In:
Angewandte Chemie International Edition, Wiley, Vol. 62, No. 5 ( 2023-01-26)
Abstract:
We propose the pseudobrookite Fe 2 TiO 5 nanofiber with abundant oxygen vacancies as a new electrocatalyst to ambiently reduce nitrate to ammonia. Such catalyst achieves a large NH 3 yield of 0.73 mmol h −1 mg −1 cat. and a high Faradaic Efficiency (FE) of 87.6 % in phosphate buffer saline solution with 0.1 M NaNO 3 , which is lifted to 1.36 mmol h −1 mg −1 cat. and 96.06 % at −0.9 V vs. RHE for nitrite conversion to ammonia in 0.1 M NaNO 2 . It also shows excellent electrochemical durability and structural stability. Theoretical calculation reveals the enhanced conductivity of this catalyst and an extremely low free energy of −0.28 eV for nitrate adsorption at the presence of vacant oxygen.
Type of Medium:
Online Resource
ISSN:
1433-7851
,
1521-3773
DOI:
10.1002/anie.202215782
Language:
English
Publisher:
Wiley
Publication Date:
2023
detail.hit.zdb_id:
2011836-3
detail.hit.zdb_id:
123227-7