Two-dimensional (2D) materials are used in energy storage and conversion due to their unique electronic structure and large specific area. In this work, 2D vanadium carbide (V2CTx MXene) is fabricated and studied as an efficient and earth-abundant electrocatalyst for electrocatalytic N2 reduction reaction (NRR). When tested in 0.1 M Na2SO4, such electrocatalyst achieves a large NH3 yield rate of 12.6 μg h–1 mg–1cat. and a Faradaic efficiency of 4% at –0.7 V vs. reversible hydrogen electrode. Theoretical calculations show a low reaction barrier of 0.88 eV in the distal route for this catalyst. Graphic Abstract: [Figure not available: see fulltext.]
Xia, J., Guo, H., Yu, G., Chen, Q., Liu, Y., Liu, Q., et al. (2021). 2D Vanadium carbide (MXene) for electrochemical synthesis of ammonia under ambient conditions. CATALYSIS LETTERS, 151(12), 3516-3522 [10.1007/s10562-021-03589-6].
2D Vanadium carbide (MXene) for electrochemical synthesis of ammonia under ambient conditions
Traversa E.
2021-01-01
Abstract
Two-dimensional (2D) materials are used in energy storage and conversion due to their unique electronic structure and large specific area. In this work, 2D vanadium carbide (V2CTx MXene) is fabricated and studied as an efficient and earth-abundant electrocatalyst for electrocatalytic N2 reduction reaction (NRR). When tested in 0.1 M Na2SO4, such electrocatalyst achieves a large NH3 yield rate of 12.6 μg h–1 mg–1cat. and a Faradaic efficiency of 4% at –0.7 V vs. reversible hydrogen electrode. Theoretical calculations show a low reaction barrier of 0.88 eV in the distal route for this catalyst. Graphic Abstract: [Figure not available: see fulltext.]| File | Dimensione | Formato | |
|---|---|---|---|
|
Xia2021_Article_2DVanadiumCarbideMXeneForElect-2.pdf
solo utenti autorizzati
Tipologia:
Versione Editoriale (PDF)
Licenza:
Non specificato
Dimensione
1.49 MB
Formato
Adobe PDF
|
1.49 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
