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231227s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202313032
|2 doi
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|a pubmed25n1219.xml
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|a (DE-627)NLM366045660
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|a (NLM)38113897
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Yoo, Seungwoo
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Nanocluster Surface Microenvironment Modulates Electrocatalytic CO2 Reduction
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|c 2024
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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
|b cr
|2 rdacarrier
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|a Date Revised 28.03.2024
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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 The catalytic activity and product selectivity of the electrochemical CO2 reduction reaction (eCO2RR) depend strongly on the local microenvironment of mass diffusion at the nanostructured catalyst and electrolyte interface. Achieving a molecular-level understanding of the electrocatalytic reaction requires the development of tunable metal-ligand interfacial structures with atomic precision, which is highly challenging. Here, the synthesis and molecular structure of a 25-atom silver nanocluster interfaced with an organic shell comprising 18 thiolate ligands are presented. The locally induced hydrophobicity by bulky alkyl functionality near the surface of the Ag25 cluster dramatically enhances the eCO2RR activity (CO Faradaic efficiency, FECO: 90.3%) with higher CO partial current density (jCO) in an H-cell compared to Ag25 cluster (FECO: 66.6%) with confined hydrophilicity, which modulates surface interactions with water and CO2. Remarkably, the hydrophobic Ag25 cluster exhibits jCO as high as -240 mA cm-2 with FECO >90% at -3.4 V cell potential in a gas-fed membrane electrode assembly device. Furthermore, this cluster demonstrates stable eCO2RR over 120 h. Operando surface-enhanced infrared absorption spectroscopy and theoretical simulations reveal how the ligands alter the neighboring water structure and *CO intermediates, impacting the intrinsic eCO2RR activity, which provides atomistic mechanistic insights into the crucial role of confined hydrophobicity
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|a Journal Article
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4 |
|a Ag25 nanocluster
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| 650 |
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4 |
|a CO2 reduction
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| 650 |
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4 |
|a carbon monoxide
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| 650 |
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4 |
|a interfacial structure
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| 650 |
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4 |
|a local hydrophobicity
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| 700 |
1 |
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|a Yoo, Suhwan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Deng, Guocheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sun, Fang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lee, Kangjae
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jang, Hyunsung
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lee, Chan Woo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Xiaolin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jang, Junghwan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tang, Qing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hwang, Yun Jeong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hyeon, Taeghwan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bootharaju, Megalamane Siddaramappa
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 13 vom: 08. März, Seite e2313032
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
1 |
8 |
|g volume:36
|g year:2024
|g number:13
|g day:08
|g month:03
|g pages:e2313032
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202313032
|3 Volltext
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|d 36
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|h e2313032
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