Plasma-Electrocatalysis Cascade Synthesis of Deuterated Ammonia.

Authors

Kaiwen Yang, Yanmei Huang, Runchao Qin, Qixing Wang, Shuhe Han, Bin Zhang, Yifu Yu

Published in

Angewandte Chemie (International ed. in English). Pages e202515856. Sep 26, 2025. Epub Sep 26, 2025.

Abstract

Deuterated ammonia (ND₃) exhibits growing market demand in the fields of chemical analysis, pharmaceutical industry and semiconductor manufacturing. Currently, industrial production of ND₃ relies on harsh conditions and complex processes, leading to high production cost and security risk. Herein, we propose a sustainable relay strategy to produce ND₃ by using air and deuterium oxide (D₂O) as raw materials, including plasma-driven air-to-NO_x conversion and electrocatalytic NO_x ^--to-ND₃ conversion. The insufficient supply of reactive deuterium (*D) leads to sluggish kinetics of electrocatalytic deuterium reaction. The well-designed F modified cobalt (F-Co) catalyst exhibits a remarkable yield of 0.75 mmol h^-1 cm^-2 and a Faradaic efficiency of 80.43% for ND₃ at 200 mA cm^-2. The combined results of characterizations reveal that fluorine (F) atom can boost D₂O dissociation and suppress competing deuterium evolution reaction, thereby providing abundant *D for deuteration reaction. Notably, a pilot-scale demonstration system, consisting of non-thermal plasma, flow electrolyzer, air stripping and ammonia absorber, is constructed to produce practicable ND₃ solution (2.8 wt%) with ∼21.45 mmol h^-1 ND₃ production capability by using air and D₂O as sources.

PMID:
41013959
Bibliographic data and abstract were imported from PubMed on 27 Sep 2025.

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