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    Ammonia Electrosynthesis with High Selectivity under Ambient Conditions via a Li<sup>+</sup> Incorporation Strategy

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    We report the discovery of a dramatically enhanced N<sub>2</sub> electroreduction reaction (NRR) selectivity under ambient conditions via the Li<sup>+</sup> incorporation into poly­(<i>N</i>-ethyl-benzene-1,2,4,5-tetracarboxylic diimide) (PEBCD) as a catalyst. The detailed electrochemical evaluation and density functional theory calculations showed that Li<sup>+</sup> association with the O atoms in the PEBCD matrix can retard the HER process and can facilitate the adsorption of N<sub>2</sub> to afford a high potential scope for the NRR process to proceed in the “[OLi<sup>+</sup>]·N<sub>2</sub>H<sub><i>x</i></sub>” alternating hydrogenation mode. This atomic-scale incorporation strategy provides new insight into the rational design of NRR catalysts with higher selectivity
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