Effective Corrosion Inhibition of Carbon Steel in Hydrochloric Acid by Dopamine-Produced Carbon Dots
文献类型：期刊论文
| 作者 | Cui, Mingjun; Yu, Yue; Zheng, Yuxuan |
| 刊名 | POLYMERS
 |
| 出版日期 | 2021 |
| 卷号 | 13期号:12 |
| 关键词 | MILD-STEEL EXTRACT GREEN COPPER SURFACTANTS DERIVATIVES DRUGS |
| 英文摘要 | In present study, novel nitrogen doped carbon dots (NCDs) are synthesized using a green material-dopamine-as a precursor and studied as corrosion inhibitors for Q235 carbon steel in 1 M HCl solution. According to the electrochemical results, it is found that NCDs acting as a mixed-type corrosion inhibitor can effectively retard the acid corrosion of carbon steel, and their inhibition efficiency increases with the concentration increasing from 50 to 400 ppm. The highest inhibition efficiency is 96.1% in the presence of 400 ppm NCDs at room temperature. Additionally, the adsorption of NCDs obeys the Langmuir adsorption isotherm. In addition, weight loss results show that the inhibition efficiency in the presence of 400 ppm NCDs increases with prolonged exposure time and rising temperature (298-328 K), owing to the strong adsorption of NCDs on the steel surface, and the eta value is 92.2% at 60 h of immersion and 86.2%, 89.1%, 90.6% and 92.9% at 298, 308, 318 and 328 K, respectively. Surface analysis by scanning electron microscope (SEM), laser scanning confocal microscope (LSCM) and X-ray photoelectron spectroscopy (XPS) further proves the formation of a protective NCD film on the steel surface. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21861]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | Zheng, YX (corresponding author), Ningbo Univ, Sch Mech Engn & Mech, Key Lab Impact & Safety Engn, Minist Educ, Ningbo 315211, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Cui, Mingjun,Yu, Yue,Zheng, Yuxuan. Effective Corrosion Inhibition of Carbon Steel in Hydrochloric Acid by Dopamine-Produced Carbon Dots[J]. POLYMERS,2021,13(12). |
| APA | Cui, Mingjun,Yu, Yue,&Zheng, Yuxuan.(2021).Effective Corrosion Inhibition of Carbon Steel in Hydrochloric Acid by Dopamine-Produced Carbon Dots.POLYMERS,13(12). |
| MLA | Cui, Mingjun,et al."Effective Corrosion Inhibition of Carbon Steel in Hydrochloric Acid by Dopamine-Produced Carbon Dots".POLYMERS 13.12(2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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