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The hollowed-out tubular carbon@MnO2 hybrid composites with hierarchical morphology have been successfully prepared via the redox reaction between MnO4− and tubular carbonized kapok fiber. The morphology and electrochemical performance of the as-prepared hybrid composites can be facilely controlled by adjusting the concentration of MnO4−. The carbon@MnO2 electrode with tubular structure of the assembled...
Carbon/manganese dioxide (C/MnO 2 ) hybrid nanotubes were prepared by the successive deposition of carbon and manganese dioxide using natural halloysite nanotubes as template. The as-prepared hybrids were characterized with transmission electron microscope, Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, and Brunauer–Emmett–Teller techniques...
Graphene/polyaniline hybrid hollow microspheres are prepared via combining layer-by-layer assembly technique with in situ chemical oxidative polymerization after etching the templates for high-performance supercapacitor application. The hollow structure is characterized by transmission electron microscopy indicating that the inner diameter of the hollow microspheres is about 2.0 µm. The electrochemical...
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