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In the present contribution, hard carbon spherules (HCSs) were synthesized from a deoiled asphaltene and were used as supporting materials for platinum (Pt) electrocatalyts. Pt nanoparticles were well dispersed on the surface of HCSs by an impregnation–reduction method. The morphology and microstructure of the as-prepared Pt/HCSs composites were studied by means of X-ray diffraction (XRD) and field-emission...
Onion-like fullerenes synthesized by arc discharge in water were used as support of Pt nanoparticles as electrocatalytic materials for direct methanol fuel cell. Uniform platinum nanoparticles with the average diameter of about 4.3 nm were well dispersed on the surface of onion-like fullerenes by impregnation-reduction method. The morphologies and microstructures of the as-prepared composites were...
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