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The electrocatalytic performance of the carbon supported catalysts can be effectively influenced by controlling the atomic structure of carbon materials. Herein, novel graphene nanospheres (GNs) composed of graphene nanoflakes are prepared through a modified arc-discharge method using toluene as carbon source. It is explored that these GNs possess high density of lattice disorder as well as the oxygen-containing...
Rapid expansion in microelectronic devices has prompted increasing research efforts in development of high-frequency electromagnetic wave absorption materials. Multiple-phase FeSn2/Sn/Graphite core–shell nanoparticles synthesized by an arc-discharge method, with controllable components and structures, present a typical cloaking feature aroused from the superior electromagnetic wave absorption. Based...
Small angle neutron scattering (SANS), scanning transmission electron microscopy (STEM) and gas adsorption, were applied to study the morphology and hydrogen adsorption properties of a wood-based ultramicroporous carbon (UMC) and a poly(furfuryl alcohol) derived carbon (PFAC). The polydispersed spherical model and the Guinier analysis of the scattering profiles were applied to obtain morphological...
A simple, inexpensive and one-step synthesis method of metal-containing carbon nanocapsules using an arc discharge in aqueous solution is reported. It was found that Ni, Co and Fe nanoparticles could be in situ encapsulated in carbon shells when the arc was performed respectively in aqueous solutions of NiSO 4 , CoSO 4 and FeSO 4 . Transmission electron microscopy, energy dispersive...
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