Vacancy Rich TiB Nanosheets Promote Electrochemical Ammonia Synthesis.

The ability to exfoliate transition metal diborides has led to a renewed interest in their prospect to be applied as catalysts for electrochemical reactions. This is due to an enhanced access to the unprecedented interfaces these nanomaterials offer. In this work, we show that nanosheets exfoliated from TiB exhibit vacancies that facilitate an excellent interface for catalyzing nitrogen reduction reaction (NRR).