Complete protection of a passive film on iron from breakdown in a borate buffer containing 0.1 M of Cl~- by coverage with an ultrathin film of two-dimensional polymer

Kunitsugu Aramaki; Tadashi Shimura

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Complete protection of a passive film on iron from breakdown in a borate buffer containing 0.1 M of Cl~- by coverage with an ultrathin film of two-dimensional polymer

机译：通过覆盖二维聚合物的超薄薄膜，完全保护铁上的钝化膜免于在含0.1 M Cl〜-的硼酸盐缓冲液中击穿

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摘要

An ultrathin film of two-dimensional polymer was prepared on a passivated iron electrode by modification of a 16-hydroxyhexadecanoate ion HO(CH_2)_(15)CO_2~- self-assembled monolayer with 1,2-bis(triethoxysilyl)ethane (C_2H_5O)_3Si(CH_2)_2Si(OC_2H_5)_3 and octadecyltriethoxysilane C_(18)H_(37)Si(OC_2H_5)_3. This film prevented passive film breakdown examined by potentiodynamic anodic polarization of the coated electrode in the borate buffer solution containing 0.1 M of Cl~-. Neither current spikes nor the pitting potential was observed in the passive and transpas-sive regions of polarization curve. The anodic current density was decreased in these regions markedly, implying hindrance to permeation of Cl~- and water through the film. Structure of the film was clarified by X-ray photoelectron and FTIR reflection spectroscopies and contact angle measurement with a drop of water. Electron-probe microanalysis of the passivated surface coated with the film after anodic polarization scanning up to the transpassive region revealed that the polymer film prevents pit initiation by an attack on the passive film with Cl~-.

机译：通过用1,2-双（三乙氧基甲硅烷基）乙烷（C_2H_5O）修饰16-羟基十六酸根离子HO（CH_2）_（15）CO_2〜-自组装单层膜，在钝化铁电极上制备二维聚合物超薄膜。）_3Si（CH_2）_2Si（OC_2H_5）_3和十八烷基三乙氧基硅烷C_（18）H_（37）Si（OC_2H_5）_3。该膜防止了在含0.1M Cl 2-的硼酸盐缓冲溶液中通过涂覆电极的电位动力学阳极极化所检查的钝化膜击穿。在极化曲线的无源和透射区域均未观察到电流尖峰或点蚀电位。在这些区域中，阳极电流密度显着降低，这意味着阻碍Cl-和水透过膜的渗透。通过X射线光电子和FTIR反射光谱以及与水滴的接触角测量来澄清膜的结构。在阳极极化扫描到透射型区域之后，对涂有该膜的钝化表面进行的电子探针显微分析表明，该聚合物膜可防止Cl_-对钝化膜的侵蚀而引起凹坑引发。

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来源
《Corrosion science》 |2006年第1期|p.209-225|共17页
作者
Kunitsugu Aramaki; Tadashi Shimura;
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作者单位

Keio University, 4-1-1 Hiyoshi, Kohoku-ku, Yokohama 223-8521, Japan;

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原文格式 PDF
正文语种 eng
中图分类金属腐蚀与保护、金属表面处理;
关键词
iron; two-dimensional polymer film; polarization; EPMA; passive film breakdown;

机译：铁;二维聚合物膜;极化;EPMA;无源膜击穿;

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1. Prevention of passive film breakdown and corrosion of iron in 0.1 M KClO_4 with and without cl~- by covering with an ultrathin two-dimensional polymer coating and healing treatment in 0.1 MNaNO_3 [J] . Kunitsugu Aramaki, Tadashi Shimura Corrosion science . 2010,第9期

机译：通过覆盖超薄的二维聚合物涂层并在0.1 MNaNO_3中进行愈合处理，防止在有或没有cl〜-的情况下防止在0.1 M KClO_4中铁的钝化膜破裂和腐蚀
2. Direct modification of a passivated iron electrode with alkyltriethoxysilanes for preventing passive film breakdown in a borate buffer containing 0.1 M of chloride ion [J] . Kunitsugu Aramaki, Tadashi Shimura Corrosion science . 2006,第8期

机译：用烷基三乙氧基硅烷直接修饰钝化的铁电极，以防止含0.1 M氯离子的硼酸盐缓冲液中钝化膜破裂
3. Prevention of passive film breakdown on iron in a borate buffer solution containing chloride ion by coverage with a self-assembled monolayer of hexadecanoate ion [J] . Kunitsugu Aramaki, Tadashi Shimura Corrosion science . 2003,第11期

机译：通过覆盖自组装的十六烷酸酯离子单层，可防止含氯离子的硼酸盐缓冲溶液中铁上的钝化膜击穿
4. CATHODIC REDUCTION OF PASSIVE FILMS ON IRON IN BORATE AND PHOSPHATE BUFFER pH 8.4: DIFFERENT MECHANISMS REVEALED BY IN SITU TECHNIQUES [C] . P. Schmuki, S. Virtanen, H.S. Isaacs International Symposium on State-of-the-Art Application of Surface and Interface Analysis Methods to Environmental Material Interactions: in Honor of James E.Castle's 65th Year, Mar 26-27, 2001, Washington D.C. . 2001

机译：阴极还原铁中的硼酸根和磷酸盐缓冲液pH 8.4的钝化膜：原位方法揭示了不同的机理
5. Optical characterization of polymer thin films: Specular and light scattering experiments and a new theoretical model for ultrathin films. [D] . Miller, Pascal. 1991

机译：聚合物薄膜的光学表征：镜面和光散射实验以及超薄膜的新理论模型。
6. Ultrathin Photonic Polymer Gel Films Templated by Non-Close-Packed Monolayer Colloidal Crystals to Enhance Colorimetric Sensing [O] . Shimo Yu, Shun Dong, Xiuling Jiao, 2019

机译：非紧密包装的单层胶体晶体为模板的超薄光子聚合物凝胶膜可增强比色传感
7. Protection of Iron against Corrosion in Various Solutions by Coverage of Passivated Iron with a Two-Dimensional Polymer Coating Prepared by Using Octyltriethoxysilane and Healing Treatment in 0.1 M NaNO₃ [O] . Tadashi Shimura, Kunitsugu Aramaki 2015

机译：通过使用辛基三氧基硅烷和愈合处理在0.1M纳米> 3 中，通过钝化铁覆盖各种溶液中的钝化溶液的耐钝液中的腐蚀。
8. Cathodic reduction of passive films on iron in borate and phosphate buffer ph8.4: different mechanisms revealed by in situ techniques [R] . Schmuki, Virtanen, Isaacs 2001

机译：硼酸盐和磷酸盐缓冲液中铁被动膜的阴极还原pH 8.4：原位技术释放的不同机制

Complete protection of a passive film on iron from breakdown in a borate buffer containing 0.1 M of Cl~- by coverage with an ultrathin film of two-dimensional polymer

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