Electrocatalytic NO reduction to NH 3 over TiS 2 nanosheets

Electrocatalytic conversion of NO into NH 3 (NORR) represents an attractive route for valuable NH 3 production and harmful NO removal. In this work, TiS 2 is first developed as a high-efficiency NORR electrocatalyst, achieving the maximum NO-to-NH 3 faradaic efficiency of 91.6% with a corresponding...

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Bibliographic Details
Published in:New journal of chemistry 2023-10, Vol.47 (38), p.17769-17774
Main Authors: Wang, Xiangli, Yang, Lan, Zhang, Guike, Chu, Ke
Format: Article
Language:English
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Summary:Electrocatalytic conversion of NO into NH 3 (NORR) represents an attractive route for valuable NH 3 production and harmful NO removal. In this work, TiS 2 is first developed as a high-efficiency NORR electrocatalyst, achieving the maximum NO-to-NH 3 faradaic efficiency of 91.6% with a corresponding NH 3 yield rate of 153.8 μmol h −1 cm −2 . Theoretical computations indicate that the surface-terminated Ti active centers on TiS 2 can effectively activate NO and promote the NORR protonation process with a minimized energy barrier, whilst inhibiting the competitive H 2 evolution, thereby resulting in enhanced activity and selectivity of TiS 2 towards the NORR.
ISSN:1144-0546
1369-9261
DOI:10.1039/D3NJ03532H