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231225s2017 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201701820
|2 doi
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|a pubmed24n0914.xml
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|a (DE-627)NLM274200716
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|a (NLM)28745412
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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 Hu, Congling
|e verfasserin
|4 aut
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| 245 |
1 |
5 |
|a Edge Sites with Unsaturated Coordination on Core-Shell Mn3 O4 Mnx Co3-x O4 Nanostructures for Electrocatalytic Water Oxidation
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|c 2017
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| 336 |
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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
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|2 rdacarrier
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|a Date Completed 18.07.2018
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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 © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Transition-metal oxides are extensively investigated as efficient electrocatalysts for the oxygen evolution reaction (OER). However, large-scale applications remain challenging due to their moderate catalytic activity. Optimized regulation of surface states can lead to improvement of catalytic properties. Here, the design of MnCox Mn3-x O4 nanoparticles with abundant edge sites via a simple seed-mediated growth strategy is described. The unsaturated coordination generated on the edge sites of Cox Mn3-x O4 shells makes a positive contribution to the surface-structure tailoring. Density functional theory calculations indicate that the edge sites with unsaturated coordination exhibit intense affinity for OH- in the alkaline electrolyte, which greatly enhances the electrochemical OER performance of the catalysts. The resulting Mn@Cox Mn3-x O4 catalysts yield a current density of 10 mA cm-2 at an overpotential of 246 mV and a relatively low Tafel slope of 46 mV dec-1 . The successful synthesis of these metal oxides nanoparticles with edge sites may pave a new path for rationally fabricating efficient OER catalysts
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|a Journal Article
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4 |
|a cobalt-manganese spinel oxides
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4 |
|a edge sites
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4 |
|a oxygen evolution reaction
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4 |
|a unsaturated coordination
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| 650 |
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4 |
|a water splitting
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1 |
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|a Zhang, Lei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhao, Zhi-Jian
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Luo, Jun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shi, Jing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Huang, Zhiqi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gong, Jinlong
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 29(2017), 36 vom: 12. Sept.
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
1 |
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|g volume:29
|g year:2017
|g number:36
|g day:12
|g month:09
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|u http://dx.doi.org/10.1002/adma.201701820
|3 Volltext
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|a AR
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|d 29
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|e 36
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|c 09
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