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In this study, we successfully manipulate the defect density and thickness (number of layers) of few-layer graphene sheets at low temperatures (≤300°C) using microwave plasma torch (MPT) coupled with plasma-enhanced chemical vapor deposition (PECVD) method. The graphene defects and thickness of 2-10 layers can be controlled by variation in the argon flow rate and pressure during graphene growth step...
Hollow hemisphere-shaped macroporous graphene/tungsten carbide/platinum (HMG/WC/Pt) nanocomposite has been synthesized as an efficient electrocatalyst for the oxygen reduction reaction (ORR). The HMG/WC/Pt sample has been systematically characterized by the X-ray diffraction (XRD), Scanning electron microscope (SEM) and Transmission electron microscopy (TEM). The analysis results indicate that the...
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