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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202200559
|2 doi
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|a pubmed24n1125.xml
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|a (DE-627)NLM337620865
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|a (NLM)35230732
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|a DE-627
|b ger
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|a eng
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|a Lin, Jiangfeng
|e verfasserin
|4 aut
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|a Boosting Energy Efficiency and Stability of Li-CO2 Batteries via Synergy between Ru Atom Clusters and Single-Atom Ru-N4 sites in the Electrocatalyst Cathode
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|c 2022
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|a Text
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 27.04.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022 Wiley-VCH GmbH.
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|a The Li-CO2 battery is a novel strategy for CO2 capture and energy-storage applications. However, the sluggish CO2 reduction and evolution reactions cause large overpotential and poor cycling performance. Herein, a new catalyst containing well-defined ruthenium (Ru) atomic clusters (RuAC ) and single-atom Ru-N4 (RuSA ) composite sites on carbon nanobox substrate (RuAC+SA NCB) (NCB = nitrogen-doped carbon nanobox) is fabricated by utilizing the different complexation effects between the Ru cation and the amine group (NH2 ) on carbon quantum dots or nitrogen moieties on NCB. Systematic experimental and theoretical investigations demonstrate the vital role of electronic synergy between RuAC and Ru-N4 in improving the electrocatalytic activity toward the CO2 evolution reaction (CO2 ER) and CO2 reduction reaction (CO2 RR). The electronic properties of the Ru-N4 sites are essentially modulated by the adjacent RuAC species, which optimizes the interactions with key reaction intermediates thereby reducing the energy barriers in the rate-determining steps of the CO2 RR and CO2 ER. Remarkably, the RuAC+SA @NCB-based cell displays unprecedented overpotentials as low as 1.65 and 1.86 V at ultrahigh rates of 1 and 2 A g-1 , and twofold cycling lifespan than the baselines. The findings provide a novel strategy to construct catalysts with composite active sites comprising multiple atom assemblies for high-performance metal-CO2 batteries
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|a Journal Article
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|a Li-CO2 batteries
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|a atomic cluster catalysts
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|a carbon quantum dots
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|a electronic synergy
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|a single-atom catalysts
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|a Ding, Jingnan
|e verfasserin
|4 aut
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|a Wang, Haozhi
|e verfasserin
|4 aut
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|a Yang, Xinyi
|e verfasserin
|4 aut
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|a Zheng, Xuerong
|e verfasserin
|4 aut
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|a Huang, Zechuan
|e verfasserin
|4 aut
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|a Song, Wanqing
|e verfasserin
|4 aut
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|a Ding, Jia
|e verfasserin
|4 aut
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|a Han, Xiaopeng
|e verfasserin
|4 aut
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|a Hu, Wenbin
|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 34(2022), 17 vom: 27. Apr., Seite e2200559
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:34
|g year:2022
|g number:17
|g day:27
|g month:04
|g pages:e2200559
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|u http://dx.doi.org/10.1002/adma.202200559
|3 Volltext
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