聂金艳,司云森,余强,王招娣.酸性介质中N,N-二苯基硫脲和硫脲对A3钢的缓蚀作用对比研究[J].表面技术,2010,39(1):51-55.
NIE Jin-yan,SI Yun-sen,YU Qiang,WANG Zhao-di.Contrast Study on the Inhibitive Effect of N,N-diphenyl Thiourea and Thiourea on the Corrosion of A3 Steel in Acid Medium[J].Surface Technology,2010,39(1):51-55 |
| 酸性介质中N,N-二苯基硫脲和硫脲对A3钢的缓蚀作用对比研究 |
| Contrast Study on the Inhibitive Effect of N,N-diphenyl Thiourea and Thiourea on the Corrosion of A3 Steel in Acid Medium |
| 投稿时间：2009-09-01 修订日期：2010-02-10 |
| DOI： |
| 中文关键词: A3钢 N,N-二苯基硫脲 硫酸介质 缓蚀作用 |
| 英文关键词:A3 steel N,N-diphenyl thiourea Sulphuric acid Inhibitive effect |
| 基金项目: |
| 作者 | 单位 |
| 聂金艳 | 昆明理工大学,昆明650093 |
| 司云森 | 昆明理工大学,昆明650093 |
| 余强 | 昆明理工大学,昆明650093 |
| 王招娣 | 昆明理工大学,昆明650093 |
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| Author | Institution |
| NIE Jin-yan | Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093, China |
| SI Yun-sen | Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093, China |
| YU Qiang | Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093, China |
| WANG Zhao-di | Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093, China |
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| 中文摘要: |
| 采用动电位扫描极化曲线、交流阻抗法和量子化学法,研究了N,N-二苯基硫脲(DPH-TU)在5%H2SO4介质中对A3钢的缓蚀作用及缓蚀机理,计算出了相应吸附过程的热力学数据,并与硫脲进行了对比。研究表明:N,N-二苯基硫脲是一种缓蚀效果显著的混合型缓蚀剂,它在A3钢表面发生化学吸附,吸附过程为放热过程,吸附行为服从El-Awady动力学模型,其缓蚀效果明显优于硫脲。 |
| 英文摘要: |
| The inhibitive behavior and mechanism of N,N-diphenyl thiourea(DPH-TU)on the corrosion of A3 steel in 5%H2SO4medium were studied using polarizationcurves measurements, electrochemical impedance spectroscopy (EIS)and quantum chemistry methodsin order to investigate the inhibitive effect of DPH-TUin H2SO4solution and providing important theoretical reference to the actual production as corrosion inhibitor. The results show that DPH-TU is an effective and mixing type inhibitor. It is suggested that the adsorption of DPH-TU on A3 mild steel be chemosorption and exothermic reaction. The corresponding thermodynamic parameters of the adsorption process forDPH-TUare calculated according to the El-Awady kinetic model.Compared with the thiourea, the inhibition effect of DPH-TUis superior to thiourea. |
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