Fe(II)-rich catalytic interfaces boost nitrate adsorption and hydrogenation for selective electrochemical ammonia synthesis

doi:10.1016/j.cej.2025.166686

Fe(II)-rich catalytic interfaces boost nitrate adsorption and hydrogenation for selective electrochemical ammonia synthesis

2025-08-05

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DOI：10.1016/j.cej.2025.166686

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• Fe@CF-1 achieves 98.46% NO3− conversion within 2 h across a wide pH range (3–12). • Stabilized Fe(II) sites have the ability to effectively adsorb and activate NO3−. • Fe sites promote hydrogenation of nitrogenous intermediates while inhibiting HER. • Fe@CF-1 shows dynamic evolution of Fe(II) and Fe(III) species during NO3RR.

Keywords:

Fe@CF-1

NO3− reduction

Fe(II) sites

hydrogenation

HER inhibition

Fe(II)-rich catalytic interfaces boost nitrate adsorption and hydrogenation for selective electrochemical ammonia synthesis

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