Relationship between the molecular structure and the inhibition performance of triazole compounds using electrochemical methods
Relationship between the molecular structure and the inhibition performance of triazole compounds using electrochemical methods
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DOI：
10.1108/00035599810198741
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发表时间：
1998-01-01
影响因子：
1.2
通讯作者：
Abu-Orabi, S
中科院分区：
文献类型：
--
作者：
Abdennabi, AMS;Abdulhadi, AI;Abu-Orabi, S
缓蚀剂代表了控制与石油和天然气生产相关的内部腐蚀的最具成本效益和灵活的手段。进行了测试，以证明有效控制抑制效率的结构/效应关系。为了说明这种方法，1（苄基）1-H-4，5-二苯甲酰基-1，2，3-三唑（BDBT）的缓蚀作用的对位取代基场效应进行了研究。在酸性介质中，采用旋转圆柱形软钢电极，结合塔菲尔极化技术、交流阻抗测量和连续线性极化电阻法，研究了在酸性介质中的极化曲线。硝基基团被发现会导致母体化合物BDBT的缓蚀性显著降低。由于溴对芳环的诱导作用，溴代衍生物比甲基衍生物具有更好的缓蚀保护作用。在线极化曲线表明，所研究的对位取代基的缓蚀能力依次为：NO2 <CH 3 < Br < H。
Corrosion inhibitors represent the most cost effective and flexible means of controlling internal corrosion associated with oil and gas production. Tests were carried out to demonstrate the structure/effect relationships which are effective in controlling the inhibition efficiency. To illustrate this approach, the substituent field effect at the paraposition of 1(Benzyl)1-H-4,5-Dibenzoyl-1,2,3-Triazole (BDBT) on corrosion inhibition has been investigated. Mild steel rotating cylinder electrode in acid media was used in conjunction with Tafel polarization technique, AC impedance measurements and continuous linear polarization resistance method. The nitro group was found to cause a considerable decrease in the corrosion inhibition of the parent compound BDBT. Owing to the induction effects of Br on the aromatic ring the bromo derivative has better inhibition protection than the methyl derivative. The corrosion rate profiles obtained from on-line polarization technique showed that the inhibition capacity of the studied substituents at the para-position increases as follows: NO2 < CH3 < Br < H.