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13. Efficient electrocatalytic reduction of nitrate to ammonia over fibrous SmCoO3 under ambient conditions.

Author

Hu, Peiji, Hu, Songjie, Du, Hongting, Liu, Qian, Guo, Haoran, Ma, Ke, and Li, Tingshuai

Subjects
*DENITRIFICATION, *CATALYTIC activity, *AMMONIA, *NANOFIBERS, *ADSORPTION (Chemistry), *CATALYSTS
Abstract

We report SmCoO3 nanofibers as an efficient catalyst for nitrate reduction to ammonia. This catalyst achieves a large NH3 yield of 14.4 mg h−1 mgcat.−1 and a high faradaic efficiency of 81.3% at −1.0 V vs. RHE in 0.1 M PBS with 0.1 M NaNO3, and it also displays excellent electrochemical durability and structural stability. Theoretical calculations indicate that Sm–O and Co–O bonds have an incredibly low adsorption energy of −0.1 eV, which can significantly reduce the applied potential and hence enhance the catalytic activity. [ABSTRACT FROM AUTHOR]

Published
2023
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14. Efficient electrocatalytic reduction of nitrate to ammonia over fibrous SmCoO 3 under ambient conditions.

Author

Hu P, Hu S, Du H, Liu Q, Guo H, Ma K, and Li T

Abstract

We report SmCoO 3 nanofibers as an efficient catalyst for nitrate reduction to ammonia. This catalyst achieves a large NH 3 yield of 14.4 mg h -1 mg cat . -1 and a high faradaic efficiency of 81.3% at -1.0 V vs . RHE in 0.1 M PBS with 0.1 M NaNO 3 , and it also displays excellent electrochemical durability and structural stability. Theoretical calculations indicate that Sm-O and Co-O bonds have an incredibly low adsorption energy of -0.1 eV, which can significantly reduce the applied potential and hence enhance the catalytic activity.

Published
2023
Full Text
View/download PDF

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