Heterogeneous precipitation of gold nanoparticles on PEI coated silica gel

Takashi Mikami, Chisato Konno, Yuta Takayasu, Izumi Hirasawa

    Research output: Contribution to journalArticle

    2 Citations (Scopus)


    Gold nanoparticles were precipitated on the surface of silica gel without mechanical mixing. Polyethylenimine (PEI) which was coated on the surface of silica gel reduced raw materials of hydrogen tetrachloroaurate (III) tetrahydrate (HAuCl4·4H2O). Formation of gold nanoparticles on silica gel was con_rmed by using Field Emission Scanning Electron Microscope (FE-SEM) and Energy Dispersive X-ray Fluorescence Spectrometer (EDX). In this study, particles size distribution and coverage ratio of gold on silica gel were investigated.

    Original languageEnglish
    Pages (from-to)186-190
    Number of pages5
    JournalJournal of Chemical Engineering of Japan
    Issue number2
    Publication statusPublished - 2016 Feb 20



    • Nanoparticles
    • Polyelectrolyte
    • Precipitation

    ASJC Scopus subject areas

    • Chemical Engineering(all)
    • Chemistry(all)

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