Self-replenishing Ni-rich stainless-steel electrode toward oxygen evolution reaction at ampere-level
Abstract In the past few decades, tremendous attention has been devoted to enhancing the activity of oxygen evolution reaction (OER) catalysts for hydrogen production, while the cost and long-term stability of catalysts, which can play an even more important role in industrialization, have been much...
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Nature Portfolio
2025-05-01
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| Series: | Communications Chemistry |
| Online Access: | https://doi.org/10.1038/s42004-025-01549-4 |
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| author | Xiang Lyu David A. Cullen Max Pupucevski Runming Tao Harry M. Meyer Jun Yang Jianlin Li Todd J. Toops Tamara J. Keever Hnin Khaing Emily Tong Judith Lattimer Tomas Grejtak J. David Arregui-Mena Alexey Serov |
| author_facet | Xiang Lyu David A. Cullen Max Pupucevski Runming Tao Harry M. Meyer Jun Yang Jianlin Li Todd J. Toops Tamara J. Keever Hnin Khaing Emily Tong Judith Lattimer Tomas Grejtak J. David Arregui-Mena Alexey Serov |
| author_sort | Xiang Lyu |
| collection | DOAJ |
| description | Abstract In the past few decades, tremendous attention has been devoted to enhancing the activity of oxygen evolution reaction (OER) catalysts for hydrogen production, while the cost and long-term stability of catalysts, which can play an even more important role in industrialization, have been much less emphasized. Herein, we engineered an OER electrode from abundant stainless steel (SS) via facile approaches, and the obtained electrode consists of a Ni-rich oxide surface layer with a Fe-rich metal substrate. An outstanding activity was observed with an overpotential of 316 mV at 100 mA cm−2 in 1 M KOH electrolyte. Additionally, an electrode self-replenishing concept is proposed in which a Ni-rich catalyst layer can be regenerated from a metallic substrate due to the difference in diffusion and dissolution rates of metal oxides/hydroxides, and this regeneration is validated by various characterizations. A recorded degradation rate of 0.012 was observed at 1000 mA cm−2 for 1000 h. The facile engineering of OER electrodes from SS combined with the self-replenishing catalyst can potentially address the cost, activity, and long-term stability barriers. |
| format | Article |
| id | doaj-art-664e20f116ce4afa8a7a30dfe9dea92d |
| institution | OA Journals |
| issn | 2399-3669 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Chemistry |
| spelling | doaj-art-664e20f116ce4afa8a7a30dfe9dea92d2025-08-20T02:32:03ZengNature PortfolioCommunications Chemistry2399-36692025-05-018111110.1038/s42004-025-01549-4Self-replenishing Ni-rich stainless-steel electrode toward oxygen evolution reaction at ampere-levelXiang Lyu0David A. Cullen1Max Pupucevski2Runming Tao3Harry M. Meyer4Jun Yang5Jianlin Li6Todd J. Toops7Tamara J. Keever8Hnin Khaing9Emily Tong10Judith Lattimer11Tomas Grejtak12J. David Arregui-Mena13Alexey Serov14Electrification and Energy Infrastructures Division, Oak Ridge National LaboratoryCenter for Nanophase Materials Sciences, Oak Ridge National LaboratoryGiner LabsElectrification and Energy Infrastructures Division, Oak Ridge National LaboratoryChemical Sciences Division, Oak Ridge National LaboratoryElectrification and Energy Infrastructures Division, Oak Ridge National LaboratoryElectrification and Energy Infrastructures Division, Oak Ridge National LaboratoryBuildings and Transportation Science Division, Oak Ridge National LaboratoryChemical Sciences Division, Oak Ridge National LaboratoryChemical Sciences Division, Oak Ridge National LaboratoryGiner LabsGiner LabsMaterials Science and Technology Division, Oak Ridge National LaboratoryMaterials Science and Technology Division, Oak Ridge National LaboratoryElectrification and Energy Infrastructures Division, Oak Ridge National LaboratoryAbstract In the past few decades, tremendous attention has been devoted to enhancing the activity of oxygen evolution reaction (OER) catalysts for hydrogen production, while the cost and long-term stability of catalysts, which can play an even more important role in industrialization, have been much less emphasized. Herein, we engineered an OER electrode from abundant stainless steel (SS) via facile approaches, and the obtained electrode consists of a Ni-rich oxide surface layer with a Fe-rich metal substrate. An outstanding activity was observed with an overpotential of 316 mV at 100 mA cm−2 in 1 M KOH electrolyte. Additionally, an electrode self-replenishing concept is proposed in which a Ni-rich catalyst layer can be regenerated from a metallic substrate due to the difference in diffusion and dissolution rates of metal oxides/hydroxides, and this regeneration is validated by various characterizations. A recorded degradation rate of 0.012 was observed at 1000 mA cm−2 for 1000 h. The facile engineering of OER electrodes from SS combined with the self-replenishing catalyst can potentially address the cost, activity, and long-term stability barriers.https://doi.org/10.1038/s42004-025-01549-4 |
| spellingShingle | Xiang Lyu David A. Cullen Max Pupucevski Runming Tao Harry M. Meyer Jun Yang Jianlin Li Todd J. Toops Tamara J. Keever Hnin Khaing Emily Tong Judith Lattimer Tomas Grejtak J. David Arregui-Mena Alexey Serov Self-replenishing Ni-rich stainless-steel electrode toward oxygen evolution reaction at ampere-level Communications Chemistry |
| title | Self-replenishing Ni-rich stainless-steel electrode toward oxygen evolution reaction at ampere-level |
| title_full | Self-replenishing Ni-rich stainless-steel electrode toward oxygen evolution reaction at ampere-level |
| title_fullStr | Self-replenishing Ni-rich stainless-steel electrode toward oxygen evolution reaction at ampere-level |
| title_full_unstemmed | Self-replenishing Ni-rich stainless-steel electrode toward oxygen evolution reaction at ampere-level |
| title_short | Self-replenishing Ni-rich stainless-steel electrode toward oxygen evolution reaction at ampere-level |
| title_sort | self replenishing ni rich stainless steel electrode toward oxygen evolution reaction at ampere level |
| url | https://doi.org/10.1038/s42004-025-01549-4 |
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