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Platinum hollow nanospheres are synthesized by Co nanoparticles as sacrificial template and then immobilized on graphene nanosheets (HNPt/G). The as-prepared nanostructure is characterized by TEM (transmission electron microscopy) and EDX (energy dispersion X-ray spectroscopy). The prepared HNPt/G is used as electrocatalyst for HER (hydrogen evolution reaction). For this purpose, GC (glassy carbon)...
The graphene paste electrode (GPE), modified with platinum nanoparticles (NPt), is fabricated and characterized by electrochemical impedance spectroscopy and cyclic voltammetry. Borohydride electrooxidation and hydrogen evolution reaction (HER) are investigated by cyclic voltammetry at surface of the fabricated electrode. Linear sweep voltammetry of NPt/GPE and NPt/carbon paste electrode in different...
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