1. Nitrogen-vacancy-rich molybdenum nitride nanosheets as highly efficient electrocatalysts for nitrogen reduction reaction.
- Author
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Younis, Muhammad Adnan, Manzoor, Saira, Ali, Amjad, Guo, Li, Yousaf, Muhammad Imran, Nosheen, Sofia, Naveed, Ahmad, and Ahmad, Naushad
- Subjects
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MOLYBDENUM nitrides , *MOLYBDENUM , *NANOSTRUCTURED materials , *HYDROGEN evolution reactions , *STANDARD hydrogen electrode , *NITROGEN , *ELECTROCATALYSTS , *NITRIDING , *CATALYSTS - Abstract
The development of low-cost earth-abundant electrocatalysts to produce ammonia (NH3) with high efficiency for the nitrogen (N2) reduction reaction (NRR) remains challenging. Herein, we propose the development of highly efficient ultrathin nitrogen-vacancy-rich molybdenum nitride nanosheets (MoN-NV) for NRR using basic electrolytes under ambient conditions. In 0.1 M KOH, this catalyst attained a high faradaic efficiency (FE) of ∼14% with an NH3 yield of 22.5 μg h−1 mg−1cat at −0.3 V vs. a reversible hydrogen electrode under ambient conditions. The characterization results and electrochemical studies disclosed that nitrogen vacancies in the MoN-NV nanosheets played a critical role in the enhanced electrocatalytic activity for NRR. Furthermore, the recycling tests confirmed the stability of the catalyst during NRR electrolysis. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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