Journal
NATURE COMMUNICATIONS
Volume 13, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41467-022-33725-8
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Funding
- Shenzhen-Hong Kong Science and Technology Innovation Cooperation Zone Shenzhen Park Project [HZQB-KCZYB-2020030]
- National Key R&D Program of China [2017YFA0204403]
- Hong Kong Innovation and Technology Commission via the Hong Kong Branch of National Precious Metals Material Engineering Research Center
- National Natural Science Foundation of China [12002108]
- Guangdong Basic and Applied Basic Research Foundation [2020A1515110236, 2022A1515011402]
- Science, Technology, and Innovation Commission of Shenzhen Municipality [GXWD20201230155427003-20200824105236001, ZDSYS20210616110000001]
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The authors report the synthesis of single iron atom-dispersed Mo-based nanosheets from a mineral hydrogel for hydrogen evolution reaction in alkaline condition. These nanosheets exhibit excellent activity and stability, making them promising catalysts for hydrogen production.
It remains a great challenge to achieve large-scale fabrication of single atom-anchored heterostructured catalysts with high stability, low cost, and convenience. Here, the authors report single iron atom-dispersed Mo-based nanosheets synthesized from a scalable two-dimensional mineral hydrogel approach for hydrogen evolution reaction in alkaline condition. Hydrogen energy is critical for achieving carbon neutrality. Heterostructured materials with single metal-atom dispersion are desirable for hydrogen production. However, it remains a great challenge to achieve large-scale fabrication of single atom-anchored heterostructured catalysts with high stability, low cost, and convenience. Here, we report single iron (Fe) atom-dispersed heterostructured Mo-based nanosheets developed from a mineral hydrogel. These rationally designed nanosheets exhibit excellent hydrogen evolution reaction (HER) activity and reliability in alkaline condition, manifesting an overpotential of 38.5 mV at 10 mA cm(-2), and superior stability without performance deterioration over 600 h at current density up to 200 mA cm(-2), superior to most previously reported non-noble-metal electrocatalysts. The experimental and density functional theory results reveal that the O-coordinated single Fe atom-dispersed heterostructures greatly facilitated H2O adsorption and enabled effective adsorbed hydrogen (H*) adsorption/desorption. The green, scalable production of single-atom-dispersed heterostructured HER electrocatalysts reported here is of great significance in promoting their large-scale implementation.
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