Multifunctional Ionogels Incorporated with Lanthanide (Eu3+, Tb3+) Complexes Covalently Modified Multi-Walled Carbon Nanotubes

Abstract

Ionogels refer to an emerging composite material made from the confinement of ionic liquids within some specific cross-linked network matrices. They have potential applications in areas such as electrochemical and optical-electric materials. Incorporation of lanthanide (Eu3+, Tb3+) complexes covalently functionalized multi-walled carbon nanotubes (MWCNTs) in ionogels provide new ideas to design and synthesize novel luminescent hybrid materials that have excellent characteristics of luminescence and ionic conductivity. Here, the multifunctional ionogels were synthesized by confining an ionic liquid and the rare earth functionalized MWCNTs in the cross-linked polymethyl methacrylate (PMMA) networks, resulting in a novel optical/electric multifunctional hybrid material. The SEM images and digital photographs suggest that the lanthanide functionalized MWCNTs are evenly dispersed in the hybrid matrices, thus leading to a certain transparency bulky gel. The resulting ionogels exhibit certain viscosity and flexibility, and display an intense red/green emission under UV-light irradiation. The intrinsic conductibility of the embedded ionic liquids and carbon nanotubes in conjunction with the outstanding photoluminescent properties of lanthanide complexes makes the soft hybrid gels a material with great potential and valuable application in the field of optical-electric materials.

Novel Chemical Cross-Linked Ionogel Based on Acrylate Terminated Hyperbranched Polymer with Superior Ionic Conductivity for High Performance Lithium-Ion Batteries

“…Recent years have witnessed a great deal of attention on the development of gel polymer electrolytes (GPE) in many various electrochemical devices [1,2,3]. Commonly, GPE is composed of host polymers and conducting salts dissolved in organic solvents [4,5]. However, some disadvantages include low ionic conductivities and narrow electrochemical windows, especially, the flammability and toxicity of the volatile solvents limits its application [6,7,8].…”

The Role of Interfaces in Ionic Liquid‐Based Hybrid Materials (Ionogels) for Sensing and Energy Applications

“…Li further explored the application of inorganic ionogel by dispersing CNTs in ILs in optoelectronics and electrochemistry. [ 176 ] Li synthesized ionogel by confining IL with MWCNTs in a cross‐linked PMMA network, which results in electric multifunctional hybrid materials. [ 176 ] It was also demonstrated that the incorporation of CNTs could improve the ionic conductivity of ionogel from 3.7 × 10 −4 to 8.23 × 10 −2 S cm −1 .…”

“…[ 176 ] Li synthesized ionogel by confining IL with MWCNTs in a cross‐linked PMMA network, which results in electric multifunctional hybrid materials. [ 176 ] It was also demonstrated that the incorporation of CNTs could improve the ionic conductivity of ionogel from 3.7 × 10 −4 to 8.23 × 10 −2 S cm −1 . [ 177 ] The percolation threshold was attained at 0.4 wt%.…”

Fluorescent SiO2@Tb3+(PET-TEG)3Phen Hybrids as Nucleating Additive for Enhancement of Crystallinity of PET

“…In this work, the rare-earth doped hybrid polymer of SiO 2 @Tb 3+ (PET-tetraglycol (TEG)) 3 Phen was synthesized through the multi-step polymerization process [19]. Successful coating of PET-TEG polymeric blocks and complexation of Tb 3+ were clearly identified by scanning electron microscopy (SEM) [20], X-ray photoelectron spectroscopy (XPS), and fluorescent spectrometer. The SiO 2 @Tb 3+ (PET-TEG) 3 Phen hybrids were used as nucleating reagents for PET crystallization.…”