首页|High-efficiency hybrid supercapacitor based on three-dimensional interconnected nitrogen-rich caCTF-1?@pC-C3N4 network and NiCoTe2
High-efficiency hybrid supercapacitor based on three-dimensional interconnected nitrogen-rich caCTF-1?@pC-C3N4 network and NiCoTe2
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NSTL
Elsevier
? 2022The caCTF-1 derived from CTF-1 by carbonization is introduced into the multi-step heat treatment carbon repaired pC-C3N4 to form a 3D interconnected nitrogen-rich carbon structure (caC@pC). Through carbon repairing process, the obtained pC-C3N4 has an extended π-conjugate plane and it is closely interconnected with the nitrogen-rich caCTF-1, thereby accelerating charge transfer, improving energy storage, and exhibiting high specific capacitance (535.8 F·g?1 under 1 A·g?1) and good rate performance. In addition, by employing MOF with diphenyl semicarbazide structural unit as a precursor, NiCoTe2 is prepared by a simple hydrothermal process, which exhibits high redox activity with a high specific capacitance of 2006.0 F·g?1 at 1 A·g?1 and good cycle stability. The hybrid supercapacitor NiCoTe2//caC@pC HSC is assembled with caC@pC as the negative electrode and NiCoTe2 as the positive electrode. When the power density is 790.05 W·kg?1, it exhibits a high energy density of 50.84 Wh·kg?1 and high cycle stability. After 25,000 cycles, the capacitance retention rate is 87.88%.
Energy storageGraphitic carbon nitrideHybrid supercapacitorNanohybridNitrogen-rich porous carbon
Yang F.、Yang M.、Zhang J.、Guo H.、Zhang T.、Yang W.
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Key Lab of Eco-Environments Related Polymer Materials of MOE Key Lab of Bioelectrochemistry and Environmental Analysis of Gansu Province College of Chemistry and Chemical Engineering Northwest Normal University Gansu International Scientific and Technolog
NSTL
Elsevier
