Synthesis of Platinum Nanoparticles by Reductive Crystallization Using Polyethyleneimine

Hideyuki Nagao, Masumi Ichiji, Izumi Hirasawa

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    Abstract

    Sub-10-nm-sized Pt nanoparticles were synthesized by reducing Pt ions with NaBH4, with the addition of polyethyleneimine (PEI) as a protective reagent. Well-dispersed Pt nanoparticles with a narrow size distribution were successfully produced. When lowering the pH of the PEI solution, cubic and tetrahedral nanoparticles were observed, while at a higher pH, only spherical nanoparticles were produced. In addition, by selecting a suitable concentration of PEI, the protective reagent itself can reduce Pt ions to generate Pt nanoparticles with diameters in the range of 12.9–70.7 nm. This shows the potential of one-pot synthesis of Pt nanoparticles by just adding Pt ions and PEI.

    Original languageEnglish
    Pages (from-to)1242-1246
    Number of pages5
    JournalChemical Engineering and Technology
    Volume40
    Issue number7
    DOIs
    Publication statusPublished - 2017 Jul 1

    Fingerprint

    Polyethyleneimine
    Crystallization
    Platinum
    Nanoparticles
    Ions

    Keywords

    • Crystal size distribution
    • Platinum nanoparticles
    • Polyethyleneimine
    • Reductive crystallization

    ASJC Scopus subject areas

    • Chemistry(all)
    • Chemical Engineering(all)
    • Industrial and Manufacturing Engineering

    Cite this

    Synthesis of Platinum Nanoparticles by Reductive Crystallization Using Polyethyleneimine. / Nagao, Hideyuki; Ichiji, Masumi; Hirasawa, Izumi.

    In: Chemical Engineering and Technology, Vol. 40, No. 7, 01.07.2017, p. 1242-1246.

    Research output: Contribution to journalArticle

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