title: Hierarchical mesoporous nickel cobaltite nanoneedle/carbon cloth arrays as superior flexible electrodes for supercapacitors.
abstract: Hierarchical mesoporous NiCo2O4 nanoneedle arrays on carbon cloth have been fabricated by a simple hydrothermal approach combined with a post-annealing treatment. Such unique array nanoarchitectures exhibit remarkable electrochemical performance with high capacitance and desirable cycle life at high rates. When evaluated as an electrode material for supercapacitors, the NiCo2O4 nanoneedle arrays supported on carbon cloth was able to deliver high specific capacitance of 660 F g-1 at current densities of 2 A g-1 in 2 M KOH aqueous solution. In addition, the composite electrode shows excellent mechanical behavior and long-term cyclic stability (91.8% capacitance retention after 3,000 cycles). The fabrication method presented here is facile, cost-effective, and scalable, which may open a new pathway for real device applications.
authors.forename: Deyang
authors.initials: D
authors.lastname: Zhang
authors.forename: Hailong
authors.initials: H
authors.lastname: Yan
authors.forename: Yang
authors.initials: Y
authors.lastname: Lu
authors.forename: Kangwen
authors.initials: K
authors.lastname: Qiu
authors.forename: Chunlei
authors.initials: C
authors.lastname: Wang
authors.forename: Chengchun
authors.initials: C
authors.lastname: Tang
authors.forename: Yihe
authors.initials: Y
authors.lastname: Zhang
authors.forename: Chuanwei
authors.initials: C
authors.lastname: Cheng
authors.affiliation: School of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, People's Republic of China. ysluo@xynu.edu.cn.
authors.forename: Yongsong
authors.initials: Y
authors.lastname: Luo