Hydrogen ionic conductors and ammonia conversions

John T. S. Irvine*, Stephy Wilson, Sujitra Amnuaypanich, Gavin J. Irvine, Maarten Christiaan Verbraeken, Kamil Macie J Nowicki, George M. Carins

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

Electrochemical and catalytic conversion to and from ammonia is strongly enhanced by appropriate choice of hydrogen conducting electrolyte or substrate. Here we explore both protonic and hydride ionic conductors in relation to ammonia conversions. Protonic conductors tend to require too high a temperature to achieve sufficient hydrogen flux for ammonia synthesis as thermal decomposition competes stromgly. Coversely protonic conductors are well suited to direct ammonia fuel cell use. Hydride ions can be very mobile and are strongly reducing. Alakaline hydride lattices can exhibit facile H and N mobility and exchange and offer a very promising basis for ammonia conversion and synthesis.
Original languageEnglish
Pages (from-to)296-306
Number of pages11
JournalFaraday Discussions
Volume243
Early online date10 Feb 2023
DOIs
Publication statusPublished - 1 Jul 2023

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