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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201804653
|2 doi
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|a pubmed25n0966.xml
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|a (DE-627)NLM290029287
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|a (NLM)30368937
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
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|a Li, Yue-Jiao
|e verfasserin
|4 aut
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|a Multiscale Structural Engineering of Ni-Doped CoO Nanosheets for Zinc-Air Batteries with High Power Density
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 13.11.2018
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|a Date Revised 01.10.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Zinc-air batteries offer a possible solution for large-scale energy storage due to their superhigh theoretical energy density, reliable safety, low cost, and long durability. However, their widespread application is hindered by low power density. Herein, a multiscale structural engineering of Ni-doped CoO nanosheets (NSs) for zinc-air batteries with superior high power density/energy density and durability is reported for the first time. In micro- and nanoscale, robust 2D architecture together with numerous nanopores inside the nanosheets provides an advantageous micro/nanostructured surface for O2 diffusion and a high electrocatalytic active surface area. In atomic scale, Ni doping significantly enhances the intrinsic oxygen reduction reaction activity per active site. As a result of controlled multiscale structure, the primary zinc-air battery with engineered Ni-doped CoO NSs electrode shows excellent performance with a record-high discharge peak power density of 377 mW cm-2 , and works stable for >400 h at 5 mA cm-2 . Rechargeable zinc-air battery based on Ni-doped CoO NSs affords an unprecedented small charge-discharge voltage of 0.63 V, outperforming state-of-the-art Pt/C catalyst-based device. Moreover, it is shown that Ni-doped CoO NSs assembled into all-solid-state coin cells can power 17 light-emitting diodes and charge an iPhone 7 mobile phone
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|a Journal Article
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|a electrocatalysis
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|a nanosheets
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|a oxygen reduction reaction
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|a transitional metal oxide
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|a zinc-air batteries
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|a Cui, Lan
|e verfasserin
|4 aut
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| 700 |
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|a Da, Peng-Fei
|e verfasserin
|4 aut
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|a Qiu, Kang-Wen
|e verfasserin
|4 aut
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|a Qin, Wen-Jing
|e verfasserin
|4 aut
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| 700 |
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|a Hu, Wen-Bin
|e verfasserin
|4 aut
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|a Du, Xi-Wen
|e verfasserin
|4 aut
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|a Davey, Kenneth
|e verfasserin
|4 aut
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|a Ling, Tao
|e verfasserin
|4 aut
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|a Qiao, Shi-Zhang
|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 30(2018), 46 vom: 30. Nov., Seite e1804653
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:30
|g year:2018
|g number:46
|g day:30
|g month:11
|g pages:e1804653
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|u http://dx.doi.org/10.1002/adma.201804653
|3 Volltext
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