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Understanding the effect of minor elements such as oxygen and nitrogen on the growth of graphene is crucial to fabrication of graphene single crystals (GSC) with large grain size. In this study, we investigate the nucleation and growth behavior of graphene domains on commercial copper foils as a function of oxygen partial pressure in the chemical vapor deposition (CVD) chamber. To achieve repeatable...
Carbon/carbon composites pretreated by an argon plasma were coated by hydroxyapatite (HA) using a plasma spraying method. The morphology, the compositions of the coating and bond strength between HA and substrate were investigated by scanning electron microscopy, X-ray diffraction, infrared spectrometry and a scratching test. Results indicate that although the morphology and phase compositions of...
Highly uniform foam-like carbon monolith with mesoporous structure has been synthesized using an ultrasound-assisted air bubbling strategy in self-assembled F127 and poly-(benzoxazine-co-resol)-based aqueous emulsions. The air bubbling strategy is easy and green as the use of additional inorganic foaming agent or solid templates is not required. Furthermore, it has been found that an ultrasound treatment...
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