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- W4311762961 startingPage "117082" @default.
- W4311762961 abstract "Urea electrolysis is a promising way to realize the treatment of urea-polluted water and the production of hydrogen fuel as clean energy source. The performance of urea oxidation reaction (UOR) is the key half-reaction, which strongly influences the efficiency of urea electrolysis. Hierarchical structures with both high catalytic activity and electronic conductivity can be beneficial in terms of improved UOR efficiency. In this work, inspired by the natural nutrient transport within plants, a hierarchically-three dimensional structure is obtained by the in-situ growth of nickel sulfide composites on nickel foam. It demonstrates an efficient UOR catalytic performance with a low potential of 1.343 V vs RHE (reversible hydrogen electrode) to reach 10 mA cm−2, a small Tafel slope of 34.8 mV dec-1 and stable long-term durability (25 h with only 3.0 % activity drop), which surpasses those of many recently published works. Moreover, an actual human urine electrolytic cell is assembled, which exhibits a cell voltage of 1.427 V at 10 mA cm−2, demonstrating its practical application in urine and urea-rich wastewater treatment. The performance of the catalyst can be attributed to the hierarchically-three dimensional structures with both Ni3S2 microrods and hollow NiS nanoframes contributing to the improved catalytic performance in UOR." @default.
- W4311762961 created "2022-12-28" @default.
- W4311762961 creator A5016446629 @default.
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- W4311762961 date "2023-01-01" @default.
- W4311762961 modified "2023-10-17" @default.
- W4311762961 title "In-situ growth of hierarchical nickel sulfide composites on nickel foam for enhanced urea oxidation reaction and urine electrolysis" @default.
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- W4311762961 doi "https://doi.org/10.1016/j.jelechem.2022.117082" @default.
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