Li-intercalated CeO2 as an ideal substrate for boosting ammonia synthesis

Abstract

We present a Li-intercalated-CeO₂ catalyst that exhibits outstanding activity for ammonia synthesis. The incorporation of Li significantly reduces the activation energy and suppresses hydrogen poisoning of the Ru co-catalysts. As a result, the lithium intercalation enables the catalyst to achieve ammonia production from N₂ and H₂ at substantially lower operating temperatures.