Dinitrogen (N2) fixation to ammonia (NH3) is typically challenging under mild conditions. Now, lithium hydride (LiH) is shown to mediate photodriven N2 fixation under ambient conditions. Under ultraviolet illumination, LiH is photolysed to release H2, leaving electrons residing in surface hydrogen vacancies, which facilitate N2 activation and photocatalytic NH3 synthesis.

中文翻译：

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氢化锂光驱动固氮

在温和条件下，二氮 (N2) 固定为氨 (NH3) 通常具有挑战性。现在，氢化锂（LiH）被证明可以在环境条件下介导光驱动的 N2 固定。在紫外线照射下，LiH 光解释放 H2，使电子驻留在表面氢空位中，从而促进 N2 活化和光催化 NH3 合成。