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231226s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202307045
|2 doi
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|a eng
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| 100 |
1 |
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|a Chen, Shaohua
|e verfasserin
|4 aut
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| 245 |
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|a Functionalized MXene Films with Substantially Improved Low-Voltage Actuation
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|c 2024
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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
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|a Date Revised 02.03.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.
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|a Ti3 C2 Tx MXene film is promising for low-voltage electrochemical actuators (ECAs) due to its excellent electrical conductivity, volumetric capacitance, and mechanical properties. However, its in-plane actuation is limited to little intralayer strain of MXene sheets under polarization. Here it is demonstrated that a simple tetrabutylammonium (TBA) functionalization of MXene improves the in-plane actuation strain by 337% and also enhances the mechanical property and stability in air and the electrolyte. Various in situ characterizations reveal that the improved actuation is ascribed to the co-insertion/desertion of TBA and Li ions into/from MXene interlayer galleries and inter-edge gaps that causes a large in-plane sliding of MXene sheets under negative/positive polarizations. The assembled bending actuator has a high strength and modulus and generates a peak-to-peak strain difference of 0.771% and a blocking force up to 51.5 times its own weight under 1 V. The designed soft robotic tweezer can grasp an object under 1 V and hold it firmly under 0 V. The novel sheet sliding mechanism resembling the filament sliding theory in skeletal muscles may inspire the design of high-performance actuators with other nanomaterials
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|a Journal Article
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|a MXene
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| 650 |
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4 |
|a artificial muscles
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| 650 |
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4 |
|a ionic actuators
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| 650 |
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|a liquid cell TEM
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| 650 |
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|a tetrabutylammonium
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| 700 |
1 |
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|a Tan, Shu Fen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Singh, Harpreet
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Liang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Etienne, Mathieu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lee, Pooi See
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 9 vom: 26. März, Seite e2307045
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
1 |
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|g volume:36
|g year:2024
|g number:9
|g day:26
|g month:03
|g pages:e2307045
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202307045
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