The specific capacitance for the first discharge of the composite was calculated as 2193 F g-1 at a discharge current density of 2 A g-1, which is significantly larger than the corresponding value of 1914 F g-1 for pristine Ni(OH)2 at the same current density. The composite also exhibited better cycling performance and rate capability than Ni(OH)2.
This study has shown that the overall electrochemical performance is considerably enhanced for the doughnut-like Ni(OH)2–Co(OH)2 composite.
Read the Nanoscale Article today:
Preparation and electrochemical performances of doughnut-like Ni(OH)2–Co(OH)2 composites as pseudocapacitor materials
Jinxiu Li, Mei Yang, Jinping Wei and Zhen Zhou
Nanoscale, 2012, DOI: 10.1039/C2NR30936J