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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.3c02565
|2 doi
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|a pubmed24n1215.xml
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|a (NLM)37970729
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|a DE-627
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|e rakwb
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|a eng
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|a Maazallahi, Meysam
|e verfasserin
|4 aut
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|a Lead in the Presence of Iron under Alkaline Conditions for the Oxygen-Evolution Reaction
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 28.11.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The oxygen-evolution reaction (OER) is a bottleneck in water splitting, which is a critical process for energy storage. In this study, the electrochemistry of Pb in the absence or presence of K2FeO4, as a soluble Fe source, is examined at pH ≈ 13. Our findings indicate that Pb exhibits limited catalytic activity for the OER under alkaline conditions. However, upon the addition of K2FeO4 to the electrolyte, a significant enhancement in the OER activity is observed in the presence of Pb. A notable observation in this study is the formation of stable Fe(IV) species following the OER during chronoamperometry experiments conducted in an alkaline solution. In addition to in situ Raman and visible spectroscopies, the operated electrodes have been characterized by high-resolution transmission electron microscopy, scanning electron microscopy, electron spin resonance spectroscopy, X-ray diffraction, electrochemical methods, electron paramagnetic resonance, and X-ray absorption spectroscopy. Through our experimental investigations, it is consistently observed that the presence of Fe ions on the surface of Pb/PbOx serves as an effective catalyst for the OER. However, it is important to note that this heightened OER activity is only temporary due to the low adhesion of Fe ions on the surface of Pb/PbOx
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|a Journal Article
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|a Nandy, Subhajit
|e verfasserin
|4 aut
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|a Aleshkevych, Pavlo
|e verfasserin
|4 aut
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| 700 |
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|a Chae, Keun Hwa
|e verfasserin
|4 aut
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|a Najafpour, Mohammad Mahdi
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1999
|g 39(2023), 47 vom: 28. Nov., Seite 16881-16891
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:39
|g year:2023
|g number:47
|g day:28
|g month:11
|g pages:16881-16891
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|u http://dx.doi.org/10.1021/acs.langmuir.3c02565
|3 Volltext
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