郑兴文,龚敏,曾宪光,姜春梅,卢立娟,捷克子沙.L-苯丙氨酸对Q235钢在硫酸中的缓蚀作用[J].表面技术,2012,(3):33-36.
ZHENG Xing-wen,GONG Min,ZENG Xian-guang,JIANG Chun-mei,LU Li-juan,JIEKE Zi-sha.Corrosion Inhibition of L-phenylalanine for Q235 Steel in Sulfuric Acid Solutions[J].Surface Technology,2012,(3):33-36 |
| L-苯丙氨酸对Q235钢在硫酸中的缓蚀作用 |
| Corrosion Inhibition of L-phenylalanine for Q235 Steel in Sulfuric Acid Solutions |
| 投稿时间：2011-12-26 修订日期：2012-06-20 |
| DOI： |
| 中文关键词: L-苯丙氨酸 Q235钢 缓蚀剂 吸附行为 |
| 英文关键词:L-phenylalanine Q235 steel corrosion inhibitor adsorption behavior |
| 基金项目:材料腐蚀与防护四川省重点实验室项目(2009CL008) |
| 作者 | 单位 |
| 郑兴文 | 四川理工学院,自贡643000 |
| 龚敏 | 四川理工学院,自贡643000 |
| 曾宪光 | 四川理工学院,自贡643000 |
| 姜春梅 | 四川理工学院,自贡643000 |
| 卢立娟 | 四川理工学院,自贡643000 |
| 捷克子沙 | 四川理工学院,自贡643000 |
|
| Author | Institution |
| ZHENG Xing-wen | Sichuan University of Science & Engineering, Zigong643000, China |
| GONG Min | Sichuan University of Science & Engineering, Zigong643000, China |
| ZENG Xian-guang | Sichuan University of Science & Engineering, Zigong643000, China |
| JIANG Chun-mei | Sichuan University of Science & Engineering, Zigong643000, China |
| LU Li-juan | Sichuan University of Science & Engineering, Zigong643000, China |
| JIEKE Zi-sha | Sichuan University of Science & Engineering, Zigong643000, China |
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| 中文摘要: |
| 采用电化学方法,研究了L-苯丙氨酸对Q235钢在0.5mol/LH2SO4 溶液中的缓蚀作用及缓蚀机理,分析了其缓蚀剂类型。结果表明:L-苯丙氨酸的缓蚀效率随浓度的增加而增大,而且随着温度的升高,Q235钢表面单个活性位点上吸附的缓蚀剂分子数量增加,缓蚀效率也增大;L-苯丙氨酸属于混合抑制型缓蚀剂,作用机理为几何覆盖效应,其在Q235钢表面的吸附为单分子吸附,且吸附规律符合El-Awady动力学模型。 |
| 英文摘要: |
| The corrosion inhibition performance and inhibition mechanism of L-phenylalanine(LPHA) for Q235 steel in 0.5mol/L H2SO4 solutions were evaluated using electrochemical methods. The corrosion inhibitor type was analyzed. The results indicated that the inhibition efficiency of LPHA for Q235 steel in 0.5 mol/L H2SO4 solutions increased with increasing the concentration of LPHA,and with increasing temperature, due to the increase of the number of inhibitor molecules adsorbed on one active site,the inhibition efficiency increased; LPHA was a mixed-type inhibitor and the inhibition mechanism of which was coverage effect. The adsorption of LPHA on the surface of Q235 steel was monolayer adsorption and conformed with El-Awa dydynamic model. |
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