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苯丙氨酸及其与抗坏血酸复配对酸性溶液中铜的缓蚀性能

Corrosion Inhibition Performance of Phenylalanine-Antiscorbic Acid Combinatory Inhibitor for Copper in Acidic Solution
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摘要 氨基酸类物质无毒、易生物降解,作为缓蚀剂的研究正在兴起。将苯丙氨酸与抗坏血酸复配作缓蚀剂,采用电化学交流阻抗法、极化曲线法研究了苯丙氨酸及其与抗坏血酸复配缓蚀剂在0.25 mol/L HCl溶液中对铜腐蚀的影响。结果表明:苯丙氨酸及其与抗坏血酸复配溶液均属于阴极型缓蚀剂;在0.25 mol/L HCl溶液中,苯丙氨酸浓度从1.0×10-5 mol/L增大至1.0×10-3 mol/L,缓蚀效果增强;复配溶液的缓蚀效果明显好于单独的苯丙氨酸,且随着复配溶液中抗坏血酸浓度的增加,缓蚀效果也明显提高。 Phenylalanine was mixed with antiscorbic acid to generate combinatory corrosion inhibitor. The effects of phenylalanine and its combinatory inhibitor on the corrosion behavior of Cu in 0.25 mol/L HCl were investigated based on measurements of electrochemical impedance spectra and polarization curves. Results indicate that both phenylalanine inhibitor and phenylalanine-antiscorbic acid combinatory inhibitor belong to cathode-type inhibitors. In the HCl solution with a concentration of 0.25 mol/L, the inhibition effectiveness of phenylalanine increased with increasing concentration from 1.0×10-5 mol/L to 1.0×10-3 mol/L. Besides, the combinatory inhibitor possessed much better inhibitory performance than phenylalanine, and the inhibition effectiveness of the combinatory inhibitor increased with in-creasing concentration of antiscorbic acid.
出处 《材料保护》 CAS CSCD 北大核心 2012年第2期25-27,85,共3页 Materials Protection
基金 国家自然科学基金(20776083,20911140272) 教育部新世纪优秀人才资助项目(NCET-08-0895)
关键词 缓蚀剂 苯丙氨酸 抗坏血酸 缓蚀性能 corrosion inhibitor phenylalanine antiscorbic acid corrosion inhibition performance
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参考文献8

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