ポリエチレンイミンを含む溶液からの球状電解銅粉の作製

Translated title of the contribution: Production of spherical electrolytic copper powder from the solution containing polyethyleneimine

Kentaro Ochi, Makoto Sekiguchi, Satoshi Oue, Hiroaki Nakano

    Research output: Contribution to journalArticlepeer-review

    Abstract

    It was investigated whether the spherical electrolytic copper powder could be electrolyzed by adding polyethyleneimine (PEI) in the electrolytic solution. In order to identify the optimum electrolysis conditions for the electrodeposition of spherical copper powder, we investigated the effect of molecular weight of PEI, the amount of PEI added, the current density, and the cathode material on the morphology of electrolytic copper powder. The electrodeposited copper powder was analyzed with a scanning electron microscope, a laser diffraction scattering particle size distribution measuring device, and an X–ray diffractometer. It was found that the spherical copper powder can be obtained by electrolysis at 3000 A·m−2 scraping copper powder every 10 to 60 s in solution containing 0.126 mol·dm−3 Cu2+, 0.5 mol·dm−3 free H2SO4 and 1.0 g·dm−3 PEI with average molecular weight 10000. [doi:10.2320/jinstmet.J2021032]

    Translated title of the contributionProduction of spherical electrolytic copper powder from the solution containing polyethyleneimine
    Original languageJapanese
    Pages (from-to)413-419
    Number of pages7
    JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
    Volume85
    Issue number11
    DOIs
    Publication statusPublished - 2021

    All Science Journal Classification (ASJC) codes

    • Condensed Matter Physics
    • Mechanics of Materials
    • Metals and Alloys
    • Materials Chemistry

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