Journal
MATERIALS RESEARCH BULLETIN
Volume 149, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2022.111745
Keywords
Binary metal oxide; MnO2; NiO; Supercapacitor
Categories
Funding
- Research Fund of the Erciyes University [FBG-2020-9715]
- Council of Higher Education of Turkey [100/2000 YOK PhD]
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This research reports a facile and rational synthesis procedure to fabricate a high-performance supercapacitor electrode. The NiO/MnO2/CNT composite exhibits a wonderfully stratified flower-like morphology and shows high specific capacitance and good cyclic stability.
Binary metal oxides have been broadly investigated as a new electrode material for supercapacitor applications owing to their high reversible performance and good conductivity. When compared to a single candidate, the composite's electrochemical performance is considerably improved by the unique mix of pseudo-material and carbon material. Herein, we report a facile and rational synthesis procedure to fabricate a high performance supercapacitor electrode. The prepared NiO/MnO2/ carbon nanotube (CNT) composite has wonderfully stratified flower-like morphology. The positive synergism among components and unique structure has enabled a high specific capacitance of 1320 F/g at 1 A g-1. After 3000 cycles, the supercapacitor maintains more than 90% of its initial capacitance. Moreover, we also successfully prepared a symmetrical supercapacitor which is made up of two pieces of composite electrode separated with a membrane. The findings highlight that NiO/MnO2/CNT composite is highly desirable for future hybrid energy storage applications.
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