title: Direct growth of cobalt hydroxide rods on nickel foam and its application for energy storage.
abstract: The present work reports synthesis of cobalt hydroxide (Co(OH)2) rods on nickel foam and its supercapacitor application. Hierarchical Co(OH)2 rods with length of approximately 3.5 μm and diameter of approximately 400 nm were prepared by one-step, simple, and inexpensive chemical-bath-deposition method. The direct growth of Co(OH)2 rods on the Ni foam gave three dimensional (3D) structure for easy access of electrolyte throughout material surface. Also, well-adhered interface between Co(OH)2 rods and Ni-foam surface gave better conduction channels. Detailed electrochemical study was performed by using cyclic voltammetry and galvanostatic charge/discharge measurements. The results demonstrate that Co(OH)2 rods on Ni foam are efficient electrodes for supercapacitor application.
authors: World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan), http://www.yamauchi-labo.com.
authors: Rahul R
authors: RR
authors: Salunkhe
authors: Bishnu Prasad
authors: BP
authors: Bastakoti
authors: Chun-Tsung
authors: CT
authors: Hsu
authors: Norihiro
authors: N
authors: Suzuki
authors: Jung Ho
authors: JH
authors: Kim
authors: Shi Xue
authors: SX
authors: Dou
authors: Chi-Chang
authors: CC
authors: Hu
authors: Yusuke
authors: Y
authors: Yamauchi
keywords: chemical-bath-deposition method; cobalt; nanostructures; rods; supercapacitors