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Dissolution-induced nanowire synthesis on hot-dip galvanized surface in supercritical carbon dioxide

Research output: Contribution to journalArticleScientificpeer-review


Original languageEnglish
Article number181
Issue number7
Publication statusPublished - 11 Jul 2017
Publication typeA1 Journal article-refereed


In this study, we demonstrate a rapid treatment method for producing a needle-like nanowire structure on a hot-dip galvanized sheet at a temperature of 50 C. The processing method involved only supercritical carbon dioxide and water to induce a reaction on the zinc surface, which resulted in growth of zinc hydroxycarbonate nanowires into flower-like shapes. This artificial patina nanostructure predicts high surface area and offers interesting opportunities for its use in industrial high-end applications. The nanowires can significantly improve paint adhesion and promote electrochemical stability for organic coatings, or be converted to ZnO nanostructures by calcining to be used in various semiconductor applications.


  • Nanowire, Supercritical carbon dioxide, Zinc hydroxycarbonate

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Field of science, Statistics Finland

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