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The Oxygen Evolutio...
The Oxygen Evolution Reaction Drives Passivity Breakdown for Ni–Cr–Mo Alloys
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- Larsson, Alfred (author)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,LTH profilområde: Nanovetenskap och halvledarteknologi,LTH profilområden,LU profilområde: Ljus och material,Lunds universitets profilområden,Other operations, LTH,Faculty of Engineering, LTH,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Nanoscience and Semiconductor Technology,LTH Profile areas,Faculty of Engineering, LTH,LU Profile Area: Light and Materials,Lund University Profile areas
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- Grespi, Andrea (author)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,LU profilområde: Ljus och material,Lunds universitets profilområden,Other operations, LTH,Faculty of Engineering, LTH,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,LU Profile Area: Light and Materials,Lund University Profile areas
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- Abbondanza, Giuseppe (author)
- Lund University, Division of Synchrotron Radiation Research, Lund, 221 00, Sweden
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- Eidhagen, Josefin (author)
- KTH,Yt- och korrosionsvetenskap,KTH Royal Institute of Technology Division of Surface and Corrosion Science Stockholm 100 44 Sweden;Alleima (former Sandvik Materials Technology) Sandviken 811 81 Sweden
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- Gajdek, Dorotea (author)
- Malmö universitet,Institutionen för materialvetenskap och tillämpad matematik (MTM),Malmö University, Materials Science and Applied Mathematics, Malmö, 205 06, Sweden
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- Simonov, Konstantin (author)
- Swerim AB, Department of Materials and Process Development, Kista, 164 07, Sweden
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- Yue, Xiaoqi (author)
- KTH,Yt- och korrosionsvetenskap,KTH Royal Institute of Technology Division of Surface and Corrosion Science Stockholm 100 44 Sweden
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- Lienert, Ulrich (author)
- DESY Photon Science, 22607, Hamburg, Germany
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- Hegedüs, Zoltan (author)
- DESY Photon Science, 22607, Hamburg, Germany
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- Jeromin, Arno (author)
- Centre for X-ray and Nano Science (CXNS), Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany
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- Keller, Thomas F. (author)
- Centre for X-ray and Nano Science (CXNS), Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany; Department of Physics, University of Hamburg, 22607, Hamburg, Germany
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- Scardamaglia, Mattia (author)
- MAX IV Laboratory, Lund University, Lund, 221 00, Sweden
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- Shavorskiy, Andrey (author)
- MAX IV Laboratory, Lund University, Lund, 221 00, Sweden
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- Merte, Lindsay R. (author)
- Lund University,Lunds universitet,Malmö universitet,Institutionen för materialvetenskap och tillämpad matematik (MTM),Malmö University, Materials Science and Applied Mathematics, Malmö, 205 06, Sweden,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,LU profilområde: Ljus och material,Lunds universitets profilområden,Other operations, LTH,Faculty of Engineering, LTH,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,LU Profile Area: Light and Materials,Lund University Profile areas
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- Pan, Jinshan, 1962- (author)
- KTH,Yt- och korrosionsvetenskap,KTH Royal Institute of Technology Division of Surface and Corrosion Science Stockholm 100 44 Sweden
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- Lundgren, Edvin (author)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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(creator_code:org_t)
- Wiley, 2023
- 2023
- English.
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In: Advanced Materials. - : Wiley. - 0935-9648 .- 1521-4095. ; 35:39
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Abstract
Subject headings
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- Corrosion is the main factor limiting the lifetime of metallic materials, and a fundamental understanding of the governing mechanism and surface processes is difficult to achieve since the thin oxide films at the metal–liquid interface governing passivity are notoriously challenging to study. In this work, a combination of synchrotron-based techniques and electrochemical methods is used to investigate the passive film breakdown of a Ni–Cr–Mo alloy, which is used in many industrial applications. This alloy is found to be active toward oxygen evolution reaction (OER), and the OER onset coincides with the loss of passivity and severe metal dissolution. The OER mechanism involves the oxidation of Mo4+ sites in the oxide film to Mo6+ that can be dissolved, which results in passivity breakdown. This is fundamentally different from typical transpassive breakdown of Cr-containing alloys where Cr6+ is postulated to be dissolved at high anodic potentials, which is not observed here. At high current densities, OER also leads to acidification of the solution near the surface, further triggering metal dissolution. The OER plays an important role in the mechanism of passivity breakdown of Ni–Cr–Mo alloys due to their catalytic activity, and this effect needs to be considered when studying the corrosion of catalytically active alloys.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- corrosion mechanisms
- nickel alloys
- Ni–Cr–Mo
- oxygen evolution reaction
- passivity breakdown
- transpassive dissolution
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Larsson, Alfred
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Grespi, Andrea
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Abbondanza, Gius ...
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Eidhagen, Josefi ...
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Gajdek, Dorotea
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Simonov, Konstan ...
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show more...
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Yue, Xiaoqi
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Lienert, Ulrich
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Hegedüs, Zoltan
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Jeromin, Arno
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Keller, Thomas F ...
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Scardamaglia, Ma ...
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Shavorskiy, Andr ...
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Merte, Lindsay R ...
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Pan, Jinshan, 19 ...
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Lundgren, Edvin
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Materials Chemis ...
- Articles in the publication
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Advanced Materia ...
- By the university
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Royal Institute of Technology
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Malmö University
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Lund University