Electrochemical 3D-growth of amorphous silica gel

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• 作者：Gianmarco Giordano^a ; Christian Durante^b ; ^{christian.durante@unipd.it} ; Armando Gennaro^b ; ^{armando.gennaro@unipd.it} ; Massimo Guglielmi^a
• 关键词：Sol-gel ; Ionic conductivity ; Thin film ; Coating ; Electrochemistry
• 刊名：Journal of Electroanalytical Chemistry
• 出版年：2017
• 出版时间：1 January 2017
• 年：2017
• 卷：784
• 期：Complete
• 页码：153-158
• 全文大小：963 K
• 卷排序：784

文摘

A pseudo 3D-like growth of silica was investigated on stainless steel. Electrochemically assisted sol-gel deposition shows progressive nucleation behavior. Current transient are the result of H3O+ reduction at the electrode surface. The H3O+ availability depends on SiOH sites close to the electrode surface. H3O+ migrates through the porous silica gel structure along neighboring SiO sites.