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Efficient electrohydrogenation of N2 to NH3 by oxidized carbon nanotubes under ambient conditions.
- Source :
- Chemical Communications; 5/4/2019, Vol. 55 Issue 34, p4997-5000, 4p
- Publication Year :
- 2019
-
Abstract
- It is of great importance to search for efficient and stable metal-free catalysts toward electrochemical N<subscript>2</subscript>-to-NH<subscript>3</subscript> conversion. In this communication, a chemically oxidized carbon nanotube material (O-CNT) is verified as an active electrocatalyst for the N<subscript>2</subscript> reduction reaction under ambient conditions. In 0.1 M LiClO<subscript>4</subscript>, O-CNT achieves a large NH<subscript>3</subscript> yield of 32.33 μg h<superscript>−1</superscript> mg<subscript>cat.</subscript><superscript>−1</superscript> and a high faradaic efficiency of 12.50% at −0.4 V vs. the reversible hydrogen electrode. It also demonstrates superior stability. Density functional theory calculations suggest that C–O groups play a key role in the electrochemical N<subscript>2</subscript> fixation. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13597345
- Volume :
- 55
- Issue :
- 34
- Database :
- Complementary Index
- Journal :
- Chemical Communications
- Publication Type :
- Academic Journal
- Accession number :
- 136010362
- Full Text :
- https://doi.org/10.1039/c9cc00726a