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The use of reduced graphene oxide (rGO) as an environmentally friendly, multi-functional conductive binder is proposed as a novel strategy for manufacturing free-standing, flexible, high-performance hard carbon anodes for sodium ion batteries (NIBs). Compared with the conventional electrodes fabricated with insulating, fluorine-containing polymer binder (PVDF), the unique two-dimensional structure...
A simple method was proposed to prepare a high surface area and hierarchical porous carbon for supercapacitors by one step carbonization-activation of poly (vinylidene chloride) with NaOH. The porous carbon has hierarchical micropores, mesopores and macropores with a high surface area of 2815m 2 g −1 . Its capacitance reaches 376 and 215Fg −1 at current densities of 0.05 and...
By embedding carbon nanotubes into poly(3,4-ethylenedioxythiophene)–poly(styrenesulfonate) (PEDOT–PSS) supermolecular hydrogels in the presence of a very small amount of polyvinyl alcohol (PVA), we have presented the fabrication of ultralight conducting polymer/carbon nanotube composite aerogels with the apparent density of 0.04–0.07g/cm 3 made by supercritical CO 2 drying of as-made...
A simple method for the preparation of microporous carbon was presented by pyrolyzing poly(vinylidene fluoride) (PVDF) at high temperature under N 2 atmosphere without activation or any other additional processes. The yield of PVDF-derived carbon is 35.0%. Its specific surface area reaches 1012m 2 g with a pore volume of 0.41cm 3 g −1 . The carbon is microporous with...
Mesoporous carbon has been synthesized using nano-CaCO 3 as a template and sucrose as carbon precursor. It is shown that the CaCO 3 /sucrose weight ratio has a marked effect on the porosity of the carbon. At a weight ratio of CaCO 3 /sucrose of 1:1, the surface area of the carbon reaches 892m 2 g −1 and the pore size is around 45nm. The carbon shows a capacitance...
Multi-walled carbon nanotubes (MWNTs) were electrochemically oxidized by a constant-potential electrolysis method and then investigated in detail using scanning electron microscope, transmission electron microscope, FT-IR, electrical impedance spectroscopy, and cyclic voltammetry. The FT-IR spectra showed that the amount of hydroxyl generated on the surface of MWNTs increased with increasing the electrochemical...
Carbon black (CB) loading greatly affects the in-situ fibrillation of CB/poly (ethylene terephthalate) (PET) compound in a polyethylene (PE) matrix during melt mixing, slit die extrusion and hot stretching. CB/PET/PE composites with lower CB loadings display well-defined CB/PET microfibrils in which all the CB particles are localized. The surface microstructure (mainly amount and distribution of CB...
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