The Morphology Evolution of Nickel Phosphite Hexagonal Polyhedrons and Their Primary Electrochemical Capacitor Applications

Pang H; Yan ZZ; Wei YY; Li XX; Li J; Zhang L; Chen J; Zhang JS; Zheng HH

Particle & Particle Systems Characterization, Vol.30, No.3, 287-295, 2013

DOI10.1002/ppsc.201200147 Export Citation

The Morphology Evolution of Nickel Phosphite Hexagonal Polyhedrons and Their Primary Electrochemical Capacitor Applications

Pang H, Yan ZZ, Wei YY, Li XX, Li J, Zhang L, Chen J, Zhang JS, Zheng HH

Nickel posphite (Ni11(HPO3)8(OH)6) hexagonal polyhedrons are successfully synthesized under hydrothermal conditions. The effect of surfactants on the growth mechanism of Ni11(HPO3)8(OH)6 are also explored. More importantly, Ni11(HPO3)8(OH)6 hexagonal polyhedrons are successfully applied as electrochemical supercapacitor electrode materials, which have a good specific capacitance (295 F g1 at 0.625 A g1), good rate capability, and cycling properties (maintained about 99.3% at 0.625 A g1 after 1000 cycles).

Keywords:electrochemical supercapacitors;hydrothermal conditions;nickel phosphite