Hybrid structure of cobalt monoxide nanowire @ nickel hydroxidenitrate nanoflake aligned on nickel foam for high-rate supercapacitor

• Main Authors: Zhang, Hua, Fan, Hong Jin, Guan, Cao, Liu, Jinping, Cheng, Chuanwei, Li, Hongxing, Li, Xianglin, Zhou, Weiwei
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2012
• Subjects: DRNTU::Engineering::Materials
• Online Access: https://hdl.handle.net/10356/106535; http://hdl.handle.net/10220/8362
• Institution: Nanyang Technological University

A new hybrid nanostructure of porous cobalt monoxide nanowire @ ultrathin nickel hydroxidenitrate nanoflake is directly synthesized on a 3D nickel foam by a facile two-step hydrothermal route, which demonstrates a specific capacitance of ~798.3 F g ^-1 at the current density of ~1.67 A g ^- 1 and good rate performance when used as electrode material for supercapacitors. The capacitance loss is less than 5% after 2000 charge–discharge cycles.