A Hierarchical CuO Nanowire@CoFe-Layered Double Hydroxide Nanosheet Array as a High-Efficiency Seawater Oxidation Electrocatalyst

A Hierarchical CuO Nanowire@CoFe-Layered Double Hydroxide Nanosheet Array as a High-Efficiency Seawater Oxidation Electrocatalyst

Seawater electrolysis has great potential to generate clean hydrogen energy, but it is a formidable challenge. In this study, we report CoFe-LDH nanosheet uniformly decorated on a CuO nanowire array on Cu foam (CuO@CoFe-LDH/CF) for seawater oxidation. Such CuO@CoFe-LDH/CF exhibits high oxygen evolut...

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Veröffentlicht in:Molecules (Basel, Switzerland) Switzerland), 2023-07, Vol.28 (15), p.5718
Hauptverfasser: Yang, Xiya, He, Xun, He, Lang, Chen, Jie, Zhang, Longcheng, Liu, Qian, Cai, Zhengwei, Yang, Chaoxin, Sun, Shengjun, Zheng, Dongdong, Farouk, Asmaa, Hamdy, Mohamed S, Ren, Zhaogang, Sun, Xuping
Format: Artikel
Sprache:eng
Schlagworte:
alkaline seawater electrolysis
Chemical reaction, Rate of
Communication
Copper oxide
Cuprite
Electrodes
Electrolysis
Fresh water
hierarchical CuO@CoFe-LDH nanoarray
Hydroxides
Nanowires
Oxidation
oxygen evolution reaction
Scanning electron microscopy
Sea-water
Seawater
Spectrum analysis
Voltammetry
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Zusammenfassung:Seawater electrolysis has great potential to generate clean hydrogen energy, but it is a formidable challenge. In this study, we report CoFe-LDH nanosheet uniformly decorated on a CuO nanowire array on Cu foam (CuO@CoFe-LDH/CF) for seawater oxidation. Such CuO@CoFe-LDH/CF exhibits high oxygen evolution reaction electrocatalytic activity, demanding only an overpotential of 336 mV to generate a current density of 100 mA cm in alkaline seawater. Moreover, it can operate continuously for at least 50 h without obvious activity attenuation.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules28155718