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- W3215289712 endingPage "152090" @default.
- W3215289712 startingPage "152090" @default.
- W3215289712 abstract "Defect engineering at the atomic level has been one of the most prevalent research topics in the field of catalysis because defects act as superior active sites. However, defects are difficult to create, recognize, and fully comprehend. In this study, for the first time, we demonstrate that the defects creation by palladium atom on the surface of α-MnO2 nanorods supported graphene ([email protected]α-MnO2/G). These defects significantly altered the electronic and crystalline structures of the as-prepared material, as well as improving the surface/interface properties for biomolecule determination. As a result, [email protected]α-MnO2/G exhibited a higher electroactive surface area, conductivity, and synergistic effect in the simultaneous detection of dopamine (DA) and paracetamol (PA) owing to its defective nature. For instance, it showed wide detection ranges from 0.2 to 425 µM and from 0.1 to 375 µM with lower limits of detection of 0.086 and 0.059 µM for DA and PA, respectively. It also showed high sensitivity (0.0591 and 0.0854 µA µM−1 for DA and PA, respectively) and experienced no interference from the presence of a 100-fold excess of interferents. Importantly, we discussed the 2H+/2e– reaction mechanism of DA and PA oxidation on the [email protected]α-MnO2/G surface, for an in-depth understanding of the process." @default.
- W3215289712 created "2021-12-06" @default.
- W3215289712 creator A5034246754 @default.
- W3215289712 creator A5046937215 @default.
- W3215289712 date "2022-03-01" @default.
- W3215289712 modified "2023-09-29" @default.
- W3215289712 title "Palladium doped α-MnO2 nanorods on graphene as an electrochemical sensor for simultaneous determination of dopamine and paracetamol" @default.
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