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- W4311345013 abstract "Abstract Electrochemical oxidation of ammonia is an energy-effective and environment-friendly technology for ammonia-containing wastewater treatment. The key challenge is to explore the high activity and low-price catalyst for ammonia electrooxidation. NiCu layered double hydroxide (NiCu-LDH) on nickel foam (NF) was synthesized for ammonia oxidation via a facile hydrothermal reaction. The Ni 0.9 Cu 0.1 -LDH/NF achieved a maximum current density of 78 mA·cm −2 at 1.76 V vs. RHE and a lowest Tafel slope of 195.64 MV·dec −1 in comparison with other catalysts, which was prepared by using different molar ratios of Ni 2+ and Cu 2+ . The Ni 0.9 Cu 0.1 -LDH/NF showed smaller and denser nanosheets compared with that of Ni(OH) 2 /NF, indicating it had more electrochemical active areas and active sites. Chronoamperometry tests showed that the Ni 0.9 Cu 0.1 -LDH /NF reached a current density of 23 mA·cm −2 after 120 mins, which was four times as high as Ni(OH) 2 /NF (6 mA·cm −2 ). The above results demonstrated that incorporating Cu into the Ni-based layered hydroxides could improve the electrochemical activity of the catalyst, showing Ni 0.9 Cu 0.1 -LDH /NF to be a prospective inexpensive, and steady catalyst for high-performance of ammonia electrooxidation." @default.
- W4311345013 created "2022-12-25" @default.
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- W4311345013 date "2022-12-01" @default.
- W4311345013 modified "2023-10-17" @default.
- W4311345013 title "Preparation of nickel-copper layered double hydroxide on nickel foam as a non-noble catalyst for efficient electrooxidation of ammonia" @default.
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- W4311345013 doi "https://doi.org/10.1088/1742-6596/2390/1/012072" @default.
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