Electrochemical Synthesis of Nitrite and Nitrate via Cathodic Oxygen Activation in Liquefied Ammonia

被引：1

作者：

Krebs, Moritz Lukas ^{[1
]}

Schueth, Ferdi ^{[1
]}

机构：

[1] Max Planck Inst Kohlenforsch, Dept Heterogeneous Catalysis, D-45470 Mulheim, Germany

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2024年 / 146卷 / 45期

关键词：

LIQUID-AMMONIA; SUPEROXIDE ION; OXIDATION; REDUCTION; MICROELECTRODES; GENERATION; MECHANISM;

D O I：

10.1021/jacs.4c10279

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The electrochemical oxidation of ammonia (NH3) enables decentralized small-scale synthesis of nitrate (NO3 -) and nitrite (NO2 -) under ambient conditions by directly utilizing renewable energy. Yet, their electrosynthesis has been restricted to aqueous media and low ammonia concentrations. For the first time, we demonstrate here a strategy enabling the direct electrooxidation of liquefied NH3 to NO3 - and NO2 - by using molecular oxygen, achieving combined Faraday efficiencies above 40%.

引用

页码：30753 / 30757

页数：5