Copper nanocrystals anchored on an O-rich carbonized corn gel for nitrogen electroreduction to ammonia

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Li, C
Zhang, S
Ding, Z
Zhou, H
Wang, G
Zhang, H
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2020
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Abstract

The electrochemical nitrogen reduction reaction (ENRR), as a promising green N2 fixation strategy for the production of ammonia under ambient conditions, has attracted significant attention. Herein, we report the synthesis of copper nanocrystals anchored on a carbonized corn gel (Cu NCs/CCG) for electrochemical N2 fixation to NH3, in which the rich O-containing functional groups on CCG are beneficial for efficiently dispersing and stabilizing the copper nanocrystals. As a result, the obtained Cu NCs/CCG achieve a high faradaic efficiency (FE) of 25.89% and a large NH3 yield rate of 1514 μg h−1 mgCu−1 at −0.3 V versus an RHE in 0.1 M Na2SO4. Moreover, the Cu NCs/CCG demonstrate good ENRR stability and durability. This work paves the way for developing high-performance ENRR electrocatalysts utilizing biomass derivatives as precursors for NH3 synthesis.

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Inorganic Chemistry Frontiers
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7
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19
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Inorganic chemistry
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Li, C; Zhang, S; Ding, Z; Zhou, H; Wang, G; Zhang, H, Copper nanocrystals anchored on an O-rich carbonized corn gel for nitrogen electroreduction to ammonia, Inorganic Chemistry Frontiers, 2020, 7 (19), pp. 3555-3560
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