The Performance of Nanosilicate from Rice Husk Ash as Green Corrosion Inhibitor for Carbon Steel in 0.5M HCl

Abstract:

Nanosilica powder produced from rice husk ash (RHA) via NaOH treatment has particle size in the range of 10-20 nm as revealed by transmission electron microscopy (TEM). The inhibitive action of nanosilicate from RHA on the corrosion of carbon steel SAE1045 in 0.5M HCl solution was studied using weight loss and potentio dynamic polarization methods. Result shows that the inhibition efficiency was increased with increasing of the inhibitor concentration. Nanosilicate was tremendously effective on carbon steel; exhibiting high inhibition efficiency attained 99%at optimum concentration of 175 ppm. Pitting was not observed on surface of carbon steel when the inhibitor was present. This finding was confirmed from surface morphology by scanning electron microscopy (SEM).

• Periodical: Materials Science Forum (Volume 756)
• Pages: 266-272
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.756.266
• Online since: May 2013
• Authors: Denni Asra Awizar, Norinsan Kamil Othman, Abdul Razak Daud, Azman Jalar, Rabiahtul Zulkafli
• Keywords: Corrosion Inhibitor, Nano Silicate, Rice Husk Ash, TEM

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