▎ 摘　　要

8-Aryl-7H-acenaphtho[1,2-d] imidazoles were produced by a catalytic process utilizing diethanolamine sulfate-functionalized graphene oxide. The process was implemented using acenaphthoquinone, ammonium acetate, and aromatic aldehydes via a one-pot reaction under solvent-free conditions. The applied catalyst smoothly catalyzed the reactions at high yields. The developed catalyst offered several advantages including carbon structure, eco-friendliness, cost-effectiveness, and ease of handling and storage. The applied procedure also exhibited several priorities over reported ones such as high yield, short reaction time, no-byproducts, environmental compatibility, and simple work-up. Durability and stability of catalyst were also examined in five cycles which showed no significant reduction in the catalytic activity.