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For aviation and automobile applications, etc., high dimensional stability is critically important since the mismatch in linear coefficient of thermal expansion (LCTE) between polyethersulfone (PES) and metal materials would lead to dimensional instability. In this work, the GO-coating treatment is proposed to greatly enhance the dimensional stability of injection molded short carbon fiber (SCF)/PES...
Graphene has very significant optical and electronic properties, which attract enormous attention. As a unique two-dimensional crystal with one atom thickness, it has high electron and thermal conductivities in addition to flexibility, robustness and impermeability to gases. Its ultra-broad band optical response and excellent non-linear optical properties make it a wonderful material for developing...
Graphene is used as a barrier film to suppress the “shuttle effect” and to improve the performance of activated carbon–sulphur hybrid cathode materials in a lithium-sulphur battery by forming a core–shell structure. Graphene wraps around the activated carbon–sulphur hybrid to form a core–shell structure, in which the porous carbon framework stores most of the sulphur and the graphene layer suppresses...
A simple route to achieve covalently-grafted polyaniline (PANI)/graphene oxide (GO) nanocomposites has been developed. The synthesized composites showed a uniform hierarchical morphology of the PANI thin film and short rod-like nanostructures that had densely grown on the GO sheets, in contrast to the nonuniform morphology of noncovalently-grafted PANI/GO. Compared to pure PANI and noncovalently-grafted...
Mesoporous graphene with three dimensional structure (3dGR) is prepared by a modified Hummers method and a simple solvent treatment. The solvent-treated graphene nanosheets show wrinkled structure and agglomerate to form the mesoporous structure. The pore size distribution of 3dGR based on density functional theory (DFT) shows the pore size ranging from 2.3–40nm. 3dGR shows excellent electrochemical...
A simple and efficient approach for coating multiwalled carbon nanotubes (MWCNTs) with size-controllable SnO 2 nanoparticles by chemical vapor deposition has been developed using tin hydride (SnH 4 ) gas as the source of SnO 2 at 550°C. The size and coverage of SnO 2 nanoparticles can be adjusted by simply controlling the deposition time and the flow rate of the SnH...
Gelcasting, an in situ consolidation colloid forming process, is promising for the manufacture of structural ceramics with various shapes. In this case, the gelcasting process was adopted to obtain carbon artifacts with complex shapes. The mesocarbon microbead (MCMB) that has self-sintering property was chosen as the starting material. In order to optimize the MCMB suspensions for gelcasting, the...
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