由 MOF 衍生的掺铁 Ni3S2@CoSx 纳米阵列作为双功能电催化剂实现高效整体水分离

IF 2.8 4区生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Journal of chemical technology and biotechnology Pub Date : 2024-04-15 DOI:10.1002/jctb.7655

Jia-Le Song, Lu-Bing Li, Yun-Hai Wang, Qing-Yun Chen

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引用次数: 0

摘要

要促进电催化水分离技术的发展，制造高性能双功能电催化剂仍是一项挑战。

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Fe-doped Ni3S2@CoSx nanoarrays derived from MOF as bifunctional electrocatalysts for efficient overall water-splitting

BACKGROUND

Fabricating high-performance bifunctional electrocatalysts remains challenging to promote the development of electrocatalytic water-splitting.

RESULT

A heterostructure Fe-Ni₃S₂@CoS_x/NF was successfully synthesized using an interfacial engineering strategy. Benefiting from the strong synergistic effect between highly active cobalt sulfide (CoS_x) and iron-doped trinickel-disulfide (Ni₃S₂) (Fe-Ni₃S₂), Fe-Ni₃S₂@CoS_x/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 CoS_x nanoarrays and Fe-Ni₃S₂ nanosheets respectively served as HER and OER active centers. When Fe-Ni₃S₂@CoS_x/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).

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来源期刊

Journal of chemical technology and biotechnology 工程技术-工程：化工

CiteScore

7.00

自引率

5.90%

发文量

268

审稿时长

1.7 months

期刊介绍： Journal of Chemical Technology and Biotechnology(JCTB) is an international, inter-disciplinary peer-reviewed journal concerned with the application of scientific discoveries and advancements in chemical and biological technology that aim towards economically and environmentally sustainable industrial processes.