IPFS News Link • Battery Project
Ni(OH)2 Nanoplates Grown on Graphene as Advanced Electrochemical Pseudocapacitor Materials
• Hailiang Wang, Hernan Sanchez Casalongue, Yongye L Abstract Ni(OH)2 nanocrystals grown on graphene sheets with various degrees of oxidationare investigated as electrochemical pseudocapacitor materials for potential energy storageapplications. Single-crystalline Ni(OH)2 hexagonal nanoplates directly grown on lightlyoxidized,electrically-conducting graphene sheets (GS) exhibit a high specific capacitanceof ~1335F/g at a charge and discharge current density of 2.8A/g and ~953F/g at 45.7A/gwith excellent cycling ability. The high specific capacitance and remarkable ratecapability are promising for applications in supercapacitors with both high energy andpower densities.
