Preparation of copper-silicon dioxide nanoparticles with chemical vapor synthesis

A. Lähde (Corresponding Author), N. Kokkonen, A.J. Karttunen, S. Jääskeläinen, Unto Tapper, T.A. Pakkanen, Jorma Jokiniemi

    Research output: Contribution to journalArticleScientificpeer-review

    8 Citations (Scopus)


    Atmospheric pressure chemical vapor synthesis was used to produce copper nanoparticle composites in an amorphous silicon dioxide, i.e., either copper nanoparticles coated with amorphous silicon dioxide or copper nanoparticles embedded in amorphous silicon dioxide matrix. Synthesized metal–organic copper(I) complex was used as a precursor that provided well-defined ratio (1:2) of copper and silicon. The thermal decomposition of the Cu(I) complex molecule leads to homogenous nucleation and formation of copper nanoparticles which are subsequently coated with Si/SiO2 in the gas phase. The decomposition was greatly enhanced when reductive atmosphere, i.e., H2/N2 10 v% were used instead of pure nitrogen. A narrow size distribution with the geometric mean diameter of the particle agglomerates around 30 nm was observed while the primary size of the copper core particles was around 5 nm.
    Original languageEnglish
    Pages (from-to)3591-3598
    Number of pages8
    JournalJournal of Nanoparticle Research
    Issue number9
    Publication statusPublished - 2011
    MoE publication typeA1 Journal article-refereed


    • Aerosols
    • Cu-Si nanoparticle
    • gas phase coating
    • gas phase synthesis
    • metal-organic precursor


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