Synergistic effect of Prussian Blue, Ceria, and reduced graphene oxide in ternary nanocomposite PBNCs-CeO2-rGO for electrochemical detection of hydrogen peroxide

[Display omitted] •An in-situ synthetic approach was employed for developing ternary nanocomposite.•Ternary nanocomposite showed higher electrochemical activity towards H2O2 sensing.•The synergistic effect is responsible for improved electrochemical activity.•The developed material showed good appli...

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Bibliographic Details
Published in:Applied surface science 2024-12, Vol.676, p.161010, Article 161010
Main Authors: Chauhan, Seema, Kumar, Anuj, Sharma, Chhaya
Format: Article
Language:English
Subjects:
Amperometry
Ceria nanoparticles
Graphene
Hydrogen peroxide
Prussian blue nanocubes
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Summary:[Display omitted] •An in-situ synthetic approach was employed for developing ternary nanocomposite.•Ternary nanocomposite showed higher electrochemical activity towards H2O2 sensing.•The synergistic effect is responsible for improved electrochemical activity.•The developed material showed good applicability in real sample analysis. Graphene-based ternary composites incorporating rare earth metals have garnered significant attention for their potential in low-detection applications of hydrogen peroxide (H2O2), owing to their cost-effectiveness and facile synthesis methods. In this study, we have reported the synergistic effect of Prussian blue nanocubes (PBNCs), reduced graphene oxide (rGO), and ceria nanoparticles (CeO2) in the ternary nanocomposite, i.e., PBNCs-CeO2-rGO for a low detection of H2O2. The enhanced electrocatalytic activity of ternary composite as compared to bare PBNCs and CeO2 nanoparticles was evidenced in different electrochemical methods such as Electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and Amperometry. The synthesized material was comprehensively characterized using X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), Fourier-transform infrared spectroscopy (FTIR), and Raman spectroscopy. Remarkably, the synthesized material exhibited a low detection limit of up to 2.08 nM and a high sensitivity of 8671.6 μA mM−1 cm−2. Furthermore, the synthesized material demonstrated excellent selectivity, good reproducibility, and high stability, highlighting its potential for various sensing applications.
ISSN:0169-4332
DOI:10.1016/j.apsusc.2024.161010