银纳米粒子增强壳聚糖对 15%HSO 环境中 St37 的缓蚀作用。
Enhanced corrosion inhibition effect of chitosan for St37 in 15% HSO environment by silver nanoparticles.
机构信息
Corrosion Research Laboratory, Department of Mechanical Engineering, Faculty of Engineering, Duzce University, 81620, Duzce, Turkey.
Corrosion Research Laboratory, Department of Mechanical Engineering, Faculty of Engineering, Duzce University, 81620, Duzce, Turkey.
出版信息
Int J Biol Macromol. 2017 Nov;104(Pt A):638-649. doi: 10.1016/j.ijbiomac.2017.06.072. Epub 2017 Jun 16.
The inhibitive performance of chitosan and silver nanoparticles - chitosan (AgNPs-Chi) composite towards St37 steel corrosion in 15% HSO solution was studied using weight loss and electrochemical techniques in addition to surface morphological examination. Results obtained show that chitosan could fairly protect St37 steel surface by 45%. Inhibition efficiency above 94% has been achieved with AgNPs-Chi composite. AgNPs-Chi composite performs better at longer immersion time and elevated temperature. AgNPs-Chi retards both anodic and cathodic redox reactions. The mode of adsorption of AgNPs-Chi onto St37 surface has been described using Langmuir adsorption isotherm. Surface screening results ascertain the adsorption of AgNPs-Chi molecules on St37 surface.
采用失重法和电化学技术并结合表面形貌观察研究了壳聚糖和银纳米粒子-壳聚糖（AgNPs-Chi）复合材料在 15% HSO 溶液中对 St37 钢腐蚀的抑制性能。结果表明，壳聚糖对 St37 钢表面的保护作用相当大，可达 45%。AgNPs-Chi 复合材料的缓蚀效率超过 94%。AgNPs-Chi 复合材料在更长的浸泡时间和更高的温度下表现更好。AgNPs-Chi 减缓了阳极和阴极的氧化还原反应。AgNPs-Chi 在 St37 表面的吸附模式采用 Langmuir 吸附等温线进行了描述。表面筛选结果证实了 AgNPs-Chi 分子在 St37 表面的吸附。
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