Mannu, A.; Cardano, F.; Baldino, S.; Fin, A. Behavior of Ternary Mixtures of Hydrogen Bond Acceptors and Donors in Terms of Band Gap Energies. Materials2021, 14, 3418.
Mannu, A.; Cardano, F.; Baldino, S.; Fin, A. Behavior of Ternary Mixtures of Hydrogen Bond Acceptors and Donors in Terms of Band Gap Energies. Materials 2021, 14, 3418.
Mannu, A.; Cardano, F.; Baldino, S.; Fin, A. Behavior of Ternary Mixtures of Hydrogen Bond Acceptors and Donors in Terms of Band Gap Energies. Materials2021, 14, 3418.
Mannu, A.; Cardano, F.; Baldino, S.; Fin, A. Behavior of Ternary Mixtures of Hydrogen Bond Acceptors and Donors in Terms of Band Gap Energies. Materials 2021, 14, 3418.
Abstract
Three ternary mixtures composed by choline chloride (ChCl), ethylene glycol (EG) and a second hydrogen bond donor (HBD) as ethanol (A), 2-propanol (B), and glycerol (C) were studied in terms of composition related to the band gap energy (BGE). A Design of Experiments (DoE) approach, and in particular a Simple Lattice three-components design, was employed for determining the variation of the BGE upon the composition of each system. UV-VIS analysis and subsequent Tauc plot methodology provided the data requested from the DoE and multivariate statistical analysis revealed a drop of the BGE in correspondence to specific binary compositions for systems A and B. In particular, a BGE of 3.85 eV was registered for the mixtures ChCl/EtOH (1:1), and ChCl/2-propanol (1:1), which represents one of the lowest values ever observed for these systems.
Keywords
eutectic mixtures; hydrogen bond acceptor; hydrogen bond donor; design of experiments; Tauc plot; band gap energy
Subject
CHEMISTRY, Analytical Chemistry
Copyright:
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