Comparison between graphene supported Pt hollow nanospheres and graphene supported Pt solid nanoparticles for hydrogen evolution reaction

Reza Ojani, Roudabeh Valiollahi and Jahan-Bakhsh Raoof

Energy, 2014, vol. 74, issue C, 871-876

Abstract: 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) electrode modified by HNPt/G was fabricated (HNPt/G/GC). Electrochemical studies show that HNPt/G has a good electrocatalytic activity toward HER. For comparison solid Pt nanoparticles were synthesized and decorated on graphene (NPt/G). The HNPt/G exhibit an enhanced electrocatalytic performance for HER compared with NPt/G.

Keywords: Platinum hollow nanospheres; Graphene; Transmission electron microscopy; Hydrogen evolution reaction (search for similar items in EconPapers)
Date: 2014
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Citations: View citations in EconPapers (6)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:74:y:2014:i:c:p:871-876

DOI: 10.1016/j.energy.2014.07.062

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