Cobalt phosphite microarchitectures assembled by ultralong nanoribbons and their application as effe

Huan Pang,*abc Yuanying Liu,a Juan Li,a Yahui Ma,a Guochang Li,a Yaning Ai,aJing Chen,a Jiangshan Zhanga and Honghe Zheng*b

Cobalt phosphite (Co11(HPO3)8(OH)6) microarchitectures assembledby ultralong nanoribbons are successfully synthesized by a mildhydrothermal condition without any additives. The uniform ultralongnanoribbon has a width of 100 nm and length of 20–30 mm.More importantly, Co11(HPO3)8(OH)6 microarchitectures are alsosuccessfully applied as an electrochemical supercapacitor with a goodspecific capacitance (312 F g
1 at 1.25 A g
1), good rate capabilityand excellent cycling property (maintaining about 89.4% at 1.25 Ag
1 after 3000 cycles).