| 酸性介质中新型三唑类缓蚀剂在碳钢上的吸附行为 |
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| 引用本文： | 何桥,张胜涛,李伟华,裴长岭,侯保荣. 酸性介质中新型三唑类缓蚀剂在碳钢上的吸附行为[J]. 腐蚀与防护, 2008, 29(5): 243-247 |
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| 作者姓名： | 何桥 张胜涛 李伟华 裴长岭 侯保荣 |
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| 作者单位： | 重庆大学化学化工学院,重庆,400044;中国科学院海洋研究所,青岛,266071;青岛理工大学土木工程学院,青岛,266033 |
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| 摘 要： | 合成了一种新型三唑衍生物:苯戊酮-O-1-(1.3.4-三氮唑)亚甲基肟(POTM),通过失重试验、交流阻抗、动电位极化研究了其在酸性介质中的缓蚀效率,并用扫描电镜方法观察了碳钢表面的腐蚀形貌。对热力学参数进行了讨论,表明化合物在碳钢表面上的吸附行为服从Langmuir吸附等温式。同时用量子化学中的从头算方法对缓蚀剂的分子结构与缓蚀性能的关系进行了研究。
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| 关 键 词： | 三唑衍生物 缓蚀剂 电化学实验 Langmuir吸附等温式 量子化学计算 |
| 文章编号： | 1005-748X(2008)05-0243-04 |
| 修稿时间： | 2007-06-15 |
Adsorption Behaviour of New Triazole Derivative as Inhibitor on Mild Steel in Acid Medium |
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| HE Qiao,ZHANG Sheng-tao,LI Wei-hua,PEI Chang-ling,HOU Bao-rong. Adsorption Behaviour of New Triazole Derivative as Inhibitor on Mild Steel in Acid Medium[J]. Corrosion & Protection, 2008, 29(5): 243-247 |
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| Authors: | HE Qiao ZHANG Sheng-tao LI Wei-hua PEI Chang-ling HOU Bao-rong |
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| Abstract: | Pentanophenone-O-1-(1.3.4-triazolyl)-metheneoxime(POTM) has been synthesized as a new corrosion inhibitor of mild steel in acid media.The inhibition efficiency was evaluated by means of weight loss,electrochemical impedance spectroscopy(EIS) and polarization curves.The surface morphology was studied by scanning electron microscopy(SEM).The thermodynamic parameters were determined and discussed.The relationship between molecular structure of the compound and the inhibition efficiency was investigated by ab initio quantum chemistry calculations.The adsorption of triazole derivatives was found to obey Langmuir adsorption isotherm. |
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| Keywords: | triazole derivative inhibitor electrochemical experiment Langmuir adsorption isotherm quantum chemistry calculation |
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