In:
Angewandte Chemie, Wiley, Vol. 133, No. 48 ( 2021-11-22), p. 25467-25472
Abstract:
Electrochemical reduction of NO not only offers an attractive alternative to the Haber–Bosch process for ambient NH 3 production but mitigates the human‐caused unbalance of nitrogen cycle. Herein, we report that MoS 2 nanosheet on graphite felt (MoS 2 /GF) acts as an efficient and robust 3D electrocatalyst for NO‐to‐NH 3 conversion. In acidic electrolyte, such MoS 2 /GF attains a maximal Faradaic efficiency of 76.6 % and a large NH 3 yield of up to 99.6 μmol cm −2 h −1 . Using MoS 2 nanosheet‐loaded carbon paper as the cathode, a proof‐of‐concept device of Zn‐NO battery was assembled to deliver a discharge power density of 1.04 mW cm −2 and an NH 3 yield of 411.8 μg h −1 mg cat. −1 . Calculations reveal that the positively charged Mo‐edge sites facilitate NO adsorption/activation via an acceptance–donation mechanism and disfavor the binding of protons and the coupling of N−N bond.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v133.48
DOI:
10.1002/ange.202110879
Language:
English
Publisher:
Wiley
Publication Date:
2021
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505868-5
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514305-6
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505872-7
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1479266-7
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505867-3
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506259-7
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