Adsorption Mechanism of Nicotinic Acid onto a Passive Iron Surface
Tian Hui-Wen1,2; Li Wei-Hua1; Wang Da-Peng3; Hou Bao-Rong1; Li, WH (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Corros Sci Shandong, Qingdao 266071, Shandong, Peoples R China.
2012
发表期刊ACTA PHYSICO-CHIMICA SINICA
ISSN1000-6818
卷号28期号:1页码:137-145
文章类型Article
摘要Cyclic voltammetry and in situ Raman spectroscopy were used to determine the adsorption mechanism of nicotinic acid onto passive iron film surface. Its ability to form a surface complex tends to stabilize the interstitial Fe-II in Fe-III states and results in the progressive development of an insoluble film. Furthermore, an analytical investigation using a rotating electrochemical quartz crystal microbalance (rEQCM) showed that the adsorption isotherms of nicotinic acid onto iron in the active and passive states followed Langmuir-Freundlich behavior from which the adsorption constant, standard free energy of adsorption, and heterogeneity could be calculated. The organic molecules attach to the film surface by chemisorption and the interstitial cations are fixed in the octahedral sites giving stable nanocrystals. These assumptions were confirmed by scanning electron microscopy (SEM) and attenuated total reflection transform infrared (ATR FTIR) spectroscopy.
关键词Nicotinic Acid Passive Film On irOn Alkaline Medium Adsorption
学科领域Chemistry, Physical
DOI10.3866/PKU.WHXB201228137
URL查看原文
收录类别SCI
语种英语
WOS记录号WOS:000299721900019
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被引频次:10[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/337002/12459
专题海洋环境腐蚀与生物污损重点实验室
通讯作者Li, WH (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Corros Sci Shandong, Qingdao 266071, Shandong, Peoples R China.
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Corros Sci Shandong, Qingdao 266071, Shandong, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.Qingdao Univ Sci & Technol, Minist Educ & Shandong Prov, Key Lab Rubber Plast, Qingdao 266042, Shandong, Peoples R China
第一作者单位中国科学院海洋研究所
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GB/T 7714
Tian Hui-Wen,Li Wei-Hua,Wang Da-Peng,et al. Adsorption Mechanism of Nicotinic Acid onto a Passive Iron Surface[J]. ACTA PHYSICO-CHIMICA SINICA,2012,28(1):137-145.
APA Tian Hui-Wen,Li Wei-Hua,Wang Da-Peng,Hou Bao-Rong,&Li, WH .(2012).Adsorption Mechanism of Nicotinic Acid onto a Passive Iron Surface.ACTA PHYSICO-CHIMICA SINICA,28(1),137-145.
MLA Tian Hui-Wen,et al."Adsorption Mechanism of Nicotinic Acid onto a Passive Iron Surface".ACTA PHYSICO-CHIMICA SINICA 28.1(2012):137-145.
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