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Selective electrochemical nitrogen fixation to ammonia catalyzed by a novel microporous vanadium phosphonate via the distal pathway.
- Source :
- Chemical Communications; 7/25/2024, Vol. 60 Issue 58, p7463-7466, 4p
- Publication Year :
- 2024
-
Abstract
- Herein, a microporous organic–inorganic hybrid, vanadium phosphonate (VPn) material has been developed. With the combined advantages of the periodic organic–inorganic skeleton, a regular microporous channel with a crystalline pore wall, and good surface area, VPn displays electrocatalytic NRR activity with a selective NH<subscript>3</subscript> yield (11.84 μg h<superscript>−1</superscript> mg<subscript>cat</subscript><superscript>−1</superscript>), faradaic efficiency of 26.29% at −0.6 V and high stability up to 15 h. The isotopic labeling experiment also verifies the electrosynthesis of NH<subscript>3</subscript> both qualitatively and quantitatively. The theoretical simulation reveals that the associative distal route serves as the most favourable pathway during the NRR, with the first protonation step of *N<subscript>2</subscript> leading to *NNH as the potential determining step. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13597345
- Volume :
- 60
- Issue :
- 58
- Database :
- Complementary Index
- Journal :
- Chemical Communications
- Publication Type :
- Academic Journal
- Accession number :
- 178469466
- Full Text :
- https://doi.org/10.1039/d4cc01045k