One-step growth of nitrogen-decorated iron-nickel sulfide nanosheets for the oxygen evolution reaction
Journal of Materials Chemistry A, ISSN: 2050-7496, Vol: 6, Issue: 14, Page: 5592-5597
2018
- 55Citations
- 36Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Article Description
The large overpotential loss of the oxygen evolution reaction (OER) is a major obstacle restricting the wide commercial application of water-splitting devices. Herein, we report one-step growth of nitrogen-decorated iron-nickel sulfide nanosheet arrays on a conductive Ni-Fe alloy foam (N-(Ni,Fe)S/NIF). It is noteworthy that N-(Ni,Fe)S/NIF has an ultra-low overpotential of 167 mV at 10 mA cm and exhibits the best OER performance among the non-precious electrocatalysts reported so far. Furthermore, N-(Ni,Fe)S/NIF shows nearly no degradation after a long-term OER test for 50 h at a constant current density of 10 mA cm. The superior catalytic activity and stability for the OER is due to the application of simultaneous regulation of specific morphologies, incorporation of Fe, and surface nitrogen-anion decoration on NiS materials. In addition, N-(Ni,Fe)S/NIF prepared by another method also shows excellent OER activity. This work will pave a new way to develop advanced electrocatalysts with a lower OER overpotential.
Bibliographic Details
Royal Society of Chemistry (RSC)
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