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具有卓越性能的自立式纤维素纳米纤维/聚（3,4-乙撑二氧噻吩）：聚（4-苯乙烯磺酸盐）/离子液体致动器

Self-standing cellulose nanofiber/poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate)/ionic liquid actuators with superior performance.

作者信息

Terasawa Naohiro, Asaka Kinji

机构信息

Inorganic Functional Material Research Institute, National Institute of Advanced Industrial Science and Technology (AIST) 1-8-31 Midorigaoka Ikeda Osaka 563-8577 Japan

出版信息

RSC Adv. 2018 Sep 25;8(58):33149-33155. doi: 10.1039/c8ra06981f. eCollection 2018 Sep 24.

DOI:10.1039/c8ra06981f
PMID:35548137
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9086323/
Abstract

This paper describes new actuators with cellulose nanofiber/poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate)/ionic liquid (CNF/PEDOT:PSS/IL) structures. Devices containing these structures exhibit higher strain and maximum generated stress than those based on only PEDOT:PSS/IL. The new actuator system contains an electrode, which is an electrochemical capacitor, and which consists of both a faradaic capacitor (FC) and a small electric double-layer capacitor (EDLC), , PEDOT:PSS. This combined capacitor plays the role of an FC and a base polymer, and the CNF skeleton is used in the place of carbon nanotubes (CNTs). This device therefore functions differently from traditional CNT/PVdF-HFP/IL actuators, which are only used as EDLC units and from PEDOT:PSS/vapor-grown carbon nanofibers (VGCF)/IL actuators, which are used as hybrid (FC and EDLC) units. The developed films are novel, robust, and flexible, and demonstrate potential as actuator materials for wearable energy-conversion devices. A double-layer charging kinetic model, which is similar to that previously proposed for PEDOT:PSS/CNT/IL actuators, is developed to explain the oxidation and reduction of PEDOT:PSS. This model successfully simulates the frequency-dependent displacement response of actuators.

摘要

本文描述了具有纤维素纳米纤维/聚（3,4 - 乙烯二氧噻吩）：聚（4 - 苯乙烯磺酸盐）/离子液体（CNF/PEDOT:PSS/IL）结构的新型致动器。包含这些结构的器件比仅基于PEDOT:PSS/IL的器件表现出更高的应变和最大产生应力。新的致动器系统包含一个电极，它是一个电化学电容器，由一个法拉第电容器（FC）和一个小型双电层电容器（EDLC）以及PEDOT:PSS组成。这种组合电容器起到FC和基础聚合物的作用，并且CNF骨架用于替代碳纳米管（CNT）。因此，该器件的功能不同于传统的仅用作EDLC单元且仅由PEDOT:PSS/气相生长碳纳米纤维（VGCF）/IL致动器组成的CNT/PVdF - HFP/IL致动器，也不同于用作混合（FC和EDLC）单元的PEDOT:PSS/气相生长碳纳米纤维（VGCF）/IL致动器。所开发的薄膜新颖、坚固且灵活，并展示出作为可穿戴能量转换设备的致动器材料的潜力。为了解释PEDOT:PSS的氧化和还原，开发了一种类似于先前为PEDOT:PSS/CNT/IL致动器提出的双层充电动力学模型。该模型成功地模拟了致动器的频率相关位移响应。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/58f3/9086323/4657cdac8f1f/c8ra06981f-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/58f3/9086323/1a193333fca1/c8ra06981f-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/58f3/9086323/2c3589ed15ae/c8ra06981f-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/58f3/9086323/103f762612c5/c8ra06981f-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/58f3/9086323/3b1f7e5a6031/c8ra06981f-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/58f3/9086323/4657cdac8f1f/c8ra06981f-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/58f3/9086323/1a193333fca1/c8ra06981f-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/58f3/9086323/2c3589ed15ae/c8ra06981f-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/58f3/9086323/103f762612c5/c8ra06981f-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/58f3/9086323/3b1f7e5a6031/c8ra06981f-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/58f3/9086323/4657cdac8f1f/c8ra06981f-f5.jpg

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