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240327s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202401856
|2 doi
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|a pubmed24n1474.xml
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|a (DE-627)NLM370194055
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|a (NLM)38529841
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|a DE-627
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|c DE-627
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|a eng
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|a Zhou, Huijie
|e verfasserin
|4 aut
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|a Stabilizing Ni2+ in Hollow Nano MOF/Polymetallic Phosphides Composites for Enhanced Electrochemical Performance in 3D-Printed Micro-Supercapacitors
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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
|b cr
|2 rdacarrier
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|a Date Revised 18.07.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2024 Wiley‐VCH GmbH.
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|a Polymetallic phosphides exhibit favorable conductivities. A reasonable design of nano-metal-organic frame (MOF) composite morphologies and in situ introduction of polymetallic phosphides into the framework can effectively improve electrolyte penetration and rapid electron transfer. To address existing challenges, Ni, with a strong coordination ability with N, is introduced to partially replace Co in nano-Co-MOF composite. The hollow nanostructure is stabilized through CoNi bimetallic coordination and low-temperature controllable polymetallic phosphide generation rate. The Ni, Co, and P atoms, generated during reduction, effectively enhance electron transfer rate within the framework. X-ray absorption fine structure (XAFS) characterization results further confirm the existence of Ni-N, Ni-Ni, and Co-Co structures in the nanocomposite. The changes in each component during the charge-discharge process of the electrochemical reactions are investigated using in situ X-ray diffraction (XRD). Theoretical calculations further confirm that P can effectively improve conductivity. VZNPGC//MXene MSCs, constructed with active materials derived from the hollow nano MOF composites synthesized through the Ni2+ stabilization strategy, demonstrate a specific capacitance of 1184 mF cm-2, along with an energy density of 236.75 µWh cm-2 (power density of 0.14 mW cm-2). This approach introduces a new direction for the synthesis of highly conductive nano-MOF composites
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|a Journal Article
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|a 3D‐printed
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|a hollow
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|a micro‐supercapacitors
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|a nano‐MOF composites
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|a transition metal phosphide
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|a Gu, Shunyu
|e verfasserin
|4 aut
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|a Lu, Yibo
|e verfasserin
|4 aut
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|a Zhang, Guangxun
|e verfasserin
|4 aut
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|a Li, Bing
|e verfasserin
|4 aut
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|a Dou, Fei
|e verfasserin
|4 aut
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|a Cao, Shuai
|e verfasserin
|4 aut
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|a Li, Qian
|e verfasserin
|4 aut
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|a Sun, Yangyang
|e verfasserin
|4 aut
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|a Shakouri, Mohsen
|e verfasserin
|4 aut
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| 700 |
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|a Pang, Huan
|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 36(2024), 29 vom: 21. Juli, Seite e2401856
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:36
|g year:2024
|g number:29
|g day:21
|g month:07
|g pages:e2401856
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|u http://dx.doi.org/10.1002/adma.202401856
|3 Volltext
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