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|a 10.1002/adma.202302966
|2 doi
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|a pubmed24n1197.xml
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|a (DE-627)NLM35937655X
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|a (NLM)37436805
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|a DE-627
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|a eng
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| 100 |
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|a Li, Ling
|e verfasserin
|4 aut
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|a Spin-Polarization Strategy for Enhanced Acidic Oxygen Evolution Activity
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 01.09.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 Wiley-VCH GmbH.
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|a Spin-polarization is known as a promising way to promote the anodic oxygen evolution reaction (OER), since the intermediates and products endow spin-dependent behaviors, yet it is rarely reported for ferromagnetic catalysts toward acidic OER practically used in industry. Herein, the first spin-polarization-mediated strategy is reported to create a net ferromagnetic moment in antiferromagnetic RuO2 via dilute manganese (Mn2+ ) (S = 5/2) doping for enhancing OER activity in acidic electrolyte. Element-selective X-ray magnetic circular dichroism reveals the ferromagnetic coupling between Mn and Ru ions, fulfilling the Goodenough-Kanamori rule. The ferromagnetism behavior at room temperature can be well interpreted by first principles calculations as the interaction between the Mn2+ impurity and Ru ions. Indeed, Mn-RuO2 nanoflakes exhibit a strongly magnetic field enhanced OER activity, with the lowest overpotential of 143 mV at 10 mA cmgeo -2 and negligible activity decay in 480 h stability (vs 200 mV/195 h without magnetic field) as known for magnetic effects in the literature. The intrinsic turnover frequency is also improved to reach 5.5 s-1 at 1.45 VRHE . This work highlights an important avenue of spin-engineering strategy for designing efficient acidic oxygen evolution catalysts
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|a Journal Article
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|a RuO2
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|a acidic
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|a magnetic field
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|a oxygen evolution reaction
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|a spin
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1 |
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|a Zhou, Jing
|e verfasserin
|4 aut
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|a Wang, Xiao
|e verfasserin
|4 aut
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|a Gracia, Jose
|e verfasserin
|4 aut
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|a Valvidares, Manuel
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|a Ke, Jia
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|4 aut
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|a Fang, Miaomiao
|e verfasserin
|4 aut
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|a Shen, Chenqi
|e verfasserin
|4 aut
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|a Chen, Jin-Ming
|e verfasserin
|4 aut
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|a Chang, Yu-Chung
|e verfasserin
|4 aut
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|a Pao, Chih-Wen
|e verfasserin
|4 aut
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|a Hsu, Su-Yang
|e verfasserin
|4 aut
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|a Lee, Jyh-Fu
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|4 aut
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|a Ruotolo, Antonio
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|4 aut
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|a Chin, Yiying
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|a Hu, Zhiwei
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|a Huang, Xiaoqing
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|a Shao, Qi
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 35(2023), 35 vom: 01. Sept., Seite e2302966
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:35
|g year:2023
|g number:35
|g day:01
|g month:09
|g pages:e2302966
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|u http://dx.doi.org/10.1002/adma.202302966
|3 Volltext
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