Novel application of a hormone biosynthetic inhibitor for the corrosion resistance enhancement of copper in synthetic seawater
Novel application of a hormone biosynthetic inhibitor for the corrosion resistance enhancement of copper in synthetic seawater
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DOI：
10.1016/j.corsci.2011.06.025
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发表时间：
2011-10
影响因子：
8.3
通讯作者：
H. Tian;Wei-hua Li;B. Hou
中科院分区：
文献类型：
--
作者：
H. Tian;Wei-hua Li;B. Hou
采用量子化学计算、失重法、电化学测试、SEM、EDS和FTIR等方法，研究了一种激素生物合成抑制剂对铜在不同条件下的耐海水腐蚀性能的影响。结果表明，烯效唑是一种混合型缓蚀剂，通过吸附在铜表面抑制电荷转移过程。热力学计算表明，化学吸附符合Langmuir等温式，吸附量随浸泡时间的延长而增加。在碱性条件下加缓蚀剂的耐蚀性优于在酸性或中性条件下的耐蚀性。在不同温度和长时间浸泡下均具有良好的缓蚀性能。
Effects of a hormone biosynthetic inhibitor on corrosion resistance of copper in synthetic seawater under various conditions were evaluated via quantum chemistry calculations, weight loss, electrochemical techniques, SEM, EDS, and FTIR. Comparable results show that uniconazole acts as a mixed-type inhibitor, suppressing charge transfer process by adsorption on copper surface. Thermodynamic calculation indicates that chemisorption is in accordance with Langmuir isotherm and adsorption amount increases with immersion time. The corrosion resistance with inhibitor under alkaline conditions is better than that under acidic or neutral conditions. Good inhibition performances at different temperatures and during a long time immersion are observed.