Ammonia electrosynthesis on carbon-supported metal single-atom catalysts
Ammonia,a feedstock platform for fertilizer and pharmaceutical production,is regarded as a ze-ro-carbon energy carrier.The electrochemical synthesis of ammonia,powered by clean and renew-able electricity,has garnered increased attention as an alternative to the Haber-Bosch process.Very recently,single-atom catalysts(SACs)have become highly effective electrocatalysts for such elec-trochemical transformation,where the isolated metal sites ensure the high atomic utilization effi-ciency as well as the prevention of nitrogen-nitrogen coupling.In this review,we focus on the recent progress of single-atom catalysts in electrochemical ammonia synthesis and briefly introduce ni-trogen cycles in both natural and artificial ecosystems,followed by a discussion of catalyst design by theoretical and experimental methods.Synthesis routes from different nitrogen sources,including dinitrogen(N2)and nitrogen oxides(NOx),are also highlighted.Besides,the catalysis dynamics as an indispensable section is presented and discussed in-depth.Finally,we tackle challenges and offer perspectives,aspiring to provide insightful guidance for researchers in this community striving for advanced ammonia electrosynthesis.
NETL
NSTL
万方数据
