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The influence of deposition time on electrochemical performance of Prussian blue-modified submicron-structured gold electrodes for hydrogen peroxide sensing

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Abstract

Submicron-structured gold (SMG) exhibits promising prospects for the preparation of Prussian blue (PB)-modified amperometric hydrogen peroxide (H2O2) sensor. Herein, the influence of deposition time on the microstructure and electrochemical properties of SMG/PB-modified electrodes was researched through scanning electron microscope (SEM), atomic force microscope (AFM), cyclic voltammograms (CVs), and chronoamperometry methods. It turned out that the thickness of the PB film on the electrode surface is increased in the deposition time, and the SMG/PB-modified electrodes exhibited the widest linear range and best stability under the optimized deposition time of 240 s. It turns out that thicker PB layer can provide more active PB particles on the electrode’s surface, improving the detecting performance of PB-modified SMG electrodes.

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All of the raw data required to reproduce these findings are available upon request from the corresponding author (Siyuan Lu).

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Acknowledgements

This work gratefully acknowledges the support from the National Natural Science Foundation of China (Grant Nos. 12172184 and 11902292) and the K C Wong Magna Fund in Ningbo University. We thank LetPub (www.letpub.com) for its linguistic assistance during the preparation of this manuscript.

Funding

This work received support from the National Natural Science Foundation of China (Grant No. 12172184, 11902292) and the K C Wong Magna Fund in Ningbo University.

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XM took part in conceptualization, writing—original draft, methodology, and validation. SL involved in supervision, writing—review & editing. YC involved in writing—review & editing.

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Correspondence to Siyuan Lu.

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Mei, X., Lu, S. & Chen, Y. The influence of deposition time on electrochemical performance of Prussian blue-modified submicron-structured gold electrodes for hydrogen peroxide sensing. Chem. Pap. 76, 4763–4775 (2022). https://doi.org/10.1007/s11696-022-02212-1

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  • DOI: https://doi.org/10.1007/s11696-022-02212-1

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