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- Title
Fe‐doped Ni<sub>3</sub>S<sub>2</sub>@CoS<sub>x</sub> nanoarrays derived from MOF as bifunctional electrocatalysts for efficient overall water‐splitting.
- Authors
Song, Jia‐Le; Li, Lu‐Bing; Wang, Yun‐Hai; Chen, Qing‐Yun
- Abstract
BACKGROUND: Fabricating high‐performance bifunctional electrocatalysts remains challenging to promote the development of electrocatalytic water‐splitting. RESULT: A heterostructure Fe‐Ni3S2@CoSx/NF was successfully synthesized using an interfacial engineering strategy. Benefiting from the strong synergistic effect between highly active cobalt sulfide (CoSx) and iron‐doped trinickel‐disulfide (Ni3S2) (Fe‐Ni3S2), Fe‐Ni3S2@CoSx/NF exhibited outstanding bifunctional performance, with low overpotentials of 77 and 217 mV for the cathodic hydrogen evolution reaction (HER) and anodic oxygen evolution reaction (OER), respectively, at 10 mA cm−2. CONCLUSION: The CoSx nanoarrays and Fe‐Ni3S2 nanosheets respectively served as HER and OER active centers. When Fe‐Ni3S2@CoSx/NF was used as both cathode and anode for overall water‐splitting, a low voltage of 1.52 V was required to reach the current density of 10 mA cm−2 with nearly 100% Faradic efficiency and outstanding durability. © 2024 Society of Chemical Industry (SCI).
- Subjects
SOCIETY of Chemical Industry (Great Britain); ELECTROCATALYSTS; DOPING agents (Chemistry); OXYGEN evolution reactions; HYDROGEN evolution reactions; COBALT sulfide; PHOTOCATHODES
- Publication
Journal of Chemical Technology & Biotechnology, 2024, Vol 99, Issue 7, p1616
- ISSN
0268-2575
- Publication type
Article
- DOI
10.1002/jctb.7655