Citation: Xianbiao Hou, Tianyuan Jiang, Xiujuan Xu, Xingkun Wang, Jian Zhou, Huimin Xie, Zhicheng Liu, Lei Chu, Minghua Huang. Coupling of NiFe-Based Metal-Organic Framework Nanosheet Arrays with Embedded Fe-Ni₃S₂ Clusters as Efficient Bifunctional Electrocatalysts for Overall Water Splitting[J]. Chinese Journal of Structural Chemistry, ;2022, 41(7): 220707. doi: 10.14102/j.cnki.0254-5861.2022-0145 shu

Coupling of NiFe-Based Metal-Organic Framework Nanosheet Arrays with Embedded Fe-Ni₃S₂ Clusters as Efficient Bifunctional Electrocatalysts for Overall Water Splitting

Xianbiao Hou ^{1, #} ,
Tianyuan Jiang ^{1, #} ,
Xiujuan Xu ¹ ,
Xingkun Wang ¹ ,
Jian Zhou ¹ ,
Huimin Xie ¹ ,
Zhicheng Liu ¹ ,
Lei Chu ^1,, ,
Minghua Huang ^1,,

1.
School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China

Corresponding author: Lei Chu, chulei@ouc.edu.cn Minghua Huang, huangminghua@ouc.edu.cn
Received Date: 31 May 2022
Accepted Date: 1 July 2022
Available Online: 8 July 2022

Figures(5)

Developing highly efficient, easy-to-make and cost-effective bifunctional electrocatalysts for water splitting with lower cell voltages is crucial to producing massive hydrogen fuel. In response, the coupled hierarchical Ni/Fe-based MOF nanosheet arrays with embedded metal sulfide nanoclusters onto nickel foam skeleton (denoted as Fe-Ni₃S₂ @NiFe-MOF/NF) are fabricated, in which the Fe-Ni₃S₂ clusters could effectively restrain the aggregation of the layer metal-organic frameworks (MOF) nanosheets and adjust the local electronic structures of MOFs nanosheets. Benefiting from the rapid charge transfer and the exposure of abundant active sites, the well-designed Fe-Ni₃S₂@NiFe-MOF/NF displays excellent oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) performance. More importantly, when equipped in the alkaline water electrolyzer, the Fe-Ni₃S₂@NiFe-MOF/NF enables the system with a mere 1.6 V for achieving the current density of 10 mA cm^-2. This work offers a paradigm for designing efficient bifunctional HER/OER electrocatalysts based on the hybrid materials of nanostructured metal sulfide and MOF.
- metal-organic frameworks,
- metal sulfides,
- nanosheet arrays,
- electrocatalysts,
- water splitting
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Coupling of NiFe-Based Metal-Organic Framework Nanosheet Arrays with Embedded Fe-Ni3S2 Clusters as Efficient Bifunctional Electrocatalysts for Overall Water Splitting

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通讯作者: 陈斌, bchen63@163.com

Coupling of NiFe-Based Metal-Organic Framework Nanosheet Arrays with Embedded Fe-Ni₃S₂ Clusters as Efficient Bifunctional Electrocatalysts for Overall Water Splitting