 5–300mM with low detection limit (300μM) was obtained.