title: NiCo2O4 nanostructure materials: morphology control and electrochemical energy storage.
abstract: Three types of NiCo2O4 nanostructure, homogeneous NiCo2O4 nanoneedle arrays, heterogeneous NiCo2O4 nanoflake arrays and NiCo2O4 nanoneedle-assembled sisal-like microspheres are synthesized via facile solution methods in combination with thermal treatment. The NiCo2O4 nanoneedle arrays are evaluated as supercapacitor electrodes and demonstrate excellent electrochemical performances with a high specific capacitance (923 F g(-1) at 2 A g(-1)), good rate capability, and superior cycling stability. The superior capacitive performances are mainly due to the unique one dimensional porous nanoneedle architecture, which provides a faster ion/electron transfer rate, improved reactivity, and enhanced structural stability. The fabrication method presented here is facile, cost-effective and scalable, which may open a new pathway for real device applications.
authors.affiliation: School of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, P. R. China. ysluo@xynu.edu.cn.
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: Yihe
authors.initials: Y
authors.lastname: Zhang
authors.forename: Xianming
authors.initials: X
authors.lastname: Liu
authors.forename: Jingshan
authors.initials: J
authors.lastname: Luo
authors.forename: Yongsong
authors.initials: Y
authors.lastname: Luo