首页|Sandwich-like porous MXene/Ni3S4/CuS derived from MOFs as superior supercapacitor electrode
Sandwich-like porous MXene/Ni3S4/CuS derived from MOFs as superior supercapacitor electrode
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NSTL
Elsevier
? 2022Metal-organic frameworks (MOFs) have ordered porous structure and intriguing properties for supercapacitors, however, poor conductivity and cycle stability limits their application. To solve these problems, hence, a simple strategy is proposed, by which MOFs are in-situ grown in the porous conductive p-MXene substrate. And then, along with the introduction of CuS, the grown Ni-MOF is derived to Ni3S4, which is more stable and more electrochemically active. Due to higher contact area, excellent synergistic effect and more exposed active sites, the prepared sandwiched p-MXene@Ni3S4/CuS nanostructure displays a big specific capacitance (1917 F·g?1) and superior cycling performance (91.2%@30000). What's more, the assembled p-MXene@Ni3S4/CuS//AC asymmetric device delivers a high energy density of 87.62 Wh·Kg?1 at the power density of 775.02 W·Kg?1, suggesting that this material provides a brilliant candidate for energy storage.
CuSMXeneNi-MOFPseudocapacitanceSulfurization
Guo H.、Yang F.、Zhang J.、Zhang T.、Hao Y.、Yang W.、Wang M.
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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
