Electropolymerisation of Catalytically Active PEDOT from an Ionic Liquid on a Flexible Carbon Cloth Using a Sandwich Cell Configuration

ChemPlusChem ◽  
2014 ◽  
Vol 80 (1) ◽  
pp. 74-82 ◽  
Author(s):  
Muhammad E. Abdelhamid ◽  
Graeme A. Snook ◽  
Anthony P. O'Mullane
Keyword(s):  
Ionic Liquid ◽  
Carbon Cloth ◽  
Cell Configuration ◽  
Catalytically Active

1-Butyl-3-methylimidazolium cobalt tetracarbonyl [bmim][Co(CO)4]: a catalytically active organometallic ionic liquid

2001 ◽  
pp. 1862-1863 ◽  
Author(s):  
Richard J. C. Brown ◽  
Thomas Welton ◽  
Paul J. Dyson ◽  
David J. Ellis
Keyword(s):  
Ionic Liquid ◽  
Catalytically Active

Ionic liquid assisted electrochemical coating zinc nanoparticles on carbon cloth as lithium dendrite suppressing host

2020 ◽  
Vol 65 (13) ◽  
pp. 1094-1102 ◽  
Author(s):  
Yuhan Li ◽  
Yuankun Wang ◽  
Yuchuan Shi ◽  
Hu Wu ◽  
Jiacheng Zeng ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Carbon Cloth ◽  
Zinc Nanoparticles ◽  
Electrochemical Coating ◽  
Lithium Dendrite

Quantitative measurement of complex substances dissolved in an ionic liquid using IR spectroscopy and chemometrics

2017 ◽  
Vol 84 (1) ◽  
Author(s):  
Johannes Kiefer ◽  
Andreas Bösmann ◽  
Peter Wasserscheid
Keyword(s):  
Principal Component Analysis ◽  
Ionic Liquid ◽  
Principal Component Regression ◽  
Principal Component ◽  
Component Analysis ◽  
Least Squares Regression ◽  
Catalytically Active ◽  
Regression Techniques ◽  
Active Substances ◽  
Better Than

AbstractIn the past two decades, ionic liquids have found many applications as solvents for complex solutes. Prominent examples are the dissolution of biomass and carbohydrates as well as catalytically active substances. The chemical analysis of such solutions, however, is still a challenge due to the molecular complexity. In the present work, the use of infrared spectroscopy for quantifying the concentration of different solutes dissolved in an imidazolium-based ionic liquid is investigated. Binary solutions of glucose, cellubiose, and Wilkinson's catalyst in 1-ethyl-3-methylimidazolium acetate are studied as examples. For this purpose, different chemometric approaches (principal component analysis (PCA), partial least-squares regression (PLSR), and principal component regression (PCR)) for analyzing the spectra are tested. Principal component analysis was found to be suitable for classifying the different solutions. Both regression techniques were capable of deriving accurate concentration values. The performance of PLSR was slightly better than that of PCR for the same number of components.

scholarly journals Chitin and chitin-cellulose composite hydrogels prepared by ionic liquid-based process as the novel electrolytes for electrochemical capacitors

2021 ◽  
Author(s):  
Dawid Kasprzak ◽  
Maciej Galiński
Keyword(s):  
Ionic Liquid ◽  
Specific Capacitance ◽  
High Efficiency ◽  
Electrochemical Impedance ◽  
Electrochemical Techniques ◽  
Electrochemical Capacitors ◽  
Solution Technique ◽  
Electrochemical Performances ◽  
Carbon Cloth ◽  
Galvanostatic Charge

AbstractThis paper reports on the preparation and electrochemical performance of chitin- and chitin-cellulose-based hydrogel electrolytes. The materials were prepared by a casting solution technique using ionic liquid-based solvents. The method of chitin dissolution in ionic liquid with the assistance of dimethyl sulfoxide co-solvent was investigated. The obtained membranes were soaked with 1-M lithium sulfate aqueous solution. The prepared materials were preliminarily characterized in terms of structural and physicochemical properties. Further, the most promising biopolymer membranes were assembled with activated carbon cloth electrodes in symmetric electrochemical capacitor cells. The electrochemical performances of these devices were studied in a 2-electrode system by commonly known electrochemical techniques, such as cyclic voltammetry, galvanostatic charge/discharge, and electrochemical impedance spectroscopy. The devices operated at a maximum voltage of 0.8 V. All the investigated materials have shown high efficiency in terms of specific capacitance, power density, and cyclability. The studied capacitors exhibited specific capacitance values in the range of 92–98 F g−1, with excellent capacitance retention (ca. 97–98%) after 20,000 galvanostatic charge and discharge cycles. Taking into account the above information and the eco-friendly nature of the biopolymer, it appears that the prepared chitin- and chitin-cellulose-based hydrogel electrolytes can be promising components for green electrochemical capacitors.

Anode and cathode materials characterization for a microbial fuel cell in half cell configuration

2011 ◽  
Vol 63 (10) ◽  
pp. 2457-2461 ◽  
Author(s):  
Deepak Pant ◽  
Gilbert Van Bogaert ◽  
Christof Porto-Carrero ◽  
Ludo Diels ◽  
Karolien Vanbroekhoven
Keyword(s):  
Microbial Fuel Cells ◽  
Open Circuit ◽  
Carbon Cloth ◽  
Half Cell ◽  
Renewable Biomass ◽  
Cell Configuration ◽  
Wide Range ◽  
Materials Used ◽  
Complex Organic ◽  
Stable Current

Microbial fuel cells (MFCs) are novel bioelectrochemical devices for spontaneous conversion of biomass into electricity through the metabolic activity of the bacteria. Microbial production of electricity may become an important source of bioenergy in future because MFCs offer the possibility of extracting electric current from a wide range of soluble or dissolved complex organic wastes and renewable biomass. However, the materials used in these devices are still not economic and researchers use different materials as cathode and anode in MFCs. This results in variable performance which is difficult to compare. We tested several commercially available materials for their suitability as anode in an acetate fed MFC. Besides, a novel non-platinized activated carbon (AC) based, gas porous air cathode was also tested. Both the anode and cathode were tested in a half cell configuration. Carbon cloth, graphite cloth and dynamically stable anode (DSA) served as ideal anode material with carbon cloth and graphite mesh reaching the open circuit voltage (OCV) of acetate oxidation (−500 mV vs. Ag/AgCl). The effect of increasing concentration of acetate on anode OCV was also investigated and results showed that on increasing the acetate concentration from 10 mM to 40 mM has no adverse impact on the anodic activity towards electrochemical oxidation of acetate. The AC cathode showed stable current (−1.2 mA/cm2) over a period of 100 days.

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