▎ 摘　　要

Nanocomposites using graphene hybrid with a fully conjugated macrocyclic nickel complex were successfully prepared via a simple redox reaction of graphene oxide and an octaaza-bis-alpha-diimine macrocyclic nickel complex. The dye-sensitized solar cells fabricated with the graphene/macrocyclic nickel complex-based nanocomposite counter electrode reached a power conversion efficiency of 8.30%, which was higher than that of the platinum counter electrode under the same conditions. The nanocomposites exhibited excellent electrocatalytic performance for the reduction of triiodide due to the well-distributed catalytic nickel center on the graphene surface. (C) 2016 Elsevier B.V. All rights reserved.