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Bixbyite-type LnO As Promoters of Metallic Ni for Alkaline Electrocatalytic Hydrogen Evolution

Overview
Journal Nat Commun
Specialty Biology
Date 2022 Jul 5
PMID 35790749
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Abstract

The active-site density, intrinsic activity, and durability of Ni-based catalysts are critical to their application in industrial alkaline water electrolysis. This work develops a kind of promoters, the bixbyite-type lanthanide metal sesquioxides (LnO), which can be implanted into metallic Ni by selective high-temperature reduction to achieve highly efficient Ni/LnO hybrid electrocatalysts toward hydrogen evolution reaction. The screened Ni/YbO catalyst shows the low overpotential (20.0 mV at 10 mA cm), low Tafel slope (44.6 mV dec), and excellent long-term durability (360 h at 500 mA cm), significantly outperforming the metallic Ni and benchmark Pt/C catalysts. The remarkable hydrogen evolution activity and stability of Ni/YbO are attributed to that the YbO promoter with high oxophilicity and thermodynamic stability can greatly enlarge the active-site density, reduce the energy barrier of water dissociation, optimize the free energy of hydrogen adsorption, and avoid the oxidation corrosion of Ni.

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References
1.
Fan J, Wu J, Cui X, Gu L, Zhang Q, Meng F . Hydrogen Stabilized RhPdH 2D Bimetallene Nanosheets for Efficient Alkaline Hydrogen Evolution. J Am Chem Soc. 2020; 142(7):3645-3651. DOI: 10.1021/jacs.0c00218. View

2.
Kim J, Jung H, Jung S, Hwang J, Kim D, Lee N . Tailoring Binding Abilities by Incorporating Oxophilic Transition Metals on 3D Nanostructured Ni Arrays for Accelerated Alkaline Hydrogen Evolution Reaction. J Am Chem Soc. 2020; 143(3):1399-1408. DOI: 10.1021/jacs.0c10661. View

3.
Lu B, Guo L, Wu F, Peng Y, Lu J, Smart T . Ruthenium atomically dispersed in carbon outperforms platinum toward hydrogen evolution in alkaline media. Nat Commun. 2019; 10(1):631. PMC: 6367462. DOI: 10.1038/s41467-019-08419-3. View

4.
Sun H, Yan Z, Liu F, Xu W, Cheng F, Chen J . Self-Supported Transition-Metal-Based Electrocatalysts for Hydrogen and Oxygen Evolution. Adv Mater. 2019; 32(3):e1806326. DOI: 10.1002/adma.201806326. View

5.
Carrasco J, Lopez-Duran D, Liu Z, Duchon T, Evans J, Senanayake S . In situ and theoretical studies for the dissociation of water on an active Ni/CeO2 catalyst: importance of strong metal-support interactions for the cleavage of O-H bonds. Angew Chem Int Ed Engl. 2015; 54(13):3917-21. DOI: 10.1002/anie.201410697. View