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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202303331
|2 doi
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|a pubmed24n1193.xml
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|a (DE-627)NLM357968263
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|a (NLM)37295069
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|a DE-627
|b ger
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|a eng
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|a Yang, Chengdong
|e verfasserin
|4 aut
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|a Mn-Oxygen Compounds Coordinated Ruthenium Sites with Deprotonated and Low Oxophilic Microenvironments for Membrane Electrolyzer-Based H2 -Production
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|c 2023
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|a Text
|b txt
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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 21.09.2023
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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 Among the platinum-group metals, ruthenium (Ru), with a low water dissociation energy, is considered a promising alternative to substitute Pt for catalyzing hydrogen evolution reaction (HER). However, optimizing the adsorption-desorption energies of H* and OH* intermediates on Ru catalytic sites is extremely desirable but remains challenging. Inspired by the natural catalytic characteristics of Mn-oxygen complex, this study reports to design Mn-oxygen compounds coordinated Ru sites (MOC-Ru) with deprotonated and low oxophilic microenvironments for modulating the adsorption-desorption of H* and OH* to promote HER kinetics. Benefiting from the unique advantages of MOC structures, including weakened HOH bond at interface, electron donation ability, and deprotonation capability, the MOC-Ru exhibits extremely low overpotential and ultralong stability in both acidic and alkaline electrolytes. Experimental observations and theoretical calculations elucidate that the MOC can accelerate water dissociation kinetics and promote OH* desorption in alkaline conditions and trigger the long-range H* spillover for H2 -release in acid conditions. The outstanding activity and stability of membrane electrolyzer display that the MOC-Ru catalyst holds great potential as cathode for H2 -production. This study provides essential insights into the crucial roles of deprotonated and low oxophilic microenvironments in HER catalysis and offers a new pathway to create an efficient water-splitting cathode
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|a Journal Article
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|a Mn-oxygen compounds
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|a bioinspired designs
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|a electrocatalysts
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|a microenvironment modulations
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|a water splitting
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| 700 |
1 |
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|a Wu, Zihe
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhao, Zhenyang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gao, Yun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ma, Tian
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Luo, Xianglin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cheng, Chong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Yi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Shuang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhao, Changsheng
|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), 38 vom: 01. Sept., Seite e2303331
|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:38
|g day:01
|g month:09
|g pages:e2303331
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|u http://dx.doi.org/10.1002/adma.202303331
|3 Volltext
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|d 35
|j 2023
|e 38
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|h e2303331
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