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240903s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202407570
|2 doi
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|a pubmed24n1522.xml
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|a (DE-627)NLM37711166X
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|a (NLM)39224050
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|a DE-627
|b ger
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Qin, Meng
|e verfasserin
|4 aut
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|a Ultrahigh Pyridinic/Pyrrolic N Enabling N/S Co-Doped Holey Graphene with Accelerated Kinetics for Alkali-Ion Batteries
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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
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|a Date Revised 03.09.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a © 2024 Wiley‐VCH GmbH.
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|a Carbonaceous materials hold great promise for K-ion batteries due to their low cost, adjustable interlayer spacing, and high electronic conductivity. Nevertheless, the narrow interlayer spacing significantly restricts their potassium storage ability. Herein, hierarchical N, S co-doped exfoliated holey graphene (NSEHG) with ultrahigh pyridinic/pyrrolic N (90.6 at.%) and large interlayer spacing (0.423 nm) is prepared through micro-explosion assisted thermal exfoliation of graphene oxide (GO). The underlying mechanism of the micro-explosive exfoliation of GO is revealed. The NSEHG electrode delivers a remarkable reversible capacity (621 mAh g-1 at 0.05 A g-1), outstanding rate capability (155 mAh g-1 at 10 A g-1), and robust cyclic stability (0.005% decay per cycle after 4400 cycles at 5 A g-1), exceeding most of the previously reported graphene anodes in K-ion batteries. In addition, the NSEHG electrode exhibits encouraging performances as anodes for Li-/Na-ion batteries. Furthermore, the assembled activated carbon||NSEHG potassium-ion hybrid capacitor can deliver an impressive energy density of 141 Wh kg-1 and stable cycling performance with 96.1% capacitance retention after 4000 cycles at 1 A g-1. This work can offer helpful fundamental insights into design and scalable fabrication of high-performance graphene anodes for alkali metal ion batteries
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|a Journal Article
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|a explosion‐assisted thermal exfoliation
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|a holey graphene
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|a large interlayer spacing
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|a nitrogen/sulfur dual‐doping
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| 650 |
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|a potassium‐ion batteries
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|a Chen, Chi
|e verfasserin
|4 aut
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|a Zhang, Bohan
|e verfasserin
|4 aut
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1 |
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|a Yan, Jun
|e verfasserin
|4 aut
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| 700 |
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|a Qiu, Jieshan
|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 (2024) vom: 03. Sept., Seite e2407570
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g year:2024
|g day:03
|g month:09
|g pages:e2407570
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|u http://dx.doi.org/10.1002/adma.202407570
|3 Volltext
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