- Contribution of stilbene-imine additives on the structural, ionic conductivity performance and theoretical evaluation on CMC-based biopolymer electrolytes
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New solid biopolymer electrolytes (SBEs) were prepared by integrating stilbene-imine derivatives bearing vinylene (–CH[dbnd]CH–) and azomethine (–CH[dbnd]N–) as additives in carboxymethyl cellulose (CMC) based electrolyte. The investigation on their spectroscopic and theoretical assessments were conducted to alter the energy level in improving the structural and ionic conductivity performance. The simulated results from frontier molecular orbitals (FMO) and Mulliken-charge analysis revealed that -CF3 and -NO2 substituents significantly reduce the HOMO-LUMO gap up to 0.68 eV. The highest ionic conductivity of SBEs achieved at ambient temperature was ~8 × 10?3 Scm-1 upon the addition of additive, obeying an Arrhenius model with reciprocal of temperature (303 K–373 K). The coordination interaction of C–O bond and CH[dbnd]N band facilitated the dissociation of more cation (H+) of NH4Cl which permits alternative route for H+ to hop into coordinating site in CMC. The outcomes are ideal in the development of electrochemical devices.
- Isa, M. I. N,Khairul, Wan M.,Rahamathullah, Rafizah
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- A stilbene compound of preparation method
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The invention provides a preparation method of toluylene compounds. A deep eutectic solvent formed by use of choline chloride and amide is taken as a reaction solvent, and substituted or unsubstituted diethyl benzylphosphonate and substituted or unsubstituted benzaldehyde are taken as raw materials to have a Wittig-Horner reaction under catalysis of an alkali, and consequently, the toluylene compounds can be obtained. According to the preparation method, the deep eutectic solvent formed by use of choline chloride and amide is taken as the reaction solvent, and the solvent is suitable for the synthesis of the toluylene compounds; the preparation method has the advantages of good universality, mild reaction conditions, convenient operations, low cost, environmental friendliness and the like, and is suitable for industrial production.
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Paragraph 0074-0080
(2017/05/04)
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