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- W3004388488 abstract "Ammonia, as a water pollutant, can result in water eutrophication, aquatic organisms poison and other environmental issues. Therefore, detection of ammonia in water is beneficial for protection of a water source. Herein, a direct electrochemical aqueous ammonia sensor was constructed based on Pt nanoparticles-polypyrrole/Ni foam (Pt-PPy/Ni foam) electrode. Electrochemical experiments demonstrated that the Pt-PPy/Ni foam electrode showed good electrocatalytic activity for the oxidation of ammonia in alkaline solution and a direct electrochemical aqueous ammonia sensor was proposed accordingly. Well-dispersed Pt nanoparticles with the size of 260 ± 20 nm were anchored on a PPy layer to further increase the performance, especially the detection limit of the sensor. The ammonia sensor presented a detection limit of 12.36 nM (Sensitivity/Noise = 3), a sensitivity of 4.19 μA μm−1 and a wide linear range from 0.5 μm to 400 μm, as well as presenting great anti-interference capability and stability. These excellent performances of the sensor could be mainly attributed to great electrocatalytic ability of Pt nanoparticles, self-supported structure and synergistic effect between PPy and Pt nanoparticles." @default.
- W3004388488 created "2020-02-07" @default.
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- W3004388488 date "2020-01-30" @default.
- W3004388488 modified "2023-10-18" @default.
- W3004388488 title "Fabricating a Self-Supported Electrode for Detecting Ammonia in Water Based on Electrodepositing Platinum-Polypyrrole on Ni Foam" @default.
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- W3004388488 doi "https://doi.org/10.1149/1945-7111/ab6c55" @default.
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