Mild and Fast Construction of Ni-Based Electrodes for Industrial-Grade Water Splitting

Achieving high−efficiency and stable hydrogen evolution from water splitting is a great challenge. Herein, a facilely prepared two−dimenssional self−supported catalytic electrode with excellent stability is constructed for large−scale hydrogen production from alkaline simulated seawater. The bifunct...

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Published in:Inorganics 2023-04, Vol.11 (4), p.170
Main Authors: Lu, Zikang, Liang, Rikai, Shao, Yuqi, Hao, Weiju
Format: Article
Language:English
Subjects:
Additives
Adhesive strength
Analysis
chemical etching
Chemical reactions
Corrosion resistance
Efficiency
Electrodes
Energy
Etching
Gases
HER
Hydrogen
Hydrogen evolution
Hydrogen production
industrial−grade water splitting
Metal foams
Methods
mild and fast construction
Nickel
OER
Oxygen evolution reactions
Properties
Scanning electron microscopy
Seawater
Spectrum analysis
Splitting
Stability
Substrates
Voltammetry
Water splitting
Work stations
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container_title Inorganics
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creator Lu, Zikang
Liang, Rikai
Shao, Yuqi
Hao, Weiju
description Achieving high−efficiency and stable hydrogen evolution from water splitting is a great challenge. Herein, a facilely prepared two−dimenssional self−supported catalytic electrode with excellent stability is constructed for large−scale hydrogen production from alkaline simulated seawater. The bifunctional catalytic electrode is prepared by a fast and mild one−step of sodium borohydride etching on a nickel foam (NF) substrate without adding other additives (NF@NiBx−3h). The overpotential of the hydrogen/oxygen evolution reaction (HER/OER) in alkaline−simulated seawater at 10 mA cm−2 is 96 mV and 261 mV. At 200 mA cm−2, the NF@NiBx−3h electrode shows good stability over 7 days throughout the water splitting process due to the corrosion resistance of the NF substrate, and strong adhesion between the Ni−B active material and the substrate. This work demonstrates a novel strategy for fabricating catalytic electrodes with high−performance, low cost and excellent stability.
doi_str_mv 10.3390/inorganics11040170
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subjects Additives
Adhesive strength
Analysis
chemical etching
Chemical reactions
Corrosion resistance
Efficiency
Electrodes
Energy
Etching
Gases
HER
Hydrogen
Hydrogen evolution
Hydrogen production
industrial−grade water splitting
Metal foams
Methods
mild and fast construction
Nickel
OER
Oxygen evolution reactions
Properties
Scanning electron microscopy
Seawater
Spectrum analysis
Splitting
Stability
Substrates
Voltammetry
Water splitting
Work stations
title Mild and Fast Construction of Ni-Based Electrodes for Industrial-Grade Water Splitting
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