Abstract:The current study fabricated magnetic functional reduced graphene oxide (MFRGO) by relying on FeCl 4-magnetic anion confined to cationic 1-methyl imidazolium. Furthermore, for improving the electrochemical performance of conductive polymer, hybrid poly ortho aminophenol (POAP)/ MFRGO films have then been fabricated by POAP electropolymerization in the presence of MFRGO nanorods as active electrodes for electrochemical supercapacitors. Surface and electrochemical analyses have been used for characterization of … Show more
“…The Cs of 625 F/g was calculated from the discharge curves at 0.005 mA [32,33]. At corresponding current, the rate capability of the POAP/ Fe-BTC electrode was higher than POAP and other POAP composite [32][33][34][35][36] electrode. The cycling stability of an electrochemical device is one of the important factors for its practical application.…”
Section: Resultsmentioning
confidence: 99%
“…The Cs of 625 F/g was calculated from the discharge curves at 0.005 mA [32, 33]. At corresponding current, the rate capability of the POAP/ Fe-BTC electrode was higher than POAP and other POAP composite [32-36] electrode. Figure 8 Galvanostatic charge and discharge measurements of (a) POAP and POAP/ Fe- BTC electrode in 1.0 M HClO 4 solution at 0.005 mA,(b) different current for composite (0.005–0.01 mA) and(c) during 10 consecutive charge–discharge of composite film.…”
In the present study, Fe(II)-based MOF (Fe-BTC, BTC = 1,3,5-benzentricarboxylate) was synthesised via a chemical method and then synthesised hybrid polyorthoaminophenol (POAP)/Fe-BTC films by electropolymerisation of POAP in the presence of Fe-BTC to serve as the active electrode for the electrochemical storage device. The characterisation of Fe-BTC and POAP/ Fe-BTC composite film has been investigated by surface and electrochemical analysis. Benefitting from the intrinsic synergetic contributions from structural/compositional merits, the electrode delivers an impressive capacity of 625 F g −1 at 0.005 mA. This article introduces new nanocomposite materials for electrochemical pseudocapacitor by taking advantage of simple synthesis, high active surface area and stability in an aqueous electrolyte.
KEYWORDS
Electrochemical characterisations; electrodes; capacitors; MOF
Experimental
Reagent and materialsOrthoaminophenol, sodium hydroxide, perchloric acid, lithium perchlorate, H 3 BTC, FeCl 3 , sodium dodecyl sulfate and ethanol used in this work were Merck product of analytical grade and were used without further purification. All studies were carried out at 298 ± 2 K.
CharacterisationThe instrument used in the electrochemical performance test process is Ivium V21508, Vertex
“…The Cs of 625 F/g was calculated from the discharge curves at 0.005 mA [32,33]. At corresponding current, the rate capability of the POAP/ Fe-BTC electrode was higher than POAP and other POAP composite [32][33][34][35][36] electrode. The cycling stability of an electrochemical device is one of the important factors for its practical application.…”
Section: Resultsmentioning
confidence: 99%
“…The Cs of 625 F/g was calculated from the discharge curves at 0.005 mA [32, 33]. At corresponding current, the rate capability of the POAP/ Fe-BTC electrode was higher than POAP and other POAP composite [32-36] electrode. Figure 8 Galvanostatic charge and discharge measurements of (a) POAP and POAP/ Fe- BTC electrode in 1.0 M HClO 4 solution at 0.005 mA,(b) different current for composite (0.005–0.01 mA) and(c) during 10 consecutive charge–discharge of composite film.…”
In the present study, Fe(II)-based MOF (Fe-BTC, BTC = 1,3,5-benzentricarboxylate) was synthesised via a chemical method and then synthesised hybrid polyorthoaminophenol (POAP)/Fe-BTC films by electropolymerisation of POAP in the presence of Fe-BTC to serve as the active electrode for the electrochemical storage device. The characterisation of Fe-BTC and POAP/ Fe-BTC composite film has been investigated by surface and electrochemical analysis. Benefitting from the intrinsic synergetic contributions from structural/compositional merits, the electrode delivers an impressive capacity of 625 F g −1 at 0.005 mA. This article introduces new nanocomposite materials for electrochemical pseudocapacitor by taking advantage of simple synthesis, high active surface area and stability in an aqueous electrolyte.
KEYWORDS
Electrochemical characterisations; electrodes; capacitors; MOF
Experimental
Reagent and materialsOrthoaminophenol, sodium hydroxide, perchloric acid, lithium perchlorate, H 3 BTC, FeCl 3 , sodium dodecyl sulfate and ethanol used in this work were Merck product of analytical grade and were used without further purification. All studies were carried out at 298 ± 2 K.
CharacterisationThe instrument used in the electrochemical performance test process is Ivium V21508, Vertex
“…The electrochemical impedance spectroscopy (EIS) analysis has been accredited as one of the principal methods examining the fundamental behavior of electrode materials for SCs . In this work, the impedance of the POAP/CTS electrode was measured in the frequency range of 0.1 Hz to 100 kHz at open circuit potential with 5 mV ac perturbation (Figure ).…”
Section: Resultsmentioning
confidence: 99%
“…The electrochemical impedance spectroscopy (EIS) analysis has been accredited as one of the principal methods examining the fundamental behavior of electrode materials for SCs. [68][69][70][71][72][73][74][75][76] In this work, the impedance of the POAP/CTS electrode was measured in the frequency range of 0.1 Hz to 100 kHz at open circuit potential with 5 mV ac perturbation (Figure 8). The electrodes Nyquist plots consisted of a semicircular arc in the high-frequency section and a subvertical line in the low-frequency section.…”
Section: Electrosynthesis Of Poap/cts Composite Filmsmentioning
Significant electrochemical properties improvement of poly ortho aminophenol (POAP) as conductive polymer and simultaneously as active electrode of electrochemical supercapacitor through fabricated POAP composite film in the presence of biopolymer chitosan (CTS) with porous structure was obtained. Nanocomposite morphology and information about POAP‐CTS interaction in the synthesized thin films were examined via scanning electron microscope. The surface area that depends on the porosity morphology was examined by Brunauere‐Emmette‐Teller (BET) analysis. Accordingly, the BET surface area, mean pore diameters, and single point total pore volume were measured as 39.044 m2 g−1, 19.68 nm, and 0.192 cm3 g−1, respectively. Electrochemical measurements like galvanostatic charge‐discharge experiments, cyclic voltammetry, and electrochemical impedance spectroscopy were investigated to examine the performance of the electrosynthesized composite (POAP/CTS) film. And also, the specific charge obtained as 345 F/g for POAP/CTS. In this work, a new considerable efficient polymeric composite in electrochemical redox capacitors with considerable advantages including ease synthesis, high active surface area, and stability in an aqueous electrolyte was introduced. Analysis of the quantum theory of atoms‐in‐molecules results shows that the chitosan system can be categorized into n‐type‐like (electron density donor) and p‐type‐like (electron density acceptor) sections and thus the parallel (in xy/yx plan) and perpendicular (in xz/yz plan) intramolecular sections have different electronic behaviors/electro‐chemical characterizations in molecule.
This review investigates the synthesis and electrochemical performance of the electrode of the electrochemical energy storage (EES) devices obtained from peels and scraps of the citrus fruits. The EES devices include batteries, supercapacitors, and hybrid systems that have considerable value and various applications. The electrode is considered as the most important part of all EES devices. Tremendous efforts have been done to enhance the electrochemical energy storage electrode (EESE). The citrus fruits abundance leads to a decrease in their price and makes possible to use them as ingredients to fabricate EESE. Also, the electrochemical analyses determined that citrus fruits have considerable potential to use as the EESE. Using citrus fruits peels and scraps as biomass substances to prepare EESE leads to the electrodes which have low cost, environmentally friendly and appropriate electrochemical applications.
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