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- Title
A novel MOF-derived binary metal oxides and carbon nanocomposite for high-performance symmetric supercapacitor application.
- Authors
Zheng, Sheng Qiang; Lim, Siew Shee; Foo, Chuan Yi; Haw, Choon Yian; Chiu, Wee Siong; Chia, Chin Hua; Khiew, Poi Sim
- Abstract
Transition metal oxides/carbon nanocomposites derived from metal–organic frameworks (MOFs) with enhanced electronic conductivity and high theoretical capacitance have been viewed as novel porous nanostructured electrode materials for electrochemical energy storage applications. Herein, sodium ion-intercalated MoO3/NiO/C nanostructures derived from MOFs were prepared through a facile solvothermal approach and followed by calcination at 400 °C. The as-synthesized nanocomposites were characterized using FT-IR, FESEM, EDX, XRD, TEM, and TGA. Benefitting from the synergistic effects and improved ionic transfer channels, the delivered maximum electrochemical capacitance was 548.41 F g−1 in 2-M KOH. Moreover, the electrochemical property was analyzed in terms of CV, EIS, and GCD, respectively, in a two-electrode system in an environmental-friendly aqueous electrolyte and a high energy density of 17.93 Wh kg−1 was acquired when a symmetric supercapacitor device was assembled. Besides, a remarkable retained specific capacitance and coulombic efficiency were approximately at 99.67% and 96.66% after 8000 continuous cycles. It evidently revealed the potential application of MOF-derived metal oxides/carbon composites in high-performance electrochemical energy storage devices.
- Publication
Journal of Materials Science: Materials in Electronics, 2023, Vol 34, Issue 21, p1
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-023-10976-9