茄叶提取液在盐酸介质中对碳钢的缓蚀性能
Corrosion Inhibition of Eggplant Leaf Extract for Carbon Steel in Hydrochloric Acid Medium
摘 要
通过动电位极化曲线法、电化学阻抗法、失重法和扫描电镜法研究了茄叶提取液在1 mol·L-1 HCl中对碳钢的缓蚀性能和机理。结果表明:茄叶提取液的最佳提取条件为盐酸浓度3.0 mol·L-1、温度55.0 ℃、时间62 h；在最佳条件下提取的茄叶提取液缓蚀性能优异，当茄叶提取液质量浓度为1 800 mg·L-1时，失重缓蚀率达92%以上；茄叶提取液在碳钢表面的吸附符合Langmuir吸附等温模型,茄叶缓蚀剂可显著抑制碳钢的腐蚀。
碳钢
HCl
缓蚀
eggplant leaf
carbon steel
HCl
corrosion inhibition
Abstract
The corrosion inhibition and inhibition mechanism of eggplant leaf extract for carbon steel in 1 mol·L-1 HCl solution were studied by potentiodynamic polarization curves, electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM) and weight loss testing. The experimental results reveal that the optimum extraction conditions of the eggplant leaf extract were as follows: hydrochloric acid concentration 3 mol·L-1, temperature 55 ℃ and required time 62 h. Based on the optimum extraction conditions, the eggplant leaf extract shows good corrosion inhibition. The inhibition efficiency of weight loss was above 92% when the mass concentration of eggplant leaf extract was only 1 800 mg·L-1. The adsorption of the eggplant leaf extract on carbon steel surface obeys the Langmuir adsorption isotherm. The corrosion of carbon steel could be significantly reduced in the presence of eggplant leaf extract.
中图分类号 TG174.42 DOI 10.11973/fsyfh-201602007
所属栏目 试验研究
基金项目 材料腐蚀与防护四川省重点实验室开放基金资助项目(2011CL13)
收稿日期 2015/1/29
修改稿日期
网络出版日期
作者单位点击查看
联系人作者谯康全(hxsqiao@163.com)
备注谯康全(1976-),高级实验师,硕士,从事电化学相关工作,
引用该论文: XIANG Yun-gang,QIAO Kang-quan,CUI Yi-shun. Corrosion Inhibition of Eggplant Leaf Extract for Carbon Steel in Hydrochloric Acid Medium[J]. Corrosion & Protection, 2016, 37(2): 122
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】许斌,刘瑛,伊晓爽,等. 盐酸介质中异烟醛缩氨基硫脲对Q235钢缓蚀性能的研究[J]. 腐蚀科学与防护技术，2013,25(4):303-307.
【2】张天胜. 缓蚀剂[M]. 北京:化工出版社,2002.
【3】汤兵,陈欣义. 酸洗过程中的缓蚀剂[J]. 清洗世界,2006,22(2):22-28.
【4】RAJA P B,SCTHURAMAN M G. Natural products as corrosion inhibitor for metals in corrosive media a review[J]. Materials Letters,2008,15(1):113-116.
【5】LEBRINI M,ROBERT F,ROOS C. Inhibition effect of alkaloids extract from annona squamosa plant on the corrosion of C38 steel in normal hydrochloric acid medium[J]. Int J Electrochem Sci,2010,5:1698-1712.
【6】OKAFOR P C,LKPI M E,UWAH I E,et al. Inhibitory action of phyllanthus amarus extracts on the corrosion of mild steel in acidic media[J]. Corros Sci,2008,50:2310-2317.刘建平，李倩倩，王淑怡，等. 山核桃蒲壳中糠醛的响应面法优化提取及其缓蚀性能[J]. 腐蚀与防护,2013,34(9):790-795.
【7】胡思行,和鹏竹,周晓荣. 橘子皮提取物对热轧碳钢在HCl溶液中的缓蚀作用研究[J]. 表面技术,2012,41(6):30-32.
【8】孙晶，顾宇凡，李曼曼，等. 茄的化学成分及药理作用研究进展[J]. 中草药，2013,44(18):2615-2622.
【9】YAN Y,LI W H,CAI L K,et al. Electrochemical and quantum chemical study of purines as corrosion inhibitors for mild steel in 1 M HCl solution[J]. Electrochemical Acta,2008,53(7): 5953-5960.
【10】祁景玉. 现代分析测试技术[M]. 上海: 同济大学出版社,2006: 326-337.
【11】曹楚南. 腐蚀电化学原理[M]. 北京: 化学工业出版社,2008.
【12】KISSI M,BOUKLAH M,HAMMOUTI B,et al. Establishment of equivalent circuits from electrochemical impedance spectroscopy study of corrosion inhibition of steel by pyrazine in sulphuric acidic solution[J]. Applied Surface Science,2006,52(12):4190-4197.
【13】KHALED K F. The inhibition of benzimidazole derivatives on corrosion of iron in 1 mol/L HCl solutions[J]. Electrochemical Acta,2003,48(17):2493-2499.
【14】蔡述兰,谯康全,任德虎,等. 4-氨基安替比林在盐酸溶液中对碳钢的缓蚀行为[J]. 腐蚀与防护,2013,34(7):576-579.
【15】郑兴文，龚敏，曾宪光，等. 樟树叶提取液在硫酸介质中对碳钢的缓蚀作用[J]. 腐蚀科学与防护技术，2012,24(1):41-45.
【16】NOOR E A. Potential of aqueous extract of hibiscus sabdariffa leaves for inhibiting the corrosion of aluminum in alkaline solutions[J]. Journal of Applied Electrochemistry,2009,39(9):1465-1475.
【2】张天胜. 缓蚀剂[M]. 北京:化工出版社,2002.
【3】汤兵,陈欣义. 酸洗过程中的缓蚀剂[J]. 清洗世界,2006,22(2):22-28.
【4】RAJA P B,SCTHURAMAN M G. Natural products as corrosion inhibitor for metals in corrosive media a review[J]. Materials Letters,2008,15(1):113-116.
【5】LEBRINI M,ROBERT F,ROOS C. Inhibition effect of alkaloids extract from annona squamosa plant on the corrosion of C38 steel in normal hydrochloric acid medium[J]. Int J Electrochem Sci,2010,5:1698-1712.
【6】OKAFOR P C,LKPI M E,UWAH I E,et al. Inhibitory action of phyllanthus amarus extracts on the corrosion of mild steel in acidic media[J]. Corros Sci,2008,50:2310-2317.刘建平，李倩倩，王淑怡，等. 山核桃蒲壳中糠醛的响应面法优化提取及其缓蚀性能[J]. 腐蚀与防护,2013,34(9):790-795.
【7】胡思行,和鹏竹,周晓荣. 橘子皮提取物对热轧碳钢在HCl溶液中的缓蚀作用研究[J]. 表面技术,2012,41(6):30-32.
【8】孙晶，顾宇凡，李曼曼，等. 茄的化学成分及药理作用研究进展[J]. 中草药，2013,44(18):2615-2622.
【9】YAN Y,LI W H,CAI L K,et al. Electrochemical and quantum chemical study of purines as corrosion inhibitors for mild steel in 1 M HCl solution[J]. Electrochemical Acta,2008,53(7): 5953-5960.
【10】祁景玉. 现代分析测试技术[M]. 上海: 同济大学出版社,2006: 326-337.
【11】曹楚南. 腐蚀电化学原理[M]. 北京: 化学工业出版社,2008.
【12】KISSI M,BOUKLAH M,HAMMOUTI B,et al. Establishment of equivalent circuits from electrochemical impedance spectroscopy study of corrosion inhibition of steel by pyrazine in sulphuric acidic solution[J]. Applied Surface Science,2006,52(12):4190-4197.
【13】KHALED K F. The inhibition of benzimidazole derivatives on corrosion of iron in 1 mol/L HCl solutions[J]. Electrochemical Acta,2003,48(17):2493-2499.
【14】蔡述兰,谯康全,任德虎,等. 4-氨基安替比林在盐酸溶液中对碳钢的缓蚀行为[J]. 腐蚀与防护,2013,34(7):576-579.
【15】郑兴文，龚敏，曾宪光，等. 樟树叶提取液在硫酸介质中对碳钢的缓蚀作用[J]. 腐蚀科学与防护技术，2012,24(1):41-45.
【16】NOOR E A. Potential of aqueous extract of hibiscus sabdariffa leaves for inhibiting the corrosion of aluminum in alkaline solutions[J]. Journal of Applied Electrochemistry,2009,39(9):1465-1475.
相关信息
