Growth of MFI zeolite film as corrosion protection layer of aluminum alloy

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题名:	Growth of MFI zeolite film as corrosion protection layer of aluminum alloy
作者:	蔣孝澈;Huang, Lin-Yi;Hao, Yuan-Chung;ChangJean, WenChyuan;Wang, Mei-Jhu;Chiang, Anthony S.T.;Tsai, Tseng-Chang
贡献者:	工學院化學工程與材料工程學系
关键词:	Aluminum alloy;Corrosion protection;Electrochemical impedance spectroscopy;Zeolite
日期:	2015-06-26
上传时间:	2026-04-21 14:37:26 (UTC+8)
出版者:	Elsevier;Elsevier Inc
摘要:	摘要： The dry-gel-conversion (DGC) and the in-situ crystallization (InC) for the growth of MFI zeolite films were examined. The combination of DGC method and H2O2 pre-treatment showed the best corrosion protection performance. The corrosion rate was reduced by five orders of magnitude in reference to the bare-substrate in NaCl solutions. Based on the electrochemical spectroscopy, the anti-corrosion property could be attributed to the formation of dense zeolite films and strongly bonded interfacial layers that acting as barrier layers for the protection against corrosive species. The corrosion resistances of the interfacial layer could be upgraded by either the InC or DGC grown MFI zeolite film. [Display omitted] •Synergism between zeolite film and interfacial layer preventing from NaCl attack.•Strong anti-corrosion property induced by dense zeolite films and strong interfacial layers.•DGC grows dense zeolite film for enhanced anti-corrosion capability.•H2O2 pre-treatment provides stronger interfacial layers than NaOH pre-treatment.•Electrochemical impedance spectroscopy for characterization of anti-corrosion film. 出版者： Elsevier Inc 出版日期： 2015-11-15 出處： Microporous and Mesoporous Materials, 2015-11, Vol.217, p.71-80 資源來源： Elsevier ScienceDirect Journals Complete - Autoholdings 版權： 2015 Elsevier Inc. 識別號： ISSN: 1387-1811 識別號： EISSN: 1873-3093 識別號： DOI: 10.1016/j.micromeso.2015.05.045
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