Cargando…
Effect of the Alloying Metal on the Corrosion Resistance of Pd-Rich Binary Alloys with Pt, Rh, and Ru in Sulfuric Acid
The paper presents the study of the corrosion resistance of electrodeposited Pd and its binary alloys with Pt, Rh, and Ru on a polycrystalline Au substrate. The corrosion resistance was tested in 0.5 M sulfuric acid at room temperature using potentiodynamic polarization and electrochemical impedance...
Autores principales: | , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8198221/ https://www.ncbi.nlm.nih.gov/pubmed/34071575 http://dx.doi.org/10.3390/ma14112923 |
_version_ | 1783707086189756416 |
---|---|
author | Hubkowska, Katarzyna Kubisztal, Julian Pająk, Małgorzata Łosiewicz, Bożena Czerwiński, Andrzej |
author_facet | Hubkowska, Katarzyna Kubisztal, Julian Pająk, Małgorzata Łosiewicz, Bożena Czerwiński, Andrzej |
author_sort | Hubkowska, Katarzyna |
collection | PubMed |
description | The paper presents the study of the corrosion resistance of electrodeposited Pd and its binary alloys with Pt, Rh, and Ru on a polycrystalline Au substrate. The corrosion resistance was tested in 0.5 M sulfuric acid at room temperature using potentiodynamic polarization and electrochemical impedance spectroscopy techniques. The morphology/composition and work function values were determined by scanning electron microscopy/energy–dispersive X–ray spectroscopy and scanning Kelvin probe, respectively. The obtained results revealed that the Pd electrode is the most resistant to corrosion, whereas the Pd-Ru electrode is the most susceptible to dissolution. It was found that the corrosion resistance of Pd-binary alloys decrease in the following order: Pd > Pd-Pt > Pd-Rh > Pd-Ru. This effect was assigned mainly to the difference in surface roughness factor of tested electrodes. |
format | Online Article Text |
id | pubmed-8198221 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-81982212021-06-14 Effect of the Alloying Metal on the Corrosion Resistance of Pd-Rich Binary Alloys with Pt, Rh, and Ru in Sulfuric Acid Hubkowska, Katarzyna Kubisztal, Julian Pająk, Małgorzata Łosiewicz, Bożena Czerwiński, Andrzej Materials (Basel) Article The paper presents the study of the corrosion resistance of electrodeposited Pd and its binary alloys with Pt, Rh, and Ru on a polycrystalline Au substrate. The corrosion resistance was tested in 0.5 M sulfuric acid at room temperature using potentiodynamic polarization and electrochemical impedance spectroscopy techniques. The morphology/composition and work function values were determined by scanning electron microscopy/energy–dispersive X–ray spectroscopy and scanning Kelvin probe, respectively. The obtained results revealed that the Pd electrode is the most resistant to corrosion, whereas the Pd-Ru electrode is the most susceptible to dissolution. It was found that the corrosion resistance of Pd-binary alloys decrease in the following order: Pd > Pd-Pt > Pd-Rh > Pd-Ru. This effect was assigned mainly to the difference in surface roughness factor of tested electrodes. MDPI 2021-05-28 /pmc/articles/PMC8198221/ /pubmed/34071575 http://dx.doi.org/10.3390/ma14112923 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Hubkowska, Katarzyna Kubisztal, Julian Pająk, Małgorzata Łosiewicz, Bożena Czerwiński, Andrzej Effect of the Alloying Metal on the Corrosion Resistance of Pd-Rich Binary Alloys with Pt, Rh, and Ru in Sulfuric Acid |
title | Effect of the Alloying Metal on the Corrosion Resistance of Pd-Rich Binary Alloys with Pt, Rh, and Ru in Sulfuric Acid |
title_full | Effect of the Alloying Metal on the Corrosion Resistance of Pd-Rich Binary Alloys with Pt, Rh, and Ru in Sulfuric Acid |
title_fullStr | Effect of the Alloying Metal on the Corrosion Resistance of Pd-Rich Binary Alloys with Pt, Rh, and Ru in Sulfuric Acid |
title_full_unstemmed | Effect of the Alloying Metal on the Corrosion Resistance of Pd-Rich Binary Alloys with Pt, Rh, and Ru in Sulfuric Acid |
title_short | Effect of the Alloying Metal on the Corrosion Resistance of Pd-Rich Binary Alloys with Pt, Rh, and Ru in Sulfuric Acid |
title_sort | effect of the alloying metal on the corrosion resistance of pd-rich binary alloys with pt, rh, and ru in sulfuric acid |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8198221/ https://www.ncbi.nlm.nih.gov/pubmed/34071575 http://dx.doi.org/10.3390/ma14112923 |
work_keys_str_mv | AT hubkowskakatarzyna effectofthealloyingmetalonthecorrosionresistanceofpdrichbinaryalloyswithptrhandruinsulfuricacid AT kubisztaljulian effectofthealloyingmetalonthecorrosionresistanceofpdrichbinaryalloyswithptrhandruinsulfuricacid AT pajakmałgorzata effectofthealloyingmetalonthecorrosionresistanceofpdrichbinaryalloyswithptrhandruinsulfuricacid AT łosiewiczbozena effectofthealloyingmetalonthecorrosionresistanceofpdrichbinaryalloyswithptrhandruinsulfuricacid AT czerwinskiandrzej effectofthealloyingmetalonthecorrosionresistanceofpdrichbinaryalloyswithptrhandruinsulfuricacid |