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Implanting Ni-O-VOx sites into Cu-doped Ni for low-overpotential alkaline hydrogen evolution

Li, Yibing; Tan, Xin; Hocking, Rosalie K.; Bo, Xin; Ren, Hangjuan; Johannessen, B.; Smith, Sean; Zhao, Chuan


Nickel-based catalysts are most commonly used in industrial alkaline water electrolysis. However, it remains a great challenge to address the sluggish reaction kinetics and severe deactivation problems of hydrogen evolution reaction (HER). Here, we show a Cu-doped Ni catalyst implanted with Ni-O-VOx sites (Ni(Cu)VOx) for alkaline HER. The optimal Ni(Cu) VOx electrode exhibits a near-zero onset overpotential and low overpotential of 21 mV to deliver -10 mA cm−2, which is comparable to benchmark...[Show more]

CollectionsANU Research Publications
Date published: 2020
Type: Journal article
Source: Nature Communications
DOI: 10.1038/s41467-020-16554-5
Access Rights: Open Access


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