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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201704244
|2 doi
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|a pubmed24n0931.xml
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|a (DE-627)NLM27935181X
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|a (NLM)29271501
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Chu, Yanting
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Embedding MnOMn3 O4 Nanoparticles in an N-Doped-Carbon Framework Derived from Mn-Organic Clusters for Efficient Lithium Storage
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|c 2018
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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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| 500 |
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|a Date Completed 01.08.2018
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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 © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a The first synthesis of MnOMn3 O4 nanoparticles embedded in an N-doped porous carbon framework (MnO@Mn3 O4 /NPCF) through pyrolysis of mixed-valent Mn8 clusters is reported. The unique features of MnO@Mn3 O4 /NPCF are derived from the distinct interfacial structure of the Mn8 clusters, implying a new methodological strategy for hybrids. The characteristics of MnO@Mn3 O4 are determined by conducting high angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) and electron energy loss spectroscopy (EELS) valence-state analyses. Due to the combined advantages of MnO@Mn3 O4 , the uniform distribution, and the NPCF, MnO@Mn3 O4 /NPCF displays unprecedented lithium-storage performance (1500 mA h g-1 at 0.2 A g-1 over 270 cycles). Quantitative analysis reveals that capacitance and diffusion mechanisms account for Li+ storage, wherein the former dominates. First-principles calculations highlight the strong affiliation of MnO@Mn3 O4 and the NPCF, which favor structural stability. Meanwhile, defects of the NPCF decrease the diffusion energy barrier, thus enhancing the Li+ pseudocapacitive process, reversible capacity, and long cycling performance. This work presents a new methodology to construct composites for energy storage and conversion
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|a Journal Article
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|a Mn8 clusters
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|a MnO@Mn3O4 nanoparticles
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|a anodes
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|a lithium-ion batteries
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| 650 |
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|a nitrogen-doped porous carbon frameworks
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| 700 |
1 |
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|a Guo, Lingyu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xi, Baojuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Feng, Zhenyu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wu, Fangfang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lin, Yue
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Jincheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sun, Di
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Feng, Jinkui
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Qian, Yitai
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xiong, Shenglin
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 30(2018), 6 vom: 05. Feb.
|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:6
|g day:05
|g month:02
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|u http://dx.doi.org/10.1002/adma.201704244
|3 Volltext
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