Deep eutectic solvents as effective electrolyte from potassium iodide and ethylene glycol exhibiting redox behavior for supercapacitor application

2022 ◽  
Vol 48 ◽  
pp. 103955
Author(s):  
Li Hua Xu ◽  
Di Wu ◽  
Yan Wu Zhu ◽  
Xiang Ying Chen ◽  
Zhong Jie Zhang
CrystEngComm ◽  
2021 ◽  
Author(s):  
Hajime Wagata ◽  
Ginji Harada ◽  
Eriko Nakashima ◽  
Motoki Asaga ◽  
Tomoaki Watanabe ◽  
...  

ZnO mesocrystals have been explored for various physical and chemical applications. In spite of effort by a number of researches, it is still difficult to grow specific crystal shapes in...


2018 ◽  
Vol 3 (44) ◽  
pp. 12582-12590 ◽  
Author(s):  
Kristina Zagajski Kučan ◽  
Marijana Perković ◽  
Karlo Cmrk ◽  
Dominik Načinović ◽  
Marko Rogošić

ACS Omega ◽  
2020 ◽  
Vol 5 (48) ◽  
pp. 31220-31226
Author(s):  
Jinxiao Dou ◽  
Yongqi Zhao ◽  
Hua Li ◽  
Jieping Wang ◽  
Arash Tahmasebi ◽  
...  

2016 ◽  
Vol 18 (3) ◽  
pp. 826-833 ◽  
Author(s):  
Xavier Marset ◽  
Juana M. Pérez ◽  
Diego J. Ramón

The synthesis of different tetrahydroisoquinolines using choline chloride : ethylene glycol as a deep eutectic solvent (DES) and copper(ii) oxide impregnated on magnetite as a catalyst has been accomplished successfully.


1980 ◽  
Vol 26 (1) ◽  
pp. 22-25 ◽  
Author(s):  
B C Shull ◽  
H Lees ◽  
P K Li

Abstract Oxyhemoglobin is the species of hemoglobin in erythrocyte hemolysates that inhibits the diazo reaction. Ferric hemoglobin derivatives and species with relatively low molecular mass do not interfere. Conversion of oxyhemoglobin to acid hematin under assay reaction conditions is associated with rapid destruction of bilirubin, which accounts for the diazo reaction error. The most probable mechanism for this destruction of bilirubin is an oxidative reaction involving H2O2, formed in the oxidation of hemoglobin, and acid hematin acting as a pseudoperoxidase. We could find no evidence for other mechanisms of interference such as spectral error or azobilirubin destruction. Addition of potassium iodide, 4.0 mmol/L final concentration in the reaction mixture, eliminates interference from hemoglobin added to give concentrations as great as 10 g/L. It also eliminated the effects of hemolysis in the method of Ertingshausen et al. (Clin. Chem. 19: 1366, 1973), in which ethylene glycol is used as the accelerator.


2020 ◽  
Vol 10 (19) ◽  
pp. 6794
Author(s):  
Vinayagam Sivabalan ◽  
Nurasyikin Hasnor ◽  
Bhajan Lal ◽  
Zamzila Kassim ◽  
Abdulhalim Shah Maulud

The thermodynamic gas hydrate suppression behavior of four Deep Eutectic Solvents (DESs) was evaluated in this paper. The mixtures of Hydrogen Bond Acceptors (HBA), Tetraethylammonium Acetate (TEAAC), and Tetraethylammonium Bromide (TEAB) with Hydrogen Bond Donors (HBD), Mono-Ethylene Glycol (MEG), and Glycerol were used to make the DES. The DESs were made at a 1:7 molar ratio for the combinations of TEAAC:MEG, TEAAC:Glycerol, TEAB:MEG, and TEAB:Glycerol. The Hydrate Liquid-Vapor Equilibrium (HLVE) data for CO2 were evaluated through the T-cycle method at different temperature (273.15–283.15 K) and pressure (2–4 MPa) conditions in the presence and absence of 5 wt % aqueous DES solutions. The inhibition effects showed by the DESs, including average suppression temperature (ΔŦ) and gas hydrate dissociation enthalpies (ΔHdiss), were also calculated. The average suppression temperature values of the DESs ranged between 0.4 and 2.4, with the highest inhibition to lowest inhibition order being TEAB:Glycerol > TEAB:MEG > TEAAC:Glycerol > TEAAC:MEG. A comparison of the DES with conventional Thermodynamic Hydrate Inhibitors (THIs) showed that studied Deep Eutectic Solvents had better gas hydrate inhibition. The results proved that DES has the potential to be one of the promising alternatives in gas hydrate inhibition.


2018 ◽  
Vol 6 (45) ◽  
pp. 22566-22579 ◽  
Author(s):  
Uma V. Ghorpade ◽  
Mahesh P. Suryawanshi ◽  
Seung Wook Shin ◽  
Jihun Kim ◽  
Soon Hyung Kang ◽  
...  

Deep eutectic solvents (DESs) based on choline chloride/ethylene glycol have been explored as synthetic media for Cu–Sb–S based colloidal quantum dots for unassisted solar water splitting.


Author(s):  
F.I. Danilov ◽  
◽  
Y.D. Rublova ◽  
V.S. Protsenko ◽  
◽  
...  

Adsorption of the components of deep eutectic solvent ethaline (ethylene glycol and choline chloride) on mercury electrode is investigated by electrocapillary measurements. It is determined that choline cations are mainly adsorbed on the negatively charged surface of mercury, while chloride anions are mainly adsorbed on the positively charged surface. The corresponding values of free energies of adsorption and interactions of adsorbate and solvent with metal are calculated and analyzed. An anomalous increase in both the apparent value of the adsorption at limiting coverage and the free energy of the interaction of the choline cation with mercury is observed in the transition from aqueous to ethylene glycol solutions, which is explained by the formation of complexes in a surface layer that exist in deep eutectic solvents and are capable of adsorbing on the electrode surface. The free energy of interaction with the mercury surface is higher than the energy of squeezing out from the volume of the solution onto its surface, which indicates the specific interaction of the adsorbate with mercury. A marked decrease in interfacial tension on both branches of the electrocapillary curve is observed when water is added to ethaline.


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