Spiky Nickel Electrodes for Electrochemical Oxygen Evolution Catalysis by Femtosecond Laser Structuring
Micro- and nanostructured Ni/NiO surfaces were generated by femtosecond laser structuring for oxygen evolution reaction in alkaline water electrolysis cells. For two different angles between the laser beam and the nickel surface, two different types of laser-structured electrodes were prepared, char...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | International Journal of Electrochemistry |
| Online Access: | http://dx.doi.org/10.1155/2018/9875438 |
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| author | Felix Rieck genannt Best Jürgen Koch Gerhard Lilienkamp Franz Körkemeyer Hans Jürgen Maier Jürgen Caro Karsten Lange |
| author_facet | Felix Rieck genannt Best Jürgen Koch Gerhard Lilienkamp Franz Körkemeyer Hans Jürgen Maier Jürgen Caro Karsten Lange |
| author_sort | Felix Rieck genannt Best |
| collection | DOAJ |
| description | Micro- and nanostructured Ni/NiO surfaces were generated by femtosecond laser structuring for oxygen evolution reaction in alkaline water electrolysis cells. For two different angles between the laser beam and the nickel surface, two different types of laser-structured electrodes were prepared, characterized, and compared with a plane tempered nickel electrode. Their electrochemical activities for the oxygen evolution reaction were tested by using cyclic and linear sweep voltammetry. The chemical surface composition was investigated by X-ray photoelectron spectroscopy. Laser structuring increased the overall electrochemical performance by more than one order of magnitude. The overpotential of the laser-structured electrodes for the oxygen evolution reaction was decreased by more than 100 mV due to high defect densities of the structures created by the laser ablation process. |
| format | Article |
| id | doaj-art-404eb8aef11d44fe84d4fe54829fc42b |
| institution | DOAJ |
| issn | 2090-3529 2090-3537 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Electrochemistry |
| spelling | doaj-art-404eb8aef11d44fe84d4fe54829fc42b2025-08-20T02:39:12ZengWileyInternational Journal of Electrochemistry2090-35292090-35372018-01-01201810.1155/2018/98754389875438Spiky Nickel Electrodes for Electrochemical Oxygen Evolution Catalysis by Femtosecond Laser StructuringFelix Rieck genannt Best0Jürgen Koch1Gerhard Lilienkamp2Franz Körkemeyer3Hans Jürgen Maier4Jürgen Caro5Karsten Lange6Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstr. 3A, 30167 Hannover, GermanyLaser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover, GermanyInstitute of Energy Research and Physical Technologies, TU Clausthal, Leibnizstr. 4, 38678 Clausthal-Zellerfeld, GermanyInstitut für Werkstoffkunde (Material Science), Leibniz Universität Hannover, An der Universität 2, 30823 Garbsen, GermanyInstitut für Werkstoffkunde (Material Science), Leibniz Universität Hannover, An der Universität 2, 30823 Garbsen, GermanyInstitute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstr. 3A, 30167 Hannover, GermanyInstitute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstr. 3A, 30167 Hannover, GermanyMicro- and nanostructured Ni/NiO surfaces were generated by femtosecond laser structuring for oxygen evolution reaction in alkaline water electrolysis cells. For two different angles between the laser beam and the nickel surface, two different types of laser-structured electrodes were prepared, characterized, and compared with a plane tempered nickel electrode. Their electrochemical activities for the oxygen evolution reaction were tested by using cyclic and linear sweep voltammetry. The chemical surface composition was investigated by X-ray photoelectron spectroscopy. Laser structuring increased the overall electrochemical performance by more than one order of magnitude. The overpotential of the laser-structured electrodes for the oxygen evolution reaction was decreased by more than 100 mV due to high defect densities of the structures created by the laser ablation process.http://dx.doi.org/10.1155/2018/9875438 |
| spellingShingle | Felix Rieck genannt Best Jürgen Koch Gerhard Lilienkamp Franz Körkemeyer Hans Jürgen Maier Jürgen Caro Karsten Lange Spiky Nickel Electrodes for Electrochemical Oxygen Evolution Catalysis by Femtosecond Laser Structuring International Journal of Electrochemistry |
| title | Spiky Nickel Electrodes for Electrochemical Oxygen Evolution Catalysis by Femtosecond Laser Structuring |
| title_full | Spiky Nickel Electrodes for Electrochemical Oxygen Evolution Catalysis by Femtosecond Laser Structuring |
| title_fullStr | Spiky Nickel Electrodes for Electrochemical Oxygen Evolution Catalysis by Femtosecond Laser Structuring |
| title_full_unstemmed | Spiky Nickel Electrodes for Electrochemical Oxygen Evolution Catalysis by Femtosecond Laser Structuring |
| title_short | Spiky Nickel Electrodes for Electrochemical Oxygen Evolution Catalysis by Femtosecond Laser Structuring |
| title_sort | spiky nickel electrodes for electrochemical oxygen evolution catalysis by femtosecond laser structuring |
| url | http://dx.doi.org/10.1155/2018/9875438 |
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