竹叶提取物对LST12钢在NH4Cl溶液中的缓蚀作用
Corrosion Inhibition of Bamboo Leaf Extract for Steel in NH4Cl Solution
摘 要
用失重法、动电位极化曲线和电化学阻抗谱(EIS)研究了竹叶提取物(DLMLE)在0.5 mol/L NH4Cl溶液中对冷轧钢的缓蚀作用。结果表明: DLMLE在NH4Cl溶液中对冷轧钢具有良好的缓蚀作用, 缓蚀率随缓蚀剂质量浓度的增加而增大, 最大缓蚀率可达85.9%；DLMLE在冷轧钢表面的吸附符合Langmuir吸附等温式, 吸附过程为物理吸附和化学吸附的混合吸附过程；DLMLE为混合抑制型缓蚀剂, EIS谱呈单一压扁的半圆容抗弧, 电荷转移电阻随缓蚀剂质量浓度的增加而增大。
NH4Cl
缓蚀
竹叶提取物
吸附
cold rolled steel
NH4Cl
inhibition
bamboo leaf extract
adsorption
Abstract
The inhibition effect of dendrocalmus latifcorus munro leaf extract (DLMLE) on the corrosion of cold rolled steel (CRS) in 0.5 mol/L NH4Cl solution was studied by weight loss method, potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS). The results show that DLMLE was a good inhibitor for CRS in 0.5 mol/L NH4Cl solution, and inhibition efficiency increased with the concentration of inhibitor, and the maximum inhibition efficiency was 85.9%. The adsorption of DLMLE on steel surface obeyed Langmuir adsorption isotherm, and was a mixed process of physical adsorption and chemical adsorption. DLMLE acted as a mixed-type inhibitor. The EIS spectra exhibited one depressed capacitive loop and the charge transfer resistance value increased with the inhibitor concentration.
中图分类号 TG174.42 DOI 10.11973/fsyfh-201606003
所属栏目 试验研究
基金项目 国家自然科学基金项目(51161023)
收稿日期 2015/5/10
修改稿日期
网络出版日期
作者单位点击查看
备注李向红(1981-), 副教授, 博士, 从事缓蚀剂研究,
引用该论文: LI Xiang-hong,DENG Shu-duan,LIU Jian-xiang,LI Nan. Corrosion Inhibition of Bamboo Leaf Extract for Steel in NH4Cl Solution[J]. Corrosion & Protection, 2016, 37(6): 449
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】RAJIA P B, SETHURAMAN M G. Natural products as corrosion inhibitor for metals in corrosive media-a review[J]. Materials Letters, 2008, 62: 113-116.
【2】SOLTANI N, TAVAKKOLI N, KHAYATKASHANI M, et al. Green approach to corrosion inhibition of 304 stainless steel in hydrochloric acid solution by the extract of salvia officinalis leaves[J]. Corrosion Science, 2012, 62: 122-135.
【3】RAJA P B, QURESHI A K, RAHIM A A, et al. Neolamarckia cadamba alkaloids as eco-friendly corrosion inhibitors for mild steel in 1 M HCl media[J]. Corrosion Science, 2013, 69: 292-301.
【4】付惠, 李向红, 肖旭萍. 麻竹竹叶提取物在酸性介质中对冷轧钢的缓蚀作用[J]. 腐蚀与防护, 2009, 30(8): 548-550.
【5】LI X H, DENG S D, FU H. Inhibition of the corrosion of steel in HCl, H2SO4 solutions by bamboo leaf extract[J]. Corrosion Science, 2012, 62: 163-175.
【6】白玮, 李蕾, 李向红, 等. 柠檬酸、硝酸铵溶液中冷轧钢的腐蚀行为[J]. 云南大学学报(自然科学版), 2006, 28 (4): 345-349.
【7】岳永德, 操海群, 汤锋. 竹提取物的化学成分及其利用研究进展[J]. 安徽农业大学学报, 2007, 34 (3): 328-333.
【8】张艳玲, 韩磊, 刘小辉. 几种钢材在NH4Cl环境中的腐蚀行为[J]. 腐蚀与防护, 2014, 35(7): 711-714.
【9】曹楚南. 腐蚀电化学原理[M]. 2版. 北京: 化学工业出版社, 2004: 235-238.
【10】PRIYE A R S, MURALIDHARAM V S, SUBRAMANIA A. Development of novel acidizing inhibitors for carbon steel corrosion in 15% boiling hydrochloric acid[J]. Corrosion, 2008, 64: 541-552.
【2】SOLTANI N, TAVAKKOLI N, KHAYATKASHANI M, et al. Green approach to corrosion inhibition of 304 stainless steel in hydrochloric acid solution by the extract of salvia officinalis leaves[J]. Corrosion Science, 2012, 62: 122-135.
【3】RAJA P B, QURESHI A K, RAHIM A A, et al. Neolamarckia cadamba alkaloids as eco-friendly corrosion inhibitors for mild steel in 1 M HCl media[J]. Corrosion Science, 2013, 69: 292-301.
【4】付惠, 李向红, 肖旭萍. 麻竹竹叶提取物在酸性介质中对冷轧钢的缓蚀作用[J]. 腐蚀与防护, 2009, 30(8): 548-550.
【5】LI X H, DENG S D, FU H. Inhibition of the corrosion of steel in HCl, H2SO4 solutions by bamboo leaf extract[J]. Corrosion Science, 2012, 62: 163-175.
【6】白玮, 李蕾, 李向红, 等. 柠檬酸、硝酸铵溶液中冷轧钢的腐蚀行为[J]. 云南大学学报(自然科学版), 2006, 28 (4): 345-349.
【7】岳永德, 操海群, 汤锋. 竹提取物的化学成分及其利用研究进展[J]. 安徽农业大学学报, 2007, 34 (3): 328-333.
【8】张艳玲, 韩磊, 刘小辉. 几种钢材在NH4Cl环境中的腐蚀行为[J]. 腐蚀与防护, 2014, 35(7): 711-714.
【9】曹楚南. 腐蚀电化学原理[M]. 2版. 北京: 化学工业出版社, 2004: 235-238.
【10】PRIYE A R S, MURALIDHARAM V S, SUBRAMANIA A. Development of novel acidizing inhibitors for carbon steel corrosion in 15% boiling hydrochloric acid[J]. Corrosion, 2008, 64: 541-552.
相关信息
