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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201908126
|2 doi
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|a pubmed24n1033.xml
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|a (DE-627)NLM310017947
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|a (NLM)32419157
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Cui, Xiaoju
|e verfasserin
|4 aut
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| 245 |
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|a Robust Interface Ru Centers for High-Performance Acidic Oxygen Evolution
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|c 2020
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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 30.09.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a RuO2 is considered as the state-of-the-art electrocatalyst for the oxygen evolution reaction (OER) in acidic media. However, its practical application is largely hindered by both the high reaction overpotential and severe electrochemical corrosion of the active centers. To overcome these limitations, innovative design strategies are necessary, which remains a great challenge. Herein, robust interface Ru centers between RuO2 and graphene, via a controllable oxidation of graphene encapsulating Ru nanoparticles, are presented to efficiently enhance both the activity and stability of the acidic OER. Through precisely controlling the reaction interface, a much lower OER overpotential of only 227 mV at 10 mA cm-2 in acidic electrolyte, compared with that of 290 mV for commercial RuO2 , but a significantly higher durability than the commercial RuO2 , are achieved. Density functional theory (DFT) calculations reveal that the interface Ru centers between the RuO2 and the graphene can break the classic scaling relationships between the free energies of HOO* and HO* to reduce the limiting potential, rendering an enhancement in the intrinsic OER activity and the resistance to over-oxidation and corrosion for RuO2
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|a Journal Article
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|a DFT calculations
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|a acidic electrolytes
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|a electrocatalysis
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|a interface active centers
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|a oxygen evolution reaction
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1 |
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|a Ren, Pengju
|e verfasserin
|4 aut
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1 |
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|a Ma, Chao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhao, Jia
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Ruixue
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Shiming
|e verfasserin
|4 aut
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1 |
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|a Rajan, N Pethan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Haobo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yu, Liang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tian, Zhongqun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Deng, Dehui
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 32(2020), 25 vom: 17. Juni, Seite e1908126
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
1 |
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|g volume:32
|g year:2020
|g number:25
|g day:17
|g month:06
|g pages:e1908126
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|u http://dx.doi.org/10.1002/adma.201908126
|3 Volltext
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