碳钢表面银纳米粒子自组装膜的电化学行为
Electrochemical Behavior of Silver Nanoparticles Self-assembled Films on Carbon Steel Surface
摘 要
采用电解硝酸银水溶液的方法制备银纳米粒子,利用自组装技术将银纳米粒子分别组装于交联剂丙烯基硫脲(ATU)、硫脲(TU)和聚乙烯吡咯烷酮(PVP)修饰的碳钢电极表面，制得丙烯基硫脲、硫脲和聚乙烯吡咯烷酮与银纳米粒子自组装混合膜。采用电化学方法如交流阻抗谱(EIS)、极化曲线等研究该自组装膜在0.5 mol·L-1 NaCl溶液中的缓蚀作用。结果表明,碳钢表面形成的有机物/银纳米粒子自组装混合膜对碳钢有很好的缓蚀作用。其中尤以丙稀基硫脲为交联剂，银纳米粒子组装3 h的混合膜电极抗腐蚀效果最佳，缓蚀率达到94.8%。
碳钢
自组装
缓蚀
电化学行为
silver nanoparticle
carbon steel
self-assembly
corrosion inhibition
electrochemical behavior
Abstract
Ag nanoparticles were prepared by electrolyzing silver nitrate solution. Attempts were made to assemble the Ag nanoparticles on the surface of 20# carbon steel using different cross-linking agents such as acryl-thiourea(ATU), thiourea (TU) and polyvinylpyrrolidone (PVP). Electrochemical impedance spectroscopy and polarization curves were used to detect the corrosion inhibition of Ag-assembled films for the carbon steel in 0.5 mol·L-1 NaCl solution. The results showed that the Ag-assembled films with different cross-linking agents all had corrosion inhibition and the corrosion inhibition reached 94.8%, being the best when using ATU with Ag assembling for three hours.
中图分类号 TG178 O646.6
所属栏目 试验研究
基金项目 山西省高校科技项目(20121023); 忻州师范学院院级专题研究项目(ZT201224)
收稿日期 2013/8/13
修改稿日期
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备注范建凤(1965-),教授,硕士,从事电化学研究方向,
引用该论文: FAN Jian-feng,WANG Wei. Electrochemical Behavior of Silver Nanoparticles Self-assembled Films on Carbon Steel Surface[J]. Corrosion & Protection, 2014, 35(6): 553
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【2】PANIGRAHI S，PRAHARAI S，BASU S，et al. Self-assembly of silver nanoparticles: synthesis，stabilization，optical properties，and application in surface-enhanced raman scattering[J]. Phys Chem B，2006，110(27): 13436-13444.
【3】LEDO A，MARTINEZ F，LOPEZ-QUINTELA M A，et al. Synthesis of Ag clusters in microemulsions: A time-resolved UV-vis and fluorescence spectroscopy study[J]. Physica B: Condensed Matter，2007，398(2): 273-277.
【4】LEE J,HWANG S,LEE H,et al. Bimetallic clusters by underpotential deposition on layered Au nanopartiele films[J]. J Phys Chem B,2004,108:5372-5379.
【5】ZACHARY M,FRECSCO,JEAN M J,et al. Selective surface activation of a functional monolayer for the fabrication of nanometer seale thiol pattems and direeted Self-Assembly of gold nanoparticles[J]. J Am Chem Soc,2005,127:8302-8303.
【6】MA H F,CHEN S H,LIU G Z,et al. Inhibition effect of self-assembled films formed by gold nanoparticles on iron surface[J]. Applied Surface Science,2006,252(12):4327-4334.
【7】ZHANG Z,CHEN S H,REN H P,et al. Protection of iron against corrosion by coverage with Au nanoparticles and n-hexylthiol mixed films[J]. Applied Surface Science,2009,255(9):4950-4954.
【8】VOEVODIN N N，KURDZIEL J W，MANTZ R. Corrosion protection for aerospace aluminum alloys by modified self-assembled nanophase particle ( MSNAP) sol-gel[J]. Surface and Coatings Technology,2006,201:1080-1084.
【9】MIGAHED M A，AZZAM E M S，MORSY S M I. Electrochemical behaviour of carbon steel in acid chloride solution in the presence of dodecyl cysteine hydrochloride self-assembled on gold nanoparticles[J]. Corrosion Science,2009,51(8):1636-1644.
【10】LI D G，CHEN S H，ZHAO S Y,et al. The corrosion inhibition of the self-assembled Au，and Ag nanoparticles films on the surface of copper[J]. Colloids and Surfaces A:Physicochemical and Engineering Aspects,2006,273:16-23.
【11】WAN D,YUAN S J，NEOH K G，et al. Surface functionalization of copper via oxidative graft polymerization of 2,2′-bithiophene and immobilization of silver nanoparticles for combating biocorrosion[J]. ACS Applied Materials ＆ Interfaces,2010,2(6):1653-1662.
【12】张哲,贾明子,阮乐. 铁表面银纳米粒子自组装膜及其缓蚀性能研究[J]. 电化学，2012,18(1):89-93.
【13】王春涛,陈慎豪,赵世勇,等. 烯丙基硫脲和十二烷基硫醇对铜的缓蚀作用[J]. 化学学报,2003,61(2):151-155.
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