Issue 13, 2024

Reduction of dinitrogen to ammonium through a magnesium-based electrochemical process at close-to-ambient temperature

Abstract

The Li-mediated nitrogen reduction enables practical synthesis of ammonia, but its energy efficiency is limited by the Li0/+ redox potential. To improve on this, a mediator with a more positive potential, like Mg0/2+, is required. Herein, we demonstrate that electrodeposited Mg0 reacts with N2 at a close-to-ambient temperature, and the resulting material can be converted into NH4+. This two-step process can produce ammonium with faradaic efficiency of up to 7% and yield rate up to 66 nmol s−1 cm−2.

Graphical abstract: Reduction of dinitrogen to ammonium through a magnesium-based electrochemical process at close-to-ambient temperature

Supplementary files

Article information

Article type
Communication
Submitted
09 Mar 2024
Accepted
15 May 2024
First published
23 May 2024

Energy Environ. Sci., 2024,17, 4481-4487

Reduction of dinitrogen to ammonium through a magnesium-based electrochemical process at close-to-ambient temperature

M. Krebsz, R. Y. Hodgetts, S. Johnston, C. K. Nguyen, Y. Hora, D. R. MacFarlane and A. N. Simonov, Energy Environ. Sci., 2024, 17, 4481 DOI: 10.1039/D4EE01090F

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