One‐step electrochemical preparation of ternary phthalocyanine/acid‐activated multiwalled carbon nanotube/polypyrrole‐based electrodes and their supercapacitor applications

Gördük, Özge; Gördük, Semih; Gençten, Metin; Şahin, Mutlu; Şahin, Yücel

doi:10.1002/er.5634

Cited by 54 publications

(35 citation statements)

References 58 publications

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“…Electrochemical impedance spectroscopy is known to be among the methods used to study the capacitive and surface properties of the constructed sensor [25, 26, 27]. 2.5 mmol L −1 [Fe(CN) 6 ] 3−/4− +0.1 mol L −1 KCl solution was used during EIS measurements.…”

Section: Resultsmentioning

confidence: 99%

“…We can also say that the decrease in peak current can be attributed to the forming of negatively charged functional groups on the surface of the P-doped/PGE and the electrostatic repulsion with Fe(CN) 6 3À /4À groups. Electrochemical impedance spectroscopy is known to be among the methods used to study the capacitive and surface properties of the constructed sensor [25,26,27]. 2.5 mmol L À 1 [Fe(CN) 6 ] 3À /4À + 0.1 mol L À 1 KCl solution was used during EIS measurements.…”

Section: Characterization and Morphology Of The P-doped/pgementioning

confidence: 99%

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Cost‐effective and Facile Production of a Phosphorus‐doped Graphite Electrode for the Electrochemical Determination of Pyridoxine

2021

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In this study; a sensitive, selective, and simple electrochemical sensor was developed to determine low concentration pyridoxine (Py) using a phosphorus‐doped pencil graphite electrode (P‐doped/PGE). Electrode modification was implemented using the chronoamperometry method at +2.0 V constant potential and 100 seconds in 0.1 mol L−1 H3PO4 supporting electrolyte solution. The characterization processes of the P‐doped/PGE were carried out using electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), X‐ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FESEM), energy‐dispersive X‐ray spectroscopy (EDX), and atomic force microscope (AFM) methods. In the concentration study, using the differential pulse voltammetry (DPV) method, a linear calibration plot was acquired in the concentration range of 0.5 to 300 μmol L−1 Py. The limit of quantification (LOQ) and limit of detection (LOD) of the developed method were calculated as 0.219 μmol L−1 and 0.0656 μmol L−1, respectively. Detection of Py has been successfully performed on the P‐doped/PGE in the beverage samples. As a result, the method developed has been shown to have fast, low cost, and simple for the sensitive and selective detection of Py as an effective electrode.

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Section: Resultsmentioning

confidence: 99%

Section: Characterization and Morphology Of The P-doped/pgementioning

confidence: 99%

Cost‐effective and Facile Production of a Phosphorus‐doped Graphite Electrode for the Electrochemical Determination of Pyridoxine

2021

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“…In this context, the research on systems that store energy in chemical forms, such as rechargeable batteries (lead-acid batteries, redox ow batteries, lithium (Li)-ion batteries) and supercapacitors, has continues at an incredible pace. [4][5][6][7][8][9][10][11][12] Since lithium is the lightest metal, it is an extremely suitable candidate for use in rechargeable battery applications. This metal has been extensively researched for nearly half a century, and different Li-ion batteries with positive or negative electrodes consisting of lithium or lithium-containing compounds have been synthesized.…”

Section: Introductionmentioning

confidence: 99%

Production of chlorine-containing functional group doped graphene powders using Yucel's method as anode materials for Li-ion batteries

et al. 2021

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“…Due to the electrical energy can be transformed to chemical energy and stored in the battery, so secondary batteries are also commonly known as energy storage devices 25 . Supercapacitors, which known as new generation energy storage systems, are developed an alternative to battery systems 26‐29 . However, their energy density is low compared to batteries 30 .…”

Section: Introductionmentioning

confidence: 99%

A novel electrolytes for redox flow batteries: Cerium and chromium couples in aqueous system

et al. 2021

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Summary In this study, Ce/Cr redox flow battery system (RFB), which had redox pair in different oxidation states, was performed in aqueous acidic medium for the first time in the literature. At Ce/Cr RFB system, optimization of acid (H2SO4), and active ion (Cr(III) and Ce(III) ions) concentration were executed by using differential pulse voltammetry and electrochemical impedance spectroscopy methods. The mass transfer type for positive electrolyte was determined by using of cyclic voltammetric method. Both chemical stability and changes on surface morphology of pencil graphite electrode were analyzed with scanning electron microscope. Cyclic charge/discharge test was performed for this novel electrolyte composition. Cell potential and the highest discharge capacity values were also determined as 1.52 V and 21.2 mAh L−1, respectively, at 0.8 mA cm−2 charge current density and 0.2 mA cm−2 discharge current density. Obtained data in this work can open a new perspective for the using of the alternative redox couples for the redox flow batteries.

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One‐step electrochemical preparation of ternary phthalocyanine/acid‐activated multiwalled carbon nanotube/polypyrrole‐based electrodes and their supercapacitor applications

Cited by 54 publications

References 58 publications

Cost‐effective and Facile Production of a Phosphorus‐doped Graphite Electrode for the Electrochemical Determination of Pyridoxine

Cost‐effective and Facile Production of a Phosphorus‐doped Graphite Electrode for the Electrochemical Determination of Pyridoxine

Production of chlorine-containing functional group doped graphene powders using Yucel's method as anode materials for Li-ion batteries

A novel electrolytes for redox flow batteries: Cerium and chromium couples in aqueous system

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