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• W2988890219 abstract "Abstract A highly sensitive electrochemical sensing platform for hydrazine was developed based on a highly surface-roughened nanoporous gold electrode decorated with Pt nanoparticles (Pt/HNPG). The self-supporting composite electrode is binder-free, which was fabricated via anodization of a commercial AuSn alloy in HCl electrolyte and subsequent electrodeposition of H2PtCl6 precursor in aqueous solution. The morphology and composition of Pt/HNPG electrode were characterized by scanning electron microscopy (SEM), energy dispersive X-ray spectrometer (EDS), high-resolution transmission electron microscopy (HRTEM) and X-ray photoelectron spectroscopy (XPS). The catalytic activity of Pt/HNPG towards electrooxidation of hydrazine was examined. It is found that both Pt nanoparticles loadings and solution pH have strong influence on the electrocatalytic activity. At the potential of –0.1 V (vs. SCE), the fabricated composite electrode showed excellent sensing performance for hydrazine with a wide linear range of 5 μM to 6.105 mM, a low detection limit of 1.03 μM (signal-to-noise ratio (S/N) of 3) and a high sensitivity of 3449.68 μA mM−1 cm−2. Moreover, the sensor exhibited good selectivity, repeatability and stability. It was also successfully applied for the highly sensitive determination of hydrazine in real water samples with satisfactory results." @default.
• W2988890219 created "2019-11-22" @default.
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• W2988890219 date "2020-02-01" @default.
• W2988890219 modified "2023-10-03" @default.
• W2988890219 title "Electrochemical preparation of Pt nanoparticles modified nanoporous gold electrode with highly rough surface for efficient determination of hydrazine" @default.
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• W2988890219 doi "https://doi.org/10.1016/j.snb.2019.127416" @default.
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