Issue 72, 2019

Morphology-dependent electrocatalytic nitrogen reduction on Ag triangular nanoplates

Abstract

Electrocatalytic nitrogen reduction reactions (ENRR) can produce ammonia from nitrogen and water under ambient conditions. Here, we report the morphology-dependent electro-catalytic nitrogen reduction on Ag triangular nanoplates. Boosted by potassium cations, Ag triangular nanoplates with sharp edges exhibit a high faradaic efficiency of 25% with an ammonia yield of 58.5 mg gAg−1 h−1 at a low overpotential of −0.25 V vs. RHE. In comparison, rounded Ag nanoparticles mainly enclosed by {111} and {100} surfaces show a much smaller faradaic efficiency of 16% and ammonia yield of 38 mg gAg−1 h−1 at a larger overpotential (−0.35 V vs. RHE).

Graphical abstract: Morphology-dependent electrocatalytic nitrogen reduction on Ag triangular nanoplates

Supplementary files

Article information

Article type
Communication
Submitted
19 Jun 2019
Accepted
12 Aug 2019
First published
12 Aug 2019

Chem. Commun., 2019,55, 10705-10708

Morphology-dependent electrocatalytic nitrogen reduction on Ag triangular nanoplates

W. Gao, Y. Hao, X. Su, L. Chen, T. Bu, N. Zhang, Z. Yu, Z. Zhu and A. Yin, Chem. Commun., 2019, 55, 10705 DOI: 10.1039/C9CC04691G

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