Efficient ammonia synthesis via electroreduction of nitrite using single-atom Ru-doped Cu nanowire arrays

Ngoc Quang Tran; Le Thai Duy; Dai Cao Truong; Bao Thu Nguyen Le; Bach Thang Phan; Yunhee Cho; Xinghui Liu; Hyoyoung Lee

doi:10.1039/d2cc00331g

Efficient ammonia synthesis via electroreduction of nitrite using single-atom Ru-doped Cu nanowire arrays

Chem Commun (Camb). 2022 Apr 26;58(34):5257-5260. doi: 10.1039/d2cc00331g.

Authors

Ngoc Quang Tran^{1

2}, Le Thai Duy³, Dai Cao Truong^{1

2}, Bao Thu Nguyen Le^{2

4}, Bach Thang Phan^{1

2}, Yunhee Cho^{5

6}, Xinghui Liu⁵, Hyoyoung Lee^{5

6

7}

Affiliations

¹ Center for Innovative Materials and Architectures, Ho Chi Minh, Vietnam. tnquang@inomar.edu.vn.
² Vietnam National University, Ho Chi Minh City, Vietnam.
³ Department of Materials Science and Engineering, Ajou University, Suwon 16499, Korea.
⁴ Department of Mathematics and Physics, University of Information Technology, Ho Chi Minh City, Vietnam.
⁵ Center for Integrated Nanostructure Physics, Institute for Basic Science (IBS), Sungkyunkwan University, Suwon 16419, Republic of Korea. hyoyoung@skku.edu.
⁶ Department of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea.
⁷ Department of Biophysics, Sungkyunkwan University, Suwon 16419, Republic of Korea.

PMID: 35388833
DOI: 10.1039/d2cc00331g

Abstract

Here, we report the highly active and selective electrocatalytic reduction of NO₂^- ions to value-added NH₃ over a single-atom Ru-modified Cu nanowire array on three-dimensional copper foam (Ru-Cu NW/CF) under ambient conditions. The obtained Ru-Cu NW/CF catalyst exhibited a maximum faradaic efficiency of 94.1% and an NH₃ yield up to 211.73 mg h^-1 cm^-2 (0.732 mmol h^-1 cm^-2), which was approximately five times higher than that of the Cu NW/CF catalyst.