Insights into the reaction pathways of platinum dissolution and oxidation during electrochemical processes
Recent studies have shown the limits of passivity of the platinum electrode. Since it is an important benchmarked electrode for various catalysis reactions and a vital counter electrode, it is essential to understand the mechanism of leaching of the platinum electrode. This report studies the electr...
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Format: | Article |
Language: | English |
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Elsevier
2023-02-01
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Series: | Electrochemistry Communications |
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Online Access: | http://www.sciencedirect.com/science/article/pii/S1388248123000140 |
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author | Sumit Bawari Tharangattu N. Narayanan Jagannath Mondal |
author_facet | Sumit Bawari Tharangattu N. Narayanan Jagannath Mondal |
author_sort | Sumit Bawari |
collection | DOAJ |
description | Recent studies have shown the limits of passivity of the platinum electrode. Since it is an important benchmarked electrode for various catalysis reactions and a vital counter electrode, it is essential to understand the mechanism of leaching of the platinum electrode. This report studies the electrochemically driven oxidation and leaching of platinum using a combined theoretical and experimental framework. With insights from electrochemistry, surface enhanced Raman spectroscopy, and electrochemically driven reactive MD, different regimes of chemisorption, surface oxidation, and 3D oxide formation are uncovered that directly affect leaching of individual Pt2+(H2O)4 molecules. |
first_indexed | 2024-04-10T19:36:38Z |
format | Article |
id | doaj.art-7399ad365be64f73a1a4cc38f7450814 |
institution | Directory Open Access Journal |
issn | 1388-2481 |
language | English |
last_indexed | 2024-04-10T19:36:38Z |
publishDate | 2023-02-01 |
publisher | Elsevier |
record_format | Article |
series | Electrochemistry Communications |
spelling | doaj.art-7399ad365be64f73a1a4cc38f74508142023-01-30T04:12:53ZengElsevierElectrochemistry Communications1388-24812023-02-01147107440Insights into the reaction pathways of platinum dissolution and oxidation during electrochemical processesSumit Bawari0Tharangattu N. Narayanan1Jagannath Mondal2Corresponding authors.; Tata Institute of Fundamental Research-Hyderabad, Sy. No. 36/P Serilingampally Mandal, Ranga Reddy District, Hyderabad 500046, IndiaCorresponding authors.; Tata Institute of Fundamental Research-Hyderabad, Sy. No. 36/P Serilingampally Mandal, Ranga Reddy District, Hyderabad 500046, IndiaCorresponding authors.; Tata Institute of Fundamental Research-Hyderabad, Sy. No. 36/P Serilingampally Mandal, Ranga Reddy District, Hyderabad 500046, IndiaRecent studies have shown the limits of passivity of the platinum electrode. Since it is an important benchmarked electrode for various catalysis reactions and a vital counter electrode, it is essential to understand the mechanism of leaching of the platinum electrode. This report studies the electrochemically driven oxidation and leaching of platinum using a combined theoretical and experimental framework. With insights from electrochemistry, surface enhanced Raman spectroscopy, and electrochemically driven reactive MD, different regimes of chemisorption, surface oxidation, and 3D oxide formation are uncovered that directly affect leaching of individual Pt2+(H2O)4 molecules.http://www.sciencedirect.com/science/article/pii/S1388248123000140PlatinumOxidationLeachingReaxFFSERS |
spellingShingle | Sumit Bawari Tharangattu N. Narayanan Jagannath Mondal Insights into the reaction pathways of platinum dissolution and oxidation during electrochemical processes Electrochemistry Communications Platinum Oxidation Leaching ReaxFF SERS |
title | Insights into the reaction pathways of platinum dissolution and oxidation during electrochemical processes |
title_full | Insights into the reaction pathways of platinum dissolution and oxidation during electrochemical processes |
title_fullStr | Insights into the reaction pathways of platinum dissolution and oxidation during electrochemical processes |
title_full_unstemmed | Insights into the reaction pathways of platinum dissolution and oxidation during electrochemical processes |
title_short | Insights into the reaction pathways of platinum dissolution and oxidation during electrochemical processes |
title_sort | insights into the reaction pathways of platinum dissolution and oxidation during electrochemical processes |
topic | Platinum Oxidation Leaching ReaxFF SERS |
url | http://www.sciencedirect.com/science/article/pii/S1388248123000140 |
work_keys_str_mv | AT sumitbawari insightsintothereactionpathwaysofplatinumdissolutionandoxidationduringelectrochemicalprocesses AT tharangattunnarayanan insightsintothereactionpathwaysofplatinumdissolutionandoxidationduringelectrochemicalprocesses AT jagannathmondal insightsintothereactionpathwaysofplatinumdissolutionandoxidationduringelectrochemicalprocesses |