The Morphology Evolution of Nickel Phosphite Hexagonal Polyhedrons and Their Primary Electrochemical Capacitor Applications |
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| Authors: | Huan Pang Zhenzhen Yan Yuanyuan Wei Xuexue Li Juan Li Li Zhang Jing Chen Jiangshan Zhang Honghe Zheng |
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| Institution: | 1. College of Chemistry and Chemical Engineering, Anyang Normal University, , Anyang, 455002 Henan, P. R. China;2. School of Energy, Soochow University, , Suzhou, 215006 Jiangsu, P. R. China;3. State Key Laboratory of Coordination Chemistry, Nanjing University, , Nanjing, 210093 Jiangsu, P. R. China |
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| Abstract: | 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 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). |
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| Keywords: | electrochemical supercapacitors hydrothermal conditions nickel phosphite |
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