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The Morphology Evolution of Nickel Phosphite Hexagonal Polyhedrons and Their Primary Electrochemical Capacitor Applications
Author(s) -
Pang Huan,
Yan Zhenzhen,
Wei Yuanyuan,
Li Xuexue,
Li Juan,
Zhang Li,
Chen Jing,
Zhang Jiangshan,
Zheng Honghe
Publication year - 2013
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.201200147
Subject(s) - supercapacitor , nickel , electrochemistry , hydrothermal circulation , hexagonal crystal system , capacitance , chemical engineering , materials science , morphology (biology) , polyhedron , electrode , nanotechnology , chemistry , metallurgy , crystallography , geometry , mathematics , biology , engineering , genetics
Nickel posphite (Ni 11 (HPO 3 ) 8 (OH) 6 ) hexagonal polyhedrons are successfully synthesized under hydrothermal conditions. The effect of surfactants on the growth mechanism of Ni 11 (HPO 3 ) 8 (OH) 6 are also explored. More importantly, Ni 11 (HPO 3 ) 8 (OH) 6 hexagonal polyhedrons are successfully applied as electrochemical supercapacitor electrode materials, which have a good specific capacitance (295 F g −1 at 0.625 A g −1 ), good rate capability, and cycling properties (maintained about 99.3% at 0.625 A g −1 after 1000 cycles).