Catalysis Under Alternating Magnetic Field: Rethinking the Origin of Enhanced Hydrogen Evolution Activities
Abstract Magnetic fields are proposed to be a clean and powerful tool to boost the heterogeneous reaction processes, from the simple two‐electron transfer hydrogen evolution to the complicated proton‐coupling of multi‐electron transfer reactions. Although many mechanisms are proposed to explain the...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2024-01-01
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| Series: | Advanced Physics Research |
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| Online Access: | https://doi.org/10.1002/apxr.202300067 |
| _version_ | 1797323617973829632 |
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| author | Sitong Liu Yudi Zhang Wen Sun Dandan Ma Jinfu Ma Zhiyang Wei Juntao Huo Dengsong Zhang Guowei Li |
| author_facet | Sitong Liu Yudi Zhang Wen Sun Dandan Ma Jinfu Ma Zhiyang Wei Juntao Huo Dengsong Zhang Guowei Li |
| author_sort | Sitong Liu |
| collection | DOAJ |
| description | Abstract Magnetic fields are proposed to be a clean and powerful tool to boost the heterogeneous reaction processes, from the simple two‐electron transfer hydrogen evolution to the complicated proton‐coupling of multi‐electron transfer reactions. Although many mechanisms are proposed to explain the field‐assistant enhancement of activities, it remains an open question of how to understand the contradictory experiment results. In this study, the interplay between the alternating magnetic field (AMF) and the working electrodes from the viewpoint of their relative geometric positions is investigated. It is found that the HER current is almost doubled at an AMF of 25 mT when Pt foil and AMF are parallelly arranged, which is more significant than the perpendicularly arranged configuration. A significant increase in solution resistance is observed, which is in contradiction to previous works. The changing of currents with the AMF strength is investigated for the diamagnetic Cu, ferromagnetic Ni, and paramagnetic Ti and Pt wire, all suggesting the vital role of the induced electromotive force, which is a result of the relative geometric positions between the electrode and AMF. The findings provide an alternative mechanism for the magnetic field‐assisted electrocatalytic processes, which is helpful for the rational design of high‐performance catalysts. |
| first_indexed | 2024-03-08T05:32:17Z |
| format | Article |
| id | doaj.art-ae9dabf5edfd443ca8d9951333322aa2 |
| institution | Directory Open Access Journal |
| issn | 2751-1200 |
| language | English |
| last_indexed | 2024-03-08T05:32:17Z |
| publishDate | 2024-01-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Physics Research |
| spelling | doaj.art-ae9dabf5edfd443ca8d9951333322aa22024-02-06T04:50:39ZengWiley-VCHAdvanced Physics Research2751-12002024-01-0131n/an/a10.1002/apxr.202300067Catalysis Under Alternating Magnetic Field: Rethinking the Origin of Enhanced Hydrogen Evolution ActivitiesSitong Liu0Yudi Zhang1Wen Sun2Dandan Ma3Jinfu Ma4Zhiyang Wei5Juntao Huo6Dengsong Zhang7Guowei Li8CAS Key Laboratory of Magnetic Materials and Devices Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 ChinaCAS Key Laboratory of Magnetic Materials and Devices Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 ChinaCAS Key Laboratory of Magnetic Materials and Devices Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 ChinaSchool of Materials Science and Engineering North Minzu University Yinchuan 750021 ChinaSchool of Materials Science and Engineering North Minzu University Yinchuan 750021 ChinaCAS Key Laboratory of Magnetic Materials and Devices Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 ChinaCAS Key Laboratory of Magnetic Materials and Devices Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 ChinaState Key Laboratory of Advanced Special Steel School of Materials Science and Engineering International Joint Laboratory of Catalytic Chemistry College of Sciences Shanghai University Shanghai 200444 ChinaCAS Key Laboratory of Magnetic Materials and Devices Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 ChinaAbstract Magnetic fields are proposed to be a clean and powerful tool to boost the heterogeneous reaction processes, from the simple two‐electron transfer hydrogen evolution to the complicated proton‐coupling of multi‐electron transfer reactions. Although many mechanisms are proposed to explain the field‐assistant enhancement of activities, it remains an open question of how to understand the contradictory experiment results. In this study, the interplay between the alternating magnetic field (AMF) and the working electrodes from the viewpoint of their relative geometric positions is investigated. It is found that the HER current is almost doubled at an AMF of 25 mT when Pt foil and AMF are parallelly arranged, which is more significant than the perpendicularly arranged configuration. A significant increase in solution resistance is observed, which is in contradiction to previous works. The changing of currents with the AMF strength is investigated for the diamagnetic Cu, ferromagnetic Ni, and paramagnetic Ti and Pt wire, all suggesting the vital role of the induced electromotive force, which is a result of the relative geometric positions between the electrode and AMF. The findings provide an alternative mechanism for the magnetic field‐assisted electrocatalytic processes, which is helpful for the rational design of high‐performance catalysts.https://doi.org/10.1002/apxr.202300067hydrogen evolution reactioninduced electromotive forcemagnetic fieldsmagneto‐catalysis |
| spellingShingle | Sitong Liu Yudi Zhang Wen Sun Dandan Ma Jinfu Ma Zhiyang Wei Juntao Huo Dengsong Zhang Guowei Li Catalysis Under Alternating Magnetic Field: Rethinking the Origin of Enhanced Hydrogen Evolution Activities Advanced Physics Research hydrogen evolution reaction induced electromotive force magnetic fields magneto‐catalysis |
| title | Catalysis Under Alternating Magnetic Field: Rethinking the Origin of Enhanced Hydrogen Evolution Activities |
| title_full | Catalysis Under Alternating Magnetic Field: Rethinking the Origin of Enhanced Hydrogen Evolution Activities |
| title_fullStr | Catalysis Under Alternating Magnetic Field: Rethinking the Origin of Enhanced Hydrogen Evolution Activities |
| title_full_unstemmed | Catalysis Under Alternating Magnetic Field: Rethinking the Origin of Enhanced Hydrogen Evolution Activities |
| title_short | Catalysis Under Alternating Magnetic Field: Rethinking the Origin of Enhanced Hydrogen Evolution Activities |
| title_sort | catalysis under alternating magnetic field rethinking the origin of enhanced hydrogen evolution activities |
| topic | hydrogen evolution reaction induced electromotive force magnetic fields magneto‐catalysis |
| url | https://doi.org/10.1002/apxr.202300067 |
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