文献类型：期刊文献

英文题名：SECM/SKP and SVET studies on mitigation of N80 steel corrosion by some polymers

作者：Feng, Hongwei[1];Singh, Ambrish[2,3];Wu, Yuanpeng[2,3];Lin, Yuanhua[2,3]

第一作者：冯红卫

通讯作者：Singh, A[1];Lin, YH[1];Singh, A[2];Lin, YH[2]

机构：[1]Xinxiang Univ, Sch Civil Engn & Architecture, Xinxiang 453000, Henan, Peoples R China;[2]Southwest Petr Univ, Sch Mat Sci & Engn, Chengdu 610500, Sichuan, Peoples R China;[3]Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Sichuan, Peoples R China

第一机构：新乡学院土木工程与建筑学院

通讯机构：[1]corresponding author), Southwest Petr Univ, Sch Mat Sci & Engn, Chengdu 610500, Sichuan, Peoples R China;[2]corresponding author), Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Sichuan, Peoples R China.

年份：2018

卷号：42

期号：14

起止页码：11404-11416

外文期刊名：NEW JOURNAL OF CHEMISTRY

收录：;Scopus(收录号：2-s2.0-85049732689);WOS:【SCI-EXPANDED(收录号:WOS:000438394800024)】；

基金：Authors are thankful to the Sichuan 1000 Talent Fund and financial assistance provided by the National Natural Science Foundation of China (No. 51274170).

语种：英文

摘要：Three polymers, namely PAMPS (P1), P(AMPS-co-NVP) (P2) and P(AMPS-co-DMC) (P3), synthesized by common solution polymerization (CSP) were investigated as corrosion inhibitors for N80 steel in 3.5 wt% NaCl flooded with CO2 by high temperature high pressure (HPHT) weight loss, electrochemical methods (EIS, Tafel), scanning electrochemical microscopy (SECM), scanning Kelvin probe (SKP), scanning vibrating electrode (SVET) techniques, and surface studies (UV-Visible, SEM). The P1 inhibitor exhibited the best inhibition efficiency among the polymers at 500 ppm concentration. The adsorption of the polymer derivatives obeyed the Langmuir isotherm. SECM measurements revealed a difference in the current on the steel surface with and without polymers. SKP and SVET showed the potential difference between the cathodic and anodic regions of the metal surface with and without inhibitors.