Regulating π-π interactions in carbon dots via N-doping & ionic liquid modification for enhanced efficiency in 1 M HCl

被引：0

作者：

Li, Fengting ^{[1
]}

Qu, Wentao ^{[1
]}

Peng, Yunchao ^{[1
,2
]}

Yang, Liqiang ^{[3
]}

Wang, Li ^{[4
]}

Su, Huiling ^{[1
]}

Li, Miantuo ^{[1
]}

Wang, Zhikun ^{[1
]}

Wang, Jingyue ^{[1
]}

Fu, Yu ^{[1
]}

Hu, Songqing ^{[1
]}

机构：

[1] China Univ Petr East China, Sch Mat Sci & Engn, Qingdao 266580, Peoples R China

[2] PipeChina Network Corp Eastern Oil Storage & Trans, Xuzhou 221008, Peoples R China

[3] China Natl Petr Corp, Beijing 100007, Peoples R China

[4] Huabei Oilfield Co, Explorat & Dev Res Inst, Hebei 062552, Peoples R China

来源：

CORROSION SCIENCE | 2025年 / 248卷

基金：

中国国家自然科学基金;

关键词：

Acidizing inhibitor; Carbon dots; Long-term inhibition; pi-pi interactions; Electrophilic nucleophilic activity; CORROSION-INHIBITOR; NITROGEN; STEEL; GREEN; ACID;

D O I：

10.1016/j.corsci.2025.112798

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, we developed ionic liquid-modified nitrogen-doped carbon dots (IL-NCDs) with enhanced pi-pi interactions, effectively addressing the aggregation issue of conventional carbon dots in strong acidic conditions. The synthesized IL-NCDs demonstrated superior dispersibility and long-term protective performance in 1 M HCl, achieving a corrosion inhibition efficiency of 97.34 % at 60 mg/L and maintaining protection for over 20 days. The optimized surface charge and increased active sites facilitated the formation of a dense protective film, offering an efficient and eco-friendly solution for metal corrosion protection in acidic environments, with significant potential for industrial applications.

引用

页数：13

共 45 条

[1] Galai M., Rbaa M., Ouakki M., Et al., Functionalization effect on the corrosion inhibition of novel eco-friendly compounds based on 8-hydroxyquinoline derivatives: experimental, theoretical and surface treatment, Chem. Phys. Lett., 776, (2021)
[2] Tazouti A., Errahmany N., Rbaa M., Et al., Effect of hydrocarbon chain length for acid corrosion inhibition of mild steel by three 8-(n-bromo-R-alkoxy) quinoline derivatives: experimental and theoretical investigations, J. Mol. Struct., 1244, (2021)
[3] Ech-chebab A., Dahmani K., Hsissou R., Et al., Anticorrosion properties of the epoxy polymer TGETBAU for mild steel in a solution of HCl (1.0 M): experimental and computational approaches, J. Mol. Struct., 1284, (2023)
[4] Dahmani K., Galai M., Ech-Chebab A., Et al., Investigating the inhibitory properties of cupressus sempervirens extract against copper corrosion in 0.5 M H<sub>2</sub>SO<sub>4</sub>: combining quantum (density functional theory calculation-monte carlo simulation) and electrochemical-surface studies, ACS Omega, 8, 27, pp. 24218-24232, (2023)
[5] Zhen D., Zhang S., Zhang X., Et al., Natural chitosan-based carbon dots as an eco-friendly and effective corrosion inhibitor for mild steel in HCl solution, Int. J. Biol. Macromol., 253, (2023)
[6] Long W.J., Li X.Q., Zheng S.Y., Et al., A novel effective carbon dots-based inhibitor for carbon steel against chloride corrosion: from inhibition behavior to mechanism, Carbon, 218, (2024)
[7] He H., Shuang E., Ai L., Et al., Exploiting machine learning for controlled synthesis of carbon dots-based corrosion inhibitors, J. Clean. Prod., 419, (2023)
[8] Paiva V.M., De Oliveira S.M., de Almeida C.M.S., Et al., Pumpkin (Cucurbita maxima) seed-derived nitrogen, phosphorus, and sulfur carbon quantum dot as an inhibitor of corrosion for mild steel in HCl solution, J. Mater. Res. Technol., 28, pp. 2504-2515, (2024)
[9] Xu Z., Gan Y., Zeng J., Et al., Green synthesis of functionalized fluorescent carbon dots from biomass and their corrosion inhibition mechanism for copper in sulfuric acid environment, Chem. Eng. J., 470, (2023)
[10] Guo C., Lian Y., Huang C., Et al., pH-responsive capsule loaded with nitrogen-doped carbon dots for metal corrosion protection, J. Mater. Res. Technol., 25, pp. 2306-2323, (2023)

← 1 2 3 4 5 →