A Cost-Effective Supercapacitor Material of Ultrahigh Specific Capacitances: Spinel Nickel Cobaltite Aerogels from an Epoxide-Driven Sol-Gel Process

Nickel cobaltite (NiCo2O4) aerogels, synthesized with a chloride‐based epoxide‐driven sol–gel process, exhibit ultrahigh specific capacitances (1400 F g−1; see figure), excellent reversibility, and outstanding cycle stability, at a relatively high mass loading of 0.4 mg cm−2.

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2010-01, Vol.22 (3), p.347-351
Main Authors: Wei, Te-Yu, Chen, Chun-Hung, Chien, Hsing-Chi, Lu, Shih-Yuan, Hu, Chi-Chang
Format: Article
Language:English
Subjects:
aerogels
Aluminum Oxide - chemistry
Cobalt - chemistry
Electric Impedance
epoxides
Gels - chemistry
Magnesium Oxide - chemistry
Nickel - chemistry
nickel cobaltite
Phase Transition
Sol-gels
supercapacitors
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Description
Summary:Nickel cobaltite (NiCo2O4) aerogels, synthesized with a chloride‐based epoxide‐driven sol–gel process, exhibit ultrahigh specific capacitances (1400 F g−1; see figure), excellent reversibility, and outstanding cycle stability, at a relatively high mass loading of 0.4 mg cm−2.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200902175