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- W3213253186 abstract "• Nickel nanoparticles as a template to prepare 3D graphene by carburizing and powder metallurgy. • Macrostructure and microstructure of 3D graphene depends on the shape of die and the size of nickel nanoparticles. • The as-synthesized 3D graphene shows an excellent electrochemical performance. • This novel idea can be extended to synthesis N-doped 3D graphene. The unique structure and excellent performance of three-dimensional graphene make it widely applicable in various fields like electronics, catalytic electrodes and sensors. However, it remains a challenge to produce low-cost, large-size and shape-controllable three-dimensional graphene. It is thus proposed in this study to prepare three-dimensional graphene by carburizing and powder metallurgy with triethylene glycol as the carbon source and nickel nanoparticles as a template. The morphology and microstructure of three-dimensional graphene were characterized by scanning electron microscopy, transmission electron microscopy, Raman spectroscopy and X-ray diffraction. The three-dimensional graphene consisting of multilayer graphene nanosheets is obtained that demonstrated not only large specific surface area but also high mechanical strength, which is conducive to increasing the area of contact with electrolyte and providing a conductive path for the active materials loaded on it. As a result, the electrochemical performance of supercapacitor can be improved effectively." @default.
- W3213253186 created "2021-11-22" @default.
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- W3213253186 date "2021-11-01" @default.
- W3213253186 modified "2023-09-23" @default.
- W3213253186 title "A novel synthesis of three-dimensional graphene by carburization and powder metallurgy from nickel nanoparticles" @default.
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- W3213253186 doi "https://doi.org/10.1016/j.matlet.2021.131264" @default.
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