▎ 摘　　要

High-surface-area Ni(OH)(2)-porous nitrogen-doped graphene (Ni(OH)(2)@p-NG) composite was electro-synthesized via a facile co-electrochemical/electrophoretic deposition method. The microscopic results revealed the formation of beta-nickel hydroxide nanoparticles uniformly grown onto porous N-doped graphene. BET findings indicated that the fabricated composite has high surface area of 289.3 m(2) g(-1) where the pristine hydroxide showed only 74.6 m(2) g(-1). The electrochemical data revealed that the composite/NF electrode is able to deliver specific capacity of 1642 F g(-1) at 10 A g(-1) and high-rate performance of 74.4% with increasing the applied load from 0.5 to 10 A g(-1). While pristine Ni(OH)(2)/NF electrode exhibited lower capacity of 951 F g(-1) at 10 A g(-1) and weak capacity retention of 53.1% at high applied loads. Furthermore, composite electrode showed a remarkable cycling stability of 85.8% after 7000 cycles at 10 A g(-1) vs 63% for the pristine Ni(OH)(2)/NF.