Novel nitrogen doped carbon dots for corrosion inhibition of carbon steel in 1 M HCl solution

被引：133
作者：
Cui, Mingjun [1 ,2 ]
Ren, Siming [1 ,2 ]
Zhao, Haichao [1 ]
Wang, Liping [1 ]
Xue, Qunji [1 ]
机构：
[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Key Lab Marine Mat & Protect Technol, Key Lab Marine Mat & Related Technol, Ningbo 315201, Zhejiang, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100039, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2018年 / 443卷
关键词：
Q235 carbon steel; NCDs; Electrochemical measurements; SVET method; Corrosion inhibition; MILD-STEEL; O-PHENYLENEDIAMINE; SCHIFF-BASE; ACID; POLY(O-PHENYLENEDIAMINE); GREEN; ADSORPTION; PROTECTION; XPS;
D O I：
10.1016/j.apsusc.2018.02.255
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Nitrogen doped carbon dots (NCDs) were synthesized and used for inhibiting the corrosion of Q235 carbon steel in hydrochloric acid (HCl) solution. Inhibition effectiveness in short-and long-term immersion was examined using electrochemical measurements, weight loss and surface analysis. Results revealed the inhibition efficiency was improved significantly after adding NCDs and strongly dependent on the concentration of NCDs. SVET results showed that the sample immersed in HCl solution with NCDs showed lower anodic current density mapping than that in blank HCl solution. According to the data extracted from the Langmuir adsorption, the absorption of NCDs involved both chemisorption and physisorption. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：145 / 156
页数：12
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