Ionic conductive gels based on deep eutectic solvents

IF 4.5 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

International Journal of Smart and Nano Materials Pub Date : 2021-07-03 DOI:10.1080/19475411.2021.1972053

Cuiping Liu, Jinfan Qi, Bingbing He, Huangchu Zhang, Jie Ju, Xi Yao

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引用次数: 9

Abstract

ABSTRACT Ionic conductive gels are promising soft conductors for stretchable and flexible electronics. Unfortunately, the basic requirements for an ideal ionic conductive gel, including environmental and chemical stability as well as low toxicity and low cost do not usually coincide in one material. Here we report an ionic conductive gel containing deep eutectic solvents (DES), which are specialized ionic liquids composed of propylene glycol (PG, hydrogen bonding donor) and various salts. In experiments, the DES-gel loses about 10% of the original weight in dry air (5– 9% relative humidity) for 7 days and its conductivity remains unaltered. Comparing to regular salt-containing hydrogels, it exhibits exceptional resistance to metal corrosion. We demonstrate the advantage of DES-gels as the ionic electrode in a flexible and stretchable electroluminescent device, especially in cold environment (−20°C). Through this study, we discover a new candidate for cheap and safe soft ionic conductors with excellent environmental and chemical stability. Graphical abstract

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基于深共晶溶剂的离子导电凝胶

摘要离子导电凝胶是一种很有前途的可拉伸柔性电子软导体。不幸的是，理想离子导电凝胶的基本要求，包括环境和化学稳定性以及低毒性和低成本，通常在一种材料中并不一致。本文报道了一种含有深共晶溶剂（DES）的离子导电凝胶，DES是由丙二醇（PG，氢键供体）和各种盐组成的特殊离子液体。在实验中，DES凝胶在干燥空气（5-9%的相对湿度）中7天内损失约10%的原始重量，其电导率保持不变。与普通含盐水凝胶相比，它表现出非凡的抗金属腐蚀性。我们证明了DES凝胶作为柔性和可拉伸电致发光器件中的离子电极的优势，特别是在寒冷环境（−20°C）中。通过这项研究，我们发现了一种新的廉价、安全的软离子导体，具有优异的环境和化学稳定性。图形摘要

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来源期刊

International Journal of Smart and Nano Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

6.30

自引率

5.10%

发文量

审稿时长

11 weeks

期刊介绍： The central aim of International Journal of Smart and Nano Materials is to publish original results, critical reviews, technical discussion, and book reviews related to this compelling research field: smart and nano materials, and their applications. The papers published in this journal will provide cutting edge information and instructive research guidance, encouraging more scientists to make their contribution to this dynamic research field.