Xiang-Kui Gu

Abstract Electrocatalytic nitric oxide reduction (NORR) enables the efficient abatement of NO while simultaneously synthesizing valuable ammonia (NH3). However, the strong polarity of NO hinders its effective activation on conventional NORR catalysts because of their single-site interaction mode, wherein either the nitrogen (N) or oxygen (O) atom of NO binds to the catalyst through a unidirectional electron transfer.

Abstract Electrochemical nitrate reduction to ammonia offers an attractive solution to environmental sustainability and clean energy production but suffers from the sluggish *NO hydrogenation with the spin–state transitions. Herein, we report that the manipulation of oxygen vacancies can contrive spin−polarized Fe1−Ti pairs on monolithic titanium electrode that exhibits an attractive NH3 yield rate of 272,000 μg h−1 mgFe−1 and a high NH3 Faradic efficiency of 95.2% at −0.4 V vs.

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