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A simple and convenient method to fabricate new types of phytic acid-metal conversion coatings with excellent anti-corrosion performance on the iron substrate
Yan, Ru1; Gao, Xiang2; He, Wei1; Guo, Rui1; Wu, Ruonan1; Zhao, Zhuangzhi1; Ma, Houyi1
2017
发表期刊RSC ADVANCES
卷号7期号:65页码:41152-41162
文章类型Article
摘要A simple and practical method was developed to prepare a series of phytic acid (PA)-metal complex coatings on iron substrate by directly immersing the iron samples in the mixed solutions containing PA and metal ions. The key technologies of fabricating PA-metal complex coatings include: (i) anchoring of PA molecules onto the iron surface via complexation with Fe2+ ions dissolved from the iron substrate, and (ii) layer-by-layer deposition of PA-metal complexes on the PA/Fe2+ bottom layer through the bridging effect of additive metal ions. The present method was applicable to the film-forming process of a variety of metal ions, such as Zn2+, Ca2+, Co2+ and Ni2+, and the as-prepared PA-metal complex coatings were defined as PA-M conversion coatings (M = Zn2+, Ca2+, Co2+ and Ni2+ herein). Due to the strong coordination ability, PA molecules may be self-assembled on the iron surface, forming a layer of organic thin film (here defined as PA film), without the help of additive metal ions. However, the comparison between PA film and PA-M coatings shows that PA-M coatings were much thicker (over 15 mm) and denser and also possessed much stronger anti-corrosion performance compared to the PA film. The present study provides a new path for the fabrication of environmentally-friendly PA-based chemical conversion coatings and further broadens the application range of PA in metal surface pretreatment.
DOI10.1039/c7ra06186b
收录类别SCI
语种英语
WOS记录号WOS:000409096300059
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/143134
专题海洋腐蚀与防护研究发展中心
作者单位1.Shandong Univ, Sch Chem & Chem Engn, Key Lab Colloid & Interface Chem, State Educ Minist, Jinan 250100, Shandong, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
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GB/T 7714
Yan, Ru,Gao, Xiang,He, Wei,et al. A simple and convenient method to fabricate new types of phytic acid-metal conversion coatings with excellent anti-corrosion performance on the iron substrate[J]. RSC ADVANCES,2017,7(65):41152-41162.
APA Yan, Ru.,Gao, Xiang.,He, Wei.,Guo, Rui.,Wu, Ruonan.,...&Ma, Houyi.(2017).A simple and convenient method to fabricate new types of phytic acid-metal conversion coatings with excellent anti-corrosion performance on the iron substrate.RSC ADVANCES,7(65),41152-41162.
MLA Yan, Ru,et al."A simple and convenient method to fabricate new types of phytic acid-metal conversion coatings with excellent anti-corrosion performance on the iron substrate".RSC ADVANCES 7.65(2017):41152-41162.
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