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Effect of Nitrogen Doping on Corrosion Inhibition Performance of Carbon Nanoparticles |
WANG Jing, WANG Siyan, ZHANG Chong, WANG Wentao, CAO Xing, FAN Ning, XU Hongyan() |
School of Materials Science and Engineering, North University of China, Taiyuan 030051, China |
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Abstract Nitrogen-free carbon nanoparticles (CNPs) were prepared by thermal decomposition method with citric acid as carbon source. While nitrogen-doped carbon nanoparticles (N-CNPs) were prepared by thermal decomposition method with citric acid as carbon source and urea as nitrogen source. The above nano-particles were characterized by means of atomic force microscope, infrared spectroscope and Raman spectroscope, and their corrosion inhibition performance for Q235 steel in 1 mol/L HCl solution was comparatively studied by mass loss method, electrochemical means and laser confocal scanning microscope. The results showed that the two carbon nanoparticles belonged to mixed-type corrosion inhibitors, the corrosion inhibition efficiency of N-free carbon nanoparticles was 37.5%, and the corrosion inhibition efficiency of the carbon nanoparticles was significantly improved after being doped with N. The corrosion inhibition efficiency of N-CNPs reached 90.96%.
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Received: 04 January 2021
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Fund: Natural Science Foundation of Shanxi Province(201901D111175) |
Corresponding Authors:
XU Hongyan
E-mail: xuhongyan@nuc.edu.cn
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About author: XU Hongyan, E-mail: xuhongyan@nuc.edu.cn
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