Corrosion mechanism of copper in palm biodiesel

Fazal, M.A. and Haseeb, A.S. Md. Abdul and Masjuki, Haji Hassan (2013) Corrosion mechanism of copper in palm biodiesel. Corrosion Science, 67. pp. 50-59. ISSN 0010-938X, DOI https://doi.org/10.1016/j.corsci.2012.10.006.

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Abstract

Biodiesel is a promising alternative fuel. However, it causes enhanced corrosion of automotive materials, especially of copper based components. In the present study, corrosion mechanism of copper was investigated by scanning electron microscope (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Compositional change of biodiesel due to the exposure of copper was also investigated. Corrosion patina on copper is found to be composed of Cu2O, CuO, Cu(OH)2 and CuCO3. Dissolved O2, H2O, CO2 and RCOO− radical in biodiesel seem to be the leading factors in enhancing the corrosiveness of biodiesel.

Item Type: Article
Funders: UNSPECIFIED
Uncontrolled Keywords: A. Copper; B. SEM; B. XRD; B. XPS; C. Pitting corrosion
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 09 Jan 2015 02:42
Last Modified: 17 Oct 2018 00:46
URI: http://eprints.um.edu.my/id/eprint/11763

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