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Hierarchically structured carbon nanofiber/graphene/MnO2(CGMn) hybrid with oxygen and nitrogen functionalities was fabricated in the form of a web via electrospinning as an electrode material for supercapacitors. The CGMn electrode exhibited a high capacitance (225 Fg−1 at 1 mAcm−2), enhanced energy and power efficiency (15.8–13.6 Whkg−1 in the power density range of 197–4000 Wkg−1), and excellent...
Graphene/carbon composite nanofibers (CCNFs) with attached TiO 2 nanoparticles (TiO 2 –CCNF) were prepared, and their photocatalytic degradation ability under visible light irradiation was assessed. They were characterized using scanning and transmission electron microscopy, X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, and ultraviolet–visible diffuse spectroscopy...
The electrospinnability of pitch was improved by blending in a solution of polyacrylonitrile (PAN) resulting in the reduction of the average fiber diameter from 2000 to 750nm. The compositions showing good spinnability are proposed within the soluble concentrations in the ternary phase diagram of the PAN–pitch-solvent, which contains lower concentration of the pitch. Activated carbon fibers were derived...
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