Effects of ionic liquid on the hydroxylpropylmethyl cellulose (HPMC) solid polymer electrolyte

Chong, Mee Yoke; Liew, Chiam–Wen; Numan, Arshid; Yugal, K.; Ramesh, K.; Ng, H.M.; Chong, Tet Vui

doi:10.1007/s11581-016-1768-0

Cited by 37 publications

(11 citation statements)

References 33 publications

(51 reference statements)

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“…The shorter contact period for ions and electrodes to full the charge and discharge process at higher scan rates resulted in a lower amount of stored energy. A different situation occurred during lower scan rates where the ions have ample time to be absorbed on the electrolyte surfaces, hence the amount of energy stored is higher [ 104 , 105 ]. The lesser energy loss at lower scan rates resulted in a high amount of charge to be stored [ 106 ].…”

Section: Resultsmentioning

confidence: 99%

Structural, Electrical and Electrochemical Properties of Glycerolized Biopolymers Based on Chitosan (CS): Methylcellulose (MC) for Energy Storage Application

et al. 2021

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In this work, a pair of biopolymer materials has been used to prepare high ion-conducting electrolytes for energy storage application (ESA). The chitosan:methylcellulose (CS:MC) blend was selected as a host for the ammonium thiocyanate NH4SCN dopant salt. Three different concentrations of glycerol was successfully incorporated as a plasticizer into the CS–MC–NH4SCN electrolyte system. The structural, electrical, and ion transport properties were investigated. The highest conductivity of 2.29 × 10−4 S cm−1 is recorded for the electrolyte incorporated 42 wt.% of plasticizer. The complexation and interaction of polymer electrolyte components are studied using the FTIR spectra. The deconvolution (DVN) of FTIR peaks as a sensitive method was used to calculate ion transport parameters. The percentage of free ions is found to influence the transport parameters of number density (n), ionic mobility (µ), and diffusion coefficient (D). All electrolytes in this work obey the non-Debye behavior. The highest conductivity electrolyte exhibits the dominancy of ions, where the ionic transference number, tion value of (0.976) is near to infinity with a voltage of breakdown of 2.11 V. The fabricated electrochemical double-layer capacitor (EDLC) achieves the highest specific capacitance, Cs of 98.08 F/g at 10 mV/s by using the cyclic voltammetry (CV) technique.

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Section: Resultsmentioning

confidence: 99%

Structural, Electrical and Electrochemical Properties of Glycerolized Biopolymers Based on Chitosan (CS): Methylcellulose (MC) for Energy Storage Application

et al. 2021

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“…[ 129 ] Due to the hydrophobic character of HPMC and low conductivity, HPMC combined with [BMIM][Tfo] allows improving its ionic conductivity. [ 130 ] The addition of ILs decreased the degree of crystallinity of the electrolyte while enhancing the ionic conductivity up to 2.36 × 10 −4 S cm −1 , indicating that the incorporation of IL enhances polymer chain mobility and favors the conduction of ions. [ 130 ]…”

Section: Ionic Liquid‐based Polymer Composites and Their Applicationsmentioning

confidence: 99%

“…[ 130 ] The addition of ILs decreased the degree of crystallinity of the electrolyte while enhancing the ionic conductivity up to 2.36 × 10 −4 S cm −1 , indicating that the incorporation of IL enhances polymer chain mobility and favors the conduction of ions. [ 130 ]…”

Section: Ionic Liquid‐based Polymer Composites and Their Applicationsmentioning

confidence: 99%

Ionic Liquid–Polymer Composites: A New Platform for Multifunctional Applications

Correia

Fernandes

Martins

et al. 2020

Adv Funct Materials

220

201

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Ionic liquids (ILs) have emerged as a novel class of chemical compounds for the development of advanced (multi)functional materials with outstanding potential in applications of several areas due to their unique properties and functionalities. The combination of ILs with polymers, in a composite, allows for developing smart materials, which synergistically combine the features of specific polymers and ILs. Moreover, ILs can be extensively modified by the incorporation of functional groups with specific properties into the cation, anion, or both. Thus, it is possible to tune the IL, the polymer, or both to obtain a broad spectrum of multifunctional composites and address the specific requirements of many applications. This work focusses on advanced materials and strategies concerning ILs and polymers for the development of smart IL/polymer‐based materials for applications including responsive and sensitive sensors, actuators, environment, batteries, fuel cells, and biomedical applications.

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“…5,10 The length of the side alkyl chain, as well as the symmetry of ILs, are also investigated in a number of other scientific areas. 11−13 Over the past few years, ILs have been increasingly demonstrated to serve as excellent media for cellulose dissolution, 5,14 which also allows for the chemical modification of cellulose with high degrees of substitution (DS), 15,16 the pretreatment of biomass for the subsequent enzymatic conversion into sugars or ethanol, 17 and the development of various cellulose-based materials such as cellulose films, 18 solid polymer electrolytes, 19 and drug carriers. 20 Nonetheless, the strong association between cations and anions makes ILs a highly viscous medium, 21 leading to slow and high dissolution temperatures for cellulose in ILs.…”

Section: ■ Introductionmentioning

confidence: 99%

Dissolution of Cellulose in Ionic Liquid–DMSO Mixtures: Roles of DMSO/IL Ratio and the Cation Alkyl Chain Length

Ren

Wang

et al. 2021

ACS Omega

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The dissolution behavior of cellulose in the mixtures of dimethyl sulfoxide (DMSO) and different ionic liquids (ILs) at 25 °C was studied. High solubility of cellulose was reached in the mixtures of ILs and DMSO at mole fractions of 1:2, 1:2, and 1:1 for 1-butyl-3-methylimidazolium acetate, 1-propyl-3-methylimidazolium acetate, and 1-ethyl-3-methylimidazolium acetate, respectively. At high DMSO/IL molar ratios (10:1−2:1), a longer alkyl chain of the IL cation led to higher cellulose solubility. However, shorter cation alkyl chains favored cellulose dissolution at 1:1. Rheological, Fourier transform infrared spectroscopy (FTIR), and nuclear magnetic resonance (NMR) measurements were used to understand cellulose dissolution. It was found out that the increase of the DMSO ratio in binary mixtures caused higher cellulose solubility by decreasing the viscosity of systems. For cations with longer alkyl chains, stronger interaction between the IL and cellulose and higher viscosity of DMSO/IL mixtures were observed. The new knowledge obtained here could be useful to the development of cost-effective solvent systems for biopolymers.

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Effects of ionic liquid on the hydroxylpropylmethyl cellulose (HPMC) solid polymer electrolyte

Cited by 37 publications

References 33 publications

Structural, Electrical and Electrochemical Properties of Glycerolized Biopolymers Based on Chitosan (CS): Methylcellulose (MC) for Energy Storage Application

Structural, Electrical and Electrochemical Properties of Glycerolized Biopolymers Based on Chitosan (CS): Methylcellulose (MC) for Energy Storage Application

Ionic Liquid–Polymer Composites: A New Platform for Multifunctional Applications

Dissolution of Cellulose in Ionic Liquid–DMSO Mixtures: Roles of DMSO/IL Ratio and the Cation Alkyl Chain Length

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