蛋氨酸及脯氨酸对304不锈钢的缓蚀性能
Corrosion Inhibition of Methionine and Proline to 304 Stainless Steel
摘 要
采用电化学测试、扫描电镜观察研究了蛋氨酸和脯氨酸对304不锈钢在共晶盐相变蓄冷材料（PCMs）溶液中的缓蚀性能；并通过量子化学计算和分子动力学模拟从理论方面进一步研究了缓蚀剂的缓蚀机理。结果表明：蛋氨酸、脯氨酸以及蛋氨酸/脯氨酸复配缓蚀剂均能减缓304不锈钢在PCMs溶液中的腐蚀，其中蛋氨酸/脯氨酸复配缓蚀剂的缓蚀效果最好；三种缓蚀剂均为混合型缓蚀剂；蛋氨酸和脯氨酸分子均存在活性位点可以与铁表面发生吸附，在PCMs溶液中抑制金属腐蚀。
缓蚀剂
量子化学计算
分子动力学模拟
304 stainless steel
corrosion inhibitor
quantum chemical calculation
molecular dynamics simulation
Abstract
The corrosion inhibition of methionine and proline to 304 stainless steel in phase change materials (PCMs) solution was studied by electrochemical testing and scanning electron microscopy (SEM) observation. The corrosion inhibition mechanism was further studied theoretically by quantum chemical calculation and molecular dynamics simulation. The results show that the inhibitors of methionine, proline and methionine/proline compound could protect 304 stainless steel from corrosion in PCMs solution. The methionine/proline compound inhibitor had the highest inhibition efficiency. All three corrosion inhibitors were mixed corrosion inhibitors. Both methionine and proline molecules, which had active sites and thus could adsorb on the surface of iron, could effectively inhibit metal corrosion in PCMs solution.
中图分类号 TG174.42 DOI 10.11973/fsyfh-201908008
所属栏目 试验研究
基金项目 广西自然科学基金（2016GXNSFAA380061）
收稿日期 2018/2/2
修改稿日期
网络出版日期
作者单位点击查看
引用该论文: ZHANG Zhe,ZHANG Weipeng,LI Wenwu,RUAN Le,HUANG Xiaodong. Corrosion Inhibition of Methionine and Proline to 304 Stainless Steel[J]. Corrosion & Protection, 2019, 40(8): 589
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【4】SHARMA A, TYAGI V V, CHEN C R, et al. Review on thermal energy storage with phase change materials and applications. Renewable and Sustainable Energy Reviews, 2009, 13(2):318-345.
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【6】GUILLOT S, FAIK A, RAKHMATULLIN A, et al. Corrosion effects between molten salts and thermal storage material for concentrated solar power plants. Applied Energy, 2012, 94:174-181.
【7】BOBINA M, KELLENBERGER A, MILLET J P, et al. Corrosion resistance of carbon steel in weak acid solutions in the presence of l-histidine as corrosion inhibitor. Corrosion Science, 2013, 69:389-395.
【8】ZHENG X W. Inhibitive effect of L-lysine on the corrosion of mild steel in acidic solutions. International Journal of Electrochemical Science, 2017:5553-5566.
【9】ZHANG Z, TIAN N C, ZHANG W N, et al. Inhibition of carbon steel corrosion in phase-change-materials solution by methionine and proline. Corrosion Science, 2016, 111:675-689.
【10】SOLTANI N, TAVAKKOLI N, KHAYAT KASHANI M, et al. Silybum marianum extract as a natural source inhibitor for 304 stainless steel corrosion in 1.0 M HCl. Journal of Industrial and Engineering Chemistry, 2014, 20(5):3217-3227.
【11】XU B, YANG W Z, LIU Y, et al. Experimental and theoretical evaluation of two pyridinecarboxaldehyde thiosemicarbazone compounds as corrosion inhibitors for mild steel in hydrochloric acid solution. Corrosion Science, 2014, 78:260-268.
【12】PAVITHRA M K, VENKATESHA T V, PUNITH KUMAR M K, et al. Inhibition of mild steel corrosion by Rabeprazole sulfide. Corrosion Science, 2012, 60:104-111.
【13】FINŠGAR M. 2-Mercaptobenzimidazole as a copper corrosion inhibitor:Part Ⅰ. Long-term immersion, 3D-profilometry, and electrochemistry. Corrosion Science, 2013, 72:82-89.
【14】EL BRIBRI A, TABYAOUI M, TABYAOUI B, et al. The use of Euphorbia falcata extract as eco-friendly corrosion inhibitor of carbon steel in hydrochloric acid solution. Materials Chemistry and Physics, 2013, 141(1):240-247.
【15】ABU-DALO M A, AL-RAWASHDEH N A F, ABABNEH A. Evaluating the performance of sulfonated Kraft lignin agent as corrosion inhibitor for iron-based materials in water distribution systems. Desalination, 2013, 313:105-114.
【16】HERRAG L, HAMMOUTI B, ELKADIRI S, et al. Adsorption properties and inhibition of mild steel corrosion in hydrochloric solution by some newly synthesized diamine derivatives:Experimental and theoretical investigations. Corrosion Science, 2010, 52(9):3042-3051.
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