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Mesoporous graphene aerogel (GA) supported Pt nanoparticles with narrow size distribution were prepared via supercritical deposition (SCD) using supercritical CO2 (scCO2). Pt(cod)me2 precursor was dissolved in scCO2 and adsorbed onto GA at 35°C and 10.7MPa. The Pt precursor was converted to its metal form under atmospheric pressure at various temperatures. The effects of precursor conversion temperature...
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