Preparations of platinum nanoparticles and their catalytic performances

Sang Chul Jung, Seung Won Nahm, Ho Young Jung, Young Kwon Park, Seong Gyu Seo, Sang Chai Kim

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


This work investigates the effect of reducing agents and stabilizing agent on the preparation of platinum nanoparticles. We used H2PtCl6as a precursor and hydrogen and sodium borohydride as reducing agents to prepare colloidal platinum nanoparticles. Polyvinylpyrrolidones (PVPs) is used as a stabilizing agent. Hydrogen and sodium borohydride are used as reducing agents. The prepared platinum nanoparticles are characterized by transmission electron microscopy (TEM) and X-ray diffractometer (XRD). The concentrations of the precursor and the stabilizing agent influence the size of platinum nanoparticles, while the reducing agents influence the morphologies and structures of platinum nanoparticles. Supported platinum catalysts (CPt-NaBH4, CPt-H2) are prepared from colloidal platinum nanoparticles and γ-Al2O3. For comparison, another supported platinum catalyst (IPt) is prepared by the conventional impregnation method with an aqueous H2PtCl6 solution and γ-Al2O3. The catalytic activities of CPts are superior to that of IPt on the basis of benzene conversion.

Original languageEnglish
Article numberA125
Pages (from-to)5461-5465
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Issue number7
StatePublished - 1 Apr 2015


  • Catalytic oxidation
  • Hydrogen
  • Nanoparticle
  • Platinum
  • Sodium borohydride


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