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Fabrication of Nitrogen-Doped Reduced Graphene Oxide Modified Screen Printed Carbon Electrode (N-rGO/SPCE) as Hydrogen Peroxide Sensor.

ABSTRACT: In recent years, the electrochemical sensing approach has attracted electrochemists because of its excellent detection process, simplicity, high sensitivity, cost-effectiveness, and high selectivity. In this study, we prepared nitrogen doped reduced graphene oxide (N-rGO) and characterized it using various advanced techniques such as XRD, SEM, EDX, Raman, and XPS. Furthermore, we modified the active surface of a screen printed carbon electrode (SPCE) via the drop-casting of N-rGO. This modified electrode (N-rGO/SPCE) exhibited an excellent detection limit (LOD) of 0.83 µM with a decent sensitivity of 4.34 µAµM^-1cm^-2 for the detection of hydrogen peroxide (H₂O₂). In addition, N-rGO/SPCE also showed excellent selectivity, repeatability, and stability for the sensing of H₂O₂. Real sample investigations were also carried out that showed decent recovery.

SUBMITTER: Ahmad K

PROVIDER: S-EPMC9324769 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature

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Fabrication of Nitrogen-Doped Reduced Graphene Oxide Modified Screen Printed Carbon Electrode (N-rGO/SPCE) as Hydrogen Peroxide Sensor.

Ahmad Khursheed K Kim Haekyoung H

Nanomaterials (Basel, Switzerland) 20220716 14

In recent years, the electrochemical sensing approach has attracted electrochemists because of its excellent detection process, simplicity, high sensitivity, cost-effectiveness, and high selectivity. In this study, we prepared nitrogen doped reduced graphene oxide (N-rGO) and characterized it using various advanced techniques such as XRD, SEM, EDX, Raman, and XPS. Furthermore, we modified the active surface of a screen printed carbon electrode (SPCE) via the drop-casting of N-rGO. This modified ...[more]

PMID: 35889667

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