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Facile Approach to Prepare Nickel Cobaltite Nanowire Materials for Supercapacitors
Author(s) -
Wang Huanlei,
Gao Qiuming,
Jiang Lei
Publication year - 2011
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201100534
Subject(s) - cobaltite , supercapacitor , nickel , nanowire , capacitance , cobalt , materials science , nanocrystal , mesoporous material , electrochemistry , hydrothermal circulation , thermal decomposition , nanotechnology , chemical engineering , metallurgy , electrode , chemistry , catalysis , organic chemistry , engineering
Excellent electrochemical performance results from the coexistence of nickel and cobalt ions, with mesoporous characteristics and nanocrystal structure. Nickel cobalt nanowire is prepared by hydrothermal and thermal decomposition processes. High capacitance of 722 F g −1 can be obtained at 1 A g −1 in 6 M KOH, with a capacitance retention ratio of ca. 79% at 20 A g −1 .