Inhibition effect of self-assembled films formed by gold nanoparticles on iron surface |
| |
Authors: | Hongfang Ma Guangzeng Liu Min Zhou |
| |
Affiliation: | a Department of Chemistry, Shandong University, Jinan 250100, PR China b State Key Laboratory for Corrosion and Protection, Shenyang 110015, PR China c Center of Analysis and Test, Shandong Institute of Light Industry, Jinan 250100, PR China |
| |
Abstract: | The self-assembled (SA) films formed by gold nanoparticles on iron surface had been proved to have inhibition effect for the substrate in 0.5 M H2SO4 solutions. The inhibition action was investigated using electrochemical impedance spectroscopy (EIS). The SA films formed by gold nanoparticles protected with sodium oleate had better corrosion protection to the iron substrate than only by sodium oleate. Scanning electron microscopy (SEM) was used to observe the imagines of the SA films. In addition, it was found that the gold nanoparticles could influence the nickel electroless plating films on the iron substrate. The structure and composition of the plating films were test by electron probe microanalyzer (EPMA). The mechanisms of the formation of the SA films and the nickel electroless plating reaction were also discussed. |
| |
Keywords: | Gold nanoparticles Self-assembled films Electrochemical impedance spectroscopy (EIS) Nickel electroless plating |
本文献已被 ScienceDirect 等数据库收录! |