▎ 摘　　要

NOVELTY - An electrochemical device is fabricated by (a) producing holey nitrogen-doped graphene from graphene oxide; (b) dispersing molybdenum atoms anchoring on the holey nitrogen-doped graphene to form holey nitrogen-doped graphene (AMHG); and (c) using the AMHG to fabricate the electrochemical device. The electrochemical device comprises an electrode formed from the AMGH, and the electrochemical device is used to convert nitrogen (N2) and water into ammonia. USE - Fabrication of electrochemical device for producing ammonia (claimed). ADVANTAGE - The method enables efficient and economical production of ammonia from dinitrogen using electrochemical devices having atomic metal on graphene for electrochemistry.