Multi-stage Ordered Mesoporous Carbon-graphene Aerogel-Ni3S2/Co4S3 for Supercapacitor Electrode |
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Authors: | Ning Li Dan Wang Xiu Liang Dongwei Li Guoran Liu Guanliang Sun Guanchen Xu Xingshuang Zhang Yong Li |
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Affiliation: | National Supercomputer Research Center of Advanced Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014 P. R. China |
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Abstract: | Transition metal sulfides have emerged as promising materials in supercapacitor. In this work, we firstly developed an interface-induced superassembly approach to fabricate NiSx and CoSx nanoparticles, which based on ordered mesoporous carbon-graphene aerogel composites for supercapacitor electrodes. The obtained multi-component superassembled nanoparticles-carbon matrix composites have controllable 3D porous structure of multi-stage composite. The two-dimensional graphene interlaced to form a 3D framework with large sponge-like pores, and then the graphene surface was loaded with mesoporous carbon with mesoporous pore size and vertical orientation. The composites display high specific capacitance of 958.1 F g?1 at 0.1 A g?1. The capacitance retains about 97.3 % after 3000 charging-discharging cycles at 2 A g?1. These results indicate that the obtained OMC?GA?Ni3S2/Co4S3 is a promising material for electrochemical capacitors, which providing new technical methods and ideas for the research of new energy and analytical sensor materials in the fields of energy storage, photocatalysis, point-of-care testing devices and other fields. |
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Keywords: | Ordered Mesoporous Carbon Supercapacitor Energy Storage OMC?GA?Ni3S2/Co4S3 |
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