Fig. 1 The elaborate structure, components, and actuation mechanism of the MXene-cellulose–based actuator. The elaborate structure, components, and actuation.

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Presentation transcript:

Fig. 1 The elaborate structure, components, and actuation mechanism of the MXene-cellulose–based actuator. The elaborate structure, components, and actuation mechanism of the MXene-cellulose–based actuator. (A) Photograph of a natural leaf. (B) Schematic diagram of a leaf structure. (C) Schematic diagram of the MXCC/PC bilayer-structured actuator, which is composed of MXCC and a PC filter membrane. (D) Actuation mechanism of the MXCC/PC bilayer-structured actuator. Macroscopic and microcosmic (involving H bonds) structure changes of the MXCC/PC bilayer-structured actuator in response to hygroscopic and thermal stimuli simultaneously (both hygroscopic and thermal actuation processes are controlled by electrical and NIR light actuation). Scanning electron microscopy images of the MXCC (E) and the PC filter membrane (F). Contact angle measurement of the MXCC (G) and PC filter membrane (H). (I) Transmission electron microscopy image of the 2D MXene nanosheet (inset: SAED pattern). Guofa Cai et al. Sci Adv 2019;5:eaaw7956 Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).