Comparative Studies of NiO Nanoparticles Prepared From Different Precursors for Electrochemical Capacitor

Autor: Yong Yang, Jin Chen, Jingye He, Denghao Li, Liangdong Feng, Yaxin Gu, Liyao Zhu, Xiangqian Li
Rok vydání: 2013
Předmět:
Zdroj: Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry. 43:296-304
ISSN: 1553-3182
1553-3174
DOI: 10.1080/15533174.2012.740724
Popis: Using EPE as templates and hexamethylenetetramine as hydrolysis agent, precursors of Ni(OH)2 and Ni(HCO3)2 are controllably synthesized through adjusting the heating temperature and time. After calcined at 500°C, NiO nanoparticles have been fabricated from the precursors. The mesoporous NiO prepared from Ni(HCO3)2 had larger BET surface area than the microporous NiO prepared from Ni(OH)2. Both the NiO have good reversibility and capacitance capacity mainly resulted from pseudocapacitive capacitance. At the discharge current density of 500 mA g−1, the specific capacitance values are 736 and 533 F g−1 for the NiO materials calcined from Ni(HCO3)2 and Ni(OH)2, respectively.
Databáze: OpenAIRE
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