Graphdiyne-Induced Iron Vacancy for Efficient Nitrogen Conversion.

ABSTRACT: An iron vacancy-rich ferroferric oxide/graphdiyne heterostructure (IVR-FO/GDY) is rationally designed and fabricated for high-efficiency electrocatalytic nitrogen fixation to ammonia (ENFA). Experimental and theoretical results show that the GDY-induced iron vacancies in IVR-FO/GDY promote the electrocatalysis, and activate the local O sites to transfer electrons towards GDY to boost ENFA, resulting in promising electrocatalytic performances with a highest ammonia yield (Y_NH3 ) of 134.02 µg h^-1 mg_cat.^-1 and Faradaic efficiency (FE) of up to 60.88%, as well as the high long-term stability in neutral electrolytes. The cationic vacancy activation strategy proposed in this work has strong general and universal guiding significance to the design of ne

SUBMITTER: Fang Y 

PROVIDER: S-EPMC8805558 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature