Protecting zinc using cerium based mixed oxides

S. Thomas; M.S. Venkatraman; N. Birbilis; I.S. Cole

Protecting zinc using cerium based mixed oxides

S. Thomas, M.S. Venkatraman, N. Birbilis, I.S. Cole

Materials Science & Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

Abstract

Zinc oxides can support the oxygen reduction reaction at high rates, hence surface oxides formed over zinc provide ineffective protection against corrosion once corrosion has commenced. A solution to this issue is to form a mixed layer of oxides over zinc. In line with approach, mixed oxides have been systematically developed using zinc and cerium oxides and then tested using potentiodynamic polarisation. The work addresses some of existing issues with respect to using cerium inhibition systems, namely the extent of immersion and presence of an optimum cerium concentration for maximum inhibition. It also outlines some of the problems that need to be modelled to design a corrosion resistant mixed oxide. It is evident that the presence of ZnO nuclei over zinc surface favours the growth of well-defined, dense cerium oxides. This particular aspect needs to be subject to further study in designing corrosion resistant zinc based mixed oxides.

Original language	English
Title of host publication	18th International Corrosion Congress 2011
Subtitle of host publication	20-24 November 2011; Perth, Australia
Publisher	Australasian Corrosion Association (ACA)
Pages	1365-1375
Number of pages	11
Volume	2
ISBN (Print)	9781618393630
Publication status	Published - 2011
Event	International Corrosion Congress 2011 - Perth Convention and Exhibition Centre, Perth, Australia Duration: 20 Nov 2011 → 24 Nov 2011 Conference number: 18th

Conference

Conference	International Corrosion Congress 2011
Abbreviated title	ICC 2011
Country/Territory	Australia
City	Perth
Period	20/11/11 → 24/11/11
Other	The 18th International Corrosion Congress took place between the 20th and the 24th November 2011 in the Perth Convention and Exhibition Centre, Australia. The International Corrosion Congress is the major event of the International Corrosion Council (ICC), an international body founded to advance corrosion science and engineering and is held once every three years by different host countries.

Keywords

Cerium
Inhibition
Oxide
Zinc

Cite this

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title = "Protecting zinc using cerium based mixed oxides",

abstract = "Zinc oxides can support the oxygen reduction reaction at high rates, hence surface oxides formed over zinc provide ineffective protection against corrosion once corrosion has commenced. A solution to this issue is to form a mixed layer of oxides over zinc. In line with approach, mixed oxides have been systematically developed using zinc and cerium oxides and then tested using potentiodynamic polarisation. The work addresses some of existing issues with respect to using cerium inhibition systems, namely the extent of immersion and presence of an optimum cerium concentration for maximum inhibition. It also outlines some of the problems that need to be modelled to design a corrosion resistant mixed oxide. It is evident that the presence of ZnO nuclei over zinc surface favours the growth of well-defined, dense cerium oxides. This particular aspect needs to be subject to further study in designing corrosion resistant zinc based mixed oxides.",

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T1 - Protecting zinc using cerium based mixed oxides

AU - Thomas, S.

AU - Venkatraman, M.S.

AU - Birbilis, N.

AU - Cole, I.S.

N1 - Conference code: 18th

PY - 2011

Y1 - 2011

N2 - Zinc oxides can support the oxygen reduction reaction at high rates, hence surface oxides formed over zinc provide ineffective protection against corrosion once corrosion has commenced. A solution to this issue is to form a mixed layer of oxides over zinc. In line with approach, mixed oxides have been systematically developed using zinc and cerium oxides and then tested using potentiodynamic polarisation. The work addresses some of existing issues with respect to using cerium inhibition systems, namely the extent of immersion and presence of an optimum cerium concentration for maximum inhibition. It also outlines some of the problems that need to be modelled to design a corrosion resistant mixed oxide. It is evident that the presence of ZnO nuclei over zinc surface favours the growth of well-defined, dense cerium oxides. This particular aspect needs to be subject to further study in designing corrosion resistant zinc based mixed oxides.

AB - Zinc oxides can support the oxygen reduction reaction at high rates, hence surface oxides formed over zinc provide ineffective protection against corrosion once corrosion has commenced. A solution to this issue is to form a mixed layer of oxides over zinc. In line with approach, mixed oxides have been systematically developed using zinc and cerium oxides and then tested using potentiodynamic polarisation. The work addresses some of existing issues with respect to using cerium inhibition systems, namely the extent of immersion and presence of an optimum cerium concentration for maximum inhibition. It also outlines some of the problems that need to be modelled to design a corrosion resistant mixed oxide. It is evident that the presence of ZnO nuclei over zinc surface favours the growth of well-defined, dense cerium oxides. This particular aspect needs to be subject to further study in designing corrosion resistant zinc based mixed oxides.

KW - Cerium

KW - Inhibition

KW - Oxide

KW - Zinc

UR - https://www.scopus.com/pages/publications/84867258329

M3 - Conference Paper

AN - SCOPUS:84867258329

SN - 9781618393630

VL - 2

SP - 1365

EP - 1375

BT - 18th International Corrosion Congress 2011

PB - Australasian Corrosion Association (ACA)

T2 - International Corrosion Congress 2011

Y2 - 20 November 2011 through 24 November 2011

ER -

Protecting zinc using cerium based mixed oxides

Abstract

Conference

Keywords

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