Synthesis, characterization, and controlled release anticorrosion behavior of benzoate intercalated Zn-Al layered double hydroxides
Wang, Yi; Zhang, Dun; Zhang, D (reprint author), Chinese Acad Sci, Shandong Prov Key Lab Corros Sci, Inst Oceanol, Qingdao 266071, Peoples R China
2011-11-01
发表期刊MATERIALS RESEARCH BULLETIN
ISSN0025-5408
卷号46期号:11页码:1963-1968
文章类型Article
摘要Corrosion inhibitor-inorganic clay composite including benzoate anion intercalated Zn-Al layered double hydroxides (LDHs) are assembled by coprecipitation. Powder X-ray diffraction (XRD) and Fourier transform infrared (FT-IR) spectrum analyses indicate that the benzoate anion is successfully intercalated into the LDH interlayer and the benzene planes are vertically bilayer-positioned as a quasi-guest ion-pair form in the gallery space. Kinetic simulation for the release data, XRD and FT-IR analyses of samples recovered from the release medium indicate that ion-exchange is responsible for the release process and diffusion through the particle is also indicated to be the rate-limiting step. The anticorrosion capabilities of LDHs loaded with corrosion inhibitor toward Q235 carbon steel are analyzed by polarization curve and electrochemical impedance spectroscopy methods. Significant reduction of corrosion rate is observed when the LDH nanohybrid is present in the corrosive medium. This hybrid material may potentially be applied as a nanocontainer in self-healing coatings. Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved.; Corrosion inhibitor-inorganic clay composite including benzoate anion intercalated Zn-Al layered double hydroxides (LDHs) are assembled by coprecipitation. Powder X-ray diffraction (XRD) and Fourier transform infrared (FT-IR) spectrum analyses indicate that the benzoate anion is successfully intercalated into the LDH interlayer and the benzene planes are vertically bilayer-positioned as a quasi-guest ion-pair form in the gallery space. Kinetic simulation for the release data, XRD and FT-IR analyses of samples recovered from the release medium indicate that ion-exchange is responsible for the release process and diffusion through the particle is also indicated to be the rate-limiting step. The anticorrosion capabilities of LDHs loaded with corrosion inhibitor toward Q235 carbon steel are analyzed by polarization curve and electrochemical impedance spectroscopy methods. Significant reduction of corrosion rate is observed when the LDH nanohybrid is present in the corrosive medium. This hybrid material may potentially be applied as a nanocontainer in self-healing coatings. Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved.
关键词Layered Compounds Intercalation Reactions Electrochemical Measurements X-ray Diffraction
学科领域Materials Science
DOI10.1016/j.materresbull.2011.07.021
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收录类别SCI
语种英语
WOS记录号WOS:000296038700037
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被引频次:64[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/11469
专题海洋环境腐蚀与生物污损重点实验室
通讯作者Zhang, D (reprint author), Chinese Acad Sci, Shandong Prov Key Lab Corros Sci, Inst Oceanol, Qingdao 266071, Peoples R China
作者单位Chinese Acad Sci, Shandong Prov Key Lab Corros Sci, Inst Oceanol, Qingdao 266071, Peoples R China
第一作者单位中国科学院海洋研究所
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Wang, Yi,Zhang, Dun,Zhang, D . Synthesis, characterization, and controlled release anticorrosion behavior of benzoate intercalated Zn-Al layered double hydroxides[J]. MATERIALS RESEARCH BULLETIN,2011,46(11):1963-1968.
APA Wang, Yi,Zhang, Dun,&Zhang, D .(2011).Synthesis, characterization, and controlled release anticorrosion behavior of benzoate intercalated Zn-Al layered double hydroxides.MATERIALS RESEARCH BULLETIN,46(11),1963-1968.
MLA Wang, Yi,et al."Synthesis, characterization, and controlled release anticorrosion behavior of benzoate intercalated Zn-Al layered double hydroxides".MATERIALS RESEARCH BULLETIN 46.11(2011):1963-1968.
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