In:
Angewandte Chemie, Wiley, Vol. 134, No. 18 ( 2022-04-25)
Abstract:
Electrocatalytic NO reduction is regarded as an attractive strategy to degrade the NO contaminant into useful NH 3 , but the lack of efficient and stable electrocatalysts to facilitate such multiple proton‐coupled electron‐transfer processes impedes its applications. Here, we report on developing amorphous B 2.6 C supported on a TiO 2 nanoarray on a Ti plate (a‐B 2.6 C@TiO 2 /Ti) as an NH 3 ‐producing nanocatalyst with appreciable activity and durability toward the NO electroreduction. It shows a yield of 3678.6 μg h −1 cm −2 and a FE of 87.6 %, superior to TiO 2 /Ti (563.5 μg h −1 cm −2 , 42.6 %) and a‐B 2.6 C/Ti (2499.2 μg h −1 cm −2 , 85.6 %). An a‐B 2.6 C@TiO 2 /Ti‐based Zn−NO battery achieves a power density of 1.7 mW cm −2 with an NH 3 yield of 1125 μg h −1 cm −2 . An in‐depth understanding of catalytic mechanisms is gained by theoretical calculations.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v134.18
DOI:
10.1002/ange.202202087
Language:
English
Publisher:
Wiley
Publication Date:
2022
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1479266-7
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