摘要
固相法合成掺铝Ni(OH)2并加以化学表面包覆CoOOH。XRD、FT-IR、SEM等表征表明属α-Ni(OH)2超细粉体。恒电流充放电测定样品的电化学性能。并与微米级球型β-Ni(OH)2比较,其中掺铝量15.5%的样品稳定性好,放电比容量有所提高,放电电位中值比β球镍高,且充电电位中值比较低,大倍率放电性能较稳定。
The α-Ni （OH）2 doping Al 15.5% was synthesized by solid-state reaction,and coated with CoOOH,then determined its constitution and conformation by XRD,FT-IR,SEM and so on. Furthermore it was found that the α-Ni （OH）2 sample had more excellent electrode reversibility,higher discharge capacity and higher discharge potential than the spherical μmβ- Ni（OH）2.
出处
《福建师大福清分校学报》
2007年第5期39-43,共5页
Journal of Fuqing Branch of Fujian Normal University
关键词
固相法
α—Ni(OH)2
表面覆钴
电化学性能
Solid-state synthesis, α-Ni（OH）2, Coated with cobalt, Electrochemical performence
