A Hierarchical NiFe-LDH@CoP Array for High-Efficiency Alkaline Seawater Oxidation
Journal of Electronic Materials(2024)
摘要
The quest for electrocatalysts that are both stable and efficient for seawater oxidation is intriguing yet presents significant challenges. Herein, we present a hierarchical NiFe-LDH@CoP core–shell array on carbon cloth (NiFe-LDH@CoP/CC) for efficient oxygen evolution reaction (OER) in an alkaline seawater electrolyte. The NiFe-LDH@CoP/CC array exhibits remarkably low overpotential of 251 mV to achieve current density of 500 mA cm−2. Moreover, it features a modest Tafel slope of 24.9 mV dec−1. Importantly, this electrocatalyst sustains its robust stability during continuous electrolysis for 300 h at 500 mA cm−2. The outstanding performance and unique hierarchical structure of the NiFe-LDH@CoP/CC array provides innovative insights for the development of efficient electrocatalysts tailored for seawater oxidation applications.
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关键词
CoP,NiFe-LDH,hierarchical structure,oxygen evolution reaction,seawater electrolysis
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