Electrochemical Synthesis of Ammonia from Water and Nitrogen in Ethylenediamine under Ambient Temperature and Pressure. Issue 14 (1st January 2016)

• Record Type: Journal Article
• Authors: Kim, Kwiyong; Yoo, Chung-Yul; Kim, Jong-Nam; Yoon, Hyung Chul; Han, Jong-In
• Is Part Of: Journal of the Electrochemical Society. Volume 163:Issue 14(2016)
• Page Start: F1523
• Page End: F1526
• Publication Date: 2016-01-01
• Subjects: Ammonia -- Electro-reduction -- Electro-synthesis -- Energy storage -- Ethylenediamine; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.0741614jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : In this study, a novel electrolysis cell based on ethylenediamine (EDA) as a cathodic solvent was developed for NH3 electro-synthesis. The NH3 -generating cathode chamber was filled with 0.1 M LiCl/EDA and separated by a cation exchange membrane from the anodic compartment, which was filled with 0.05 M H2 SO4 aqueous solution. It appeared that EDA was cathodically stable, and thus electron-stealing medium destruction was substantially avoided. The faradaic efficiency for NH3 synthesis was 17.2%, producing 7.73 × 10 −7 mol NH3 for 1 h electrolysis at a cell voltage of 1.8 V with the charge consumption of 1.3 C.