Issue 33, 2022

A 3D FeOOH nanotube array: an efficient catalyst for ammonia electrosynthesis by nitrite reduction

Abstract

Nitrite (NO2) is a detrimental pollutant widely existing in groundwater sources, threatening public health. Electrocatalytic NO2 reduction settles the demand for removal of NO2 and is also promising for generating ammonia (NH3) at room temperature. A nanotube array directly grown on a current collector not only has a large surface area, but also exhibits improved structural stability and accelerated electron transport. Herein, a self-standing FeOOH nanotube array on carbon cloth (FeOOH NTA/CC) is proposed as a highly active electrocatalyst for NO2-to-NH3 conversion. As a 3D catalyst, the FeOOH NTA/CC is able to attain a surprising faradaic efficiency of 94.7% and a large NH3 yield of 11937 μg h−1 cm−2 in 0.1 M PBS (pH = 7.0) with 0.1 M NO2. Furthermore, this catalyst also displays excellent durability in cyclic and long-term electrolysis tests.

Graphical abstract: A 3D FeOOH nanotube array: an efficient catalyst for ammonia electrosynthesis by nitrite reduction

Supplementary files

Article information

Article type
Communication
Submitted
30 Jan 2022
Accepted
29 Mar 2022
First published
30 Mar 2022

Chem. Commun., 2022,58, 5160-5163

A 3D FeOOH nanotube array: an efficient catalyst for ammonia electrosynthesis by nitrite reduction

Q. Liu, Q. Liu, L. Xie, L. Yue, T. Li, Y. Luo, N. Li, B. Tang, L. Yu and X. Sun, Chem. Commun., 2022, 58, 5160 DOI: 10.1039/D2CC00611A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements