Electrochemical behaviour of superhydrophobic coating fabricated by spraying a carbon nanotube suspension

Bulletin of materials science

S Mahanty²  L Belsanti¹  H Ogihara³  G Luciano¹ 

[1] CNR-ISMAR, Istituto di Scienze Marine, Genova 16149, Italy$$CNR-ISMAR, Istituto di Scienze Marine, Genova 16149, ItalyCNR-ISMAR, Istituto di Scienze Marine, Genova 16149, Italy$$;Indian Institute of Technology Kanpur, Kanpur 208016, India$$Indian Institute of Technology Kanpur, Kanpur 208016, IndiaIndian Institute of Technology Kanpur, Kanpur 208016, India$$;Department of Chemistry and Materials Science, Tokyo Institute of Technology, Tokyo 152-8552, Japan$$Department of Chemistry and Materials Science, Tokyo Institute of Technology, Tokyo 152-8552, JapanDepartment of Chemistry and Materials Science, Tokyo Institute of Technology, Tokyo 152-8552, Japan$$

关键词: Al alloy;    surface coating;    superhydrophobicity;    potentiodynamic polarization.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

In this study, superhydrophobic films were prepared through a spraying process of carbon nanotube (CNT) suspension on aluminium alloy substrate and characterized by scanning electronic microscope (SEM) contact angles (CAs) and potentiodynamic polarization tests in 0.1 M NaCl solution. Results indicate the positive effect of superhydrophobic film on the CA ($ge 160^circ $) in comparison with the bare metal due to the high porosity density at the surface caused by the presence of CNTs. The electrochemical observations indicate the presence of a positive shift of 𝐸_corr that confers a better corrosion resistance of the coated samples.

【 授权许可】

Unknown