Influence of polyethyleneimine addition on crystal size distribution of Au nanocrystals

T. Mikami, Y. Takayasu, J. Watanabe, Izumi Hirasawa

    Research output: Contribution to journalArticle

    17 Citations (Scopus)

    Abstract

    The influence of polyethyleneimine (PEI) addition on the crystal size distribution (CSD) of Au was investigated. PEI is a water-soluble cationic polyelectrolyte acting as a reducer of AuCl4 - and a stabilizer of precipitated Au nanocrystals. The CSD can be controlled by the PEI dosage, and an increase in PEI dosage decreased both the size and the size distribution width of the obtained Au nanocrystals. The idea of PEI-assisted reductive crystallization of Au may be helpful in the production of nanometals by using a simple batch crystallizer. Au nanocrystals with narrow CSD were precipitated via a polyethyleneimine (PEI)-assisted reductive crystallization process and the influence of PEI addition on the crystal size distribution of Au was investigated. An increase in PEI dosage decreased both the size and the size distribution width of the obtained Au nanocrystals.

    Original languageEnglish
    Pages (from-to)583-586
    Number of pages4
    JournalChemical Engineering and Technology
    Volume34
    Issue number4
    DOIs
    Publication statusPublished - 2011 Apr

    Fingerprint

    Polyethyleneimine
    Nanocrystals
    Crystals
    Crystallization
    Crystallizers
    Polyelectrolytes
    Water

    Keywords

    • Nanoparticles
    • Polyelectrolyte additive
    • Reactive crystallization

    ASJC Scopus subject areas

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

    Cite this

    Influence of polyethyleneimine addition on crystal size distribution of Au nanocrystals. / Mikami, T.; Takayasu, Y.; Watanabe, J.; Hirasawa, Izumi.

    In: Chemical Engineering and Technology, Vol. 34, No. 4, 04.2011, p. 583-586.

    Research output: Contribution to journalArticle

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