Luminescent Ionogels with Excellent Transparency, High Mechanical Strength, and High Conductivity.

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ID: 263925
2020
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Abstract
The paper describes a new kind of ionogel with both good mechanical strength and high conductivity synthesized by confining the ionic liquid (IL) 1-butyl-3-methylimidazolium bis(trifluoromethane sulfonyl)imide ([Bmim][NTf]) within an organic-inorganic hybrid host. The organic-inorganic host network was synthesized by the reaction of methyltrimethoxysilane (MTMS), tetraethoxysilane (TEOS), and methyl methacrylate (MMA) in the presence of a coupling agent, offering the good mechanical strength and rapid shape recovery of the final products. The silane coupling agent 3-methacryloxypropyltrimethoxysilane (KH-570) plays an important role in improving the mechanical strength of the inorganic-organic hybrid, because it covalently connected the organic component MMA and the inorganic component SiO. Both the thermal stability and mechanical strength of the ionogel significantly increased by the addition of IL. The immobilization of [Bmim][NTf] within the ionogel provided the final ionogel with an ionic conductivity as high as ca. 0.04 S cm at 50 °C. Moreover, the hybrid ionogel can be modified with organosilica-modified carbon dots within the network to yield a transparent and flexible ionogel with strong excitation-dependent emission between 400 and 800 nm. The approach is, therefore, a blueprint for the construction of next-generation multifunctional ionogels.
Reference Key
tao2020luminescentnanomaterials Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Tao, Lumi;Liu, Yuchuan;Wu, Dan;Wei, Qiao-Hua;Taubert, Andreas;Xie, Zailai;
Journal Nanomaterials
Year 2020
DOI
E2521
URL
Keywords
ionic liquid carbon dots luminescence mechanical strength ionogel organic–inorganic hybrid

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