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AbdelHamid AA, Elgamouz A, Kawde AN. Controlled electrochemical surface exfoliation of graphite pencil electrodes for high-performance supercapacitors. RSC Adv 2023; 13:21300-21312. [PMID: 37456541 PMCID: PMC10346469 DOI: 10.1039/d3ra03952h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 07/05/2023] [Indexed: 07/18/2023] Open
Abstract
A controlled surface exfoliation method for graphite pencil electrodes using an environmentally friendly, low cost and scalable electrochemical process is reported. A simple direct current power supply in a neutral medium is used for inducing graphene formation on the electrode surface in a controlled manner. The electrochemical properties of the surface exfoliated electrode are characterized, displaying a >300× increase in the electrochemical surface area and >50× decrease in the electrode resistance after exfoliation. The surface graphene layer is characterized using electron microscopy, Raman, infrared, X-ray photoelectron, and energy dispersive X-ray spectroscopies and X-ray diffractometry showing a fully exfoliated surface, formation of surface defects and mild surface graphene oxidation while maintaining an intact graphitic crystal structure. The surface exfoliated electrode is tested as a supercapacitor demonstrating more than 2 orders of magnitude improvement over non-exfoliated electrode in both 3-electrode and 2-electrode setups and achieving a high areal capacitance of ∼54 mF cm-2. The benign nature, low cost, scalability of our controlled surface exfoliation methodology, and its significant impact on the electrochemical properties of the electrode make it very promising for further investigation in various applications such as energy storage and conversion, sensors, and catalysis.
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Affiliation(s)
- Ayman A AbdelHamid
- Pure and Applied Chemistry Group, Department of Chemistry, College of Sciences, University of Sharjah P.O. Box 27272 Sharjah United Arab Emirates
| | - Abdelaziz Elgamouz
- Pure and Applied Chemistry Group, Department of Chemistry, College of Sciences, University of Sharjah P.O. Box 27272 Sharjah United Arab Emirates
| | - Abdel-Nasser Kawde
- Pure and Applied Chemistry Group, Department of Chemistry, College of Sciences, University of Sharjah P.O. Box 27272 Sharjah United Arab Emirates
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2
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Alves GF, de Faria LV, Lisboa TP, Matos MAC, Matos RC. Electrochemical exfoliation of graphite from pencil lead to graphene sheets: a feasible and cost-effective strategy to improve ciprofloxacin sensing. J APPL ELECTROCHEM 2022. [DOI: 10.1007/s10800-022-01755-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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3
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Investigation of supercapacitor properties of chlorine-containing functional groups doped graphene electrodes. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Kahraman Y, Gursu H, Arvas MB, Ersozoglu MG, Nofar M, Sarac AS, Sahin Y. Preparation of sulfur‐doped graphenes by Yucel's method and their corresponding polylactide‐based nanocomposites. J Appl Polym Sci 2022. [DOI: 10.1002/app.52828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yusuf Kahraman
- Metallurgical and Materials Engineering Department, Faculty of Chemical and Metallurgical Engineering Istanbul Technical University Istanbul Turkey
| | - Hurmus Gursu
- Science and Technology Application and Research Center Yildiz Technical University Istanbul Turkey
| | - Melih Besir Arvas
- Science and Technology Application and Research Center Yildiz Technical University Istanbul Turkey
| | - M. Giray Ersozoglu
- Polymer Science and Technology Istanbul Technical University Istanbul Turkey
| | - Mohammadreza Nofar
- Metallurgical and Materials Engineering Department, Faculty of Chemical and Metallurgical Engineering Istanbul Technical University Istanbul Turkey
- Polymer Science and Technology Istanbul Technical University Istanbul Turkey
| | - A. Sezai Sarac
- Polymer Science and Technology Istanbul Technical University Istanbul Turkey
- Nanoscience and Nanoengineering Istanbul Technical University Istanbul Turkey
| | - Yucel Sahin
- Faculty of Arts and Science, Department of Chemistry Yildiz Technical University Istanbul Turkey
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5
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Arvas MB, Gürsu H, Gencten M, Sahin Y. New Approach Synthesis of S, N Co‐Doped Graphenes for High‐Performance Supercapacitors. ChemistrySelect 2022. [DOI: 10.1002/slct.202200360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Melih Besir Arvas
- Department of Chemistry Faculty of Arts and Science Yildiz Technical University Istanbul 34220 Turkey
- Science and Technology Application and Research Center Yildiz Technical University Istanbul 34200 Turkey
| | - Hurmus Gürsu
- Department of Chemistry Faculty of Arts and Science Yildiz Technical University Istanbul 34220 Turkey
- Science and Technology Application and Research Center Yildiz Technical University Istanbul 34200 Turkey
| | - Metin Gencten
- Department of Metallurgy and Materials Engineering Faculty of Chemical and Metallurgical Engineering Yildiz Technical University 34220 Istanbul Turkey
| | - Yucel Sahin
- Department of Chemistry Faculty of Arts and Science Yildiz Technical University Istanbul 34220 Turkey
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ERSOZOGLU MG, Gursu H, Gumrukcu S, Sarac A, Sahin Y. SINGLE STEP ELECTROCHEMICAL SEMI‐EXFOLIATIATED S‐DOPED GRAPHENE‐LIKE STRUCTURES FROM COMMERCIAL CARBON FIBER AS EFFICIENT METAL‐FREE CATALYST FOR HYDROGEN EVOLUTION REACTION. ChemElectroChem 2021. [DOI: 10.1002/celc.202101455] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mehmet Giray ERSOZOGLU
- Istanbul Technical University: Istanbul Teknik Universitesi Polymer Science and Technology Maslak, Istanbul Istanbul TURKEY
| | - Hurmus Gursu
- Yildiz Technical University: Yildiz Teknik Universitesi Science and Technology Application and Research Center TURKEY
| | - Selin Gumrukcu
- Istanbul Technical University: Istanbul Teknik Universitesi Chemistry TURKEY
| | - A.Sezai Sarac
- Istanbul Technical University: Istanbul Teknik Universitesi Polymer Science and Technology TURKEY
| | - Yucel Sahin
- Yildiz Teknik Universitesi Chemistry Yildiz Technical UniversityFaculty of Art and SciencesDepartment of Chemistry 34210 İstanbul TURKEY
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Gursu H, Guner Y, Arvas MB, Dermenci KB, Savaci U, Gencten M, Turan S, Sahin Y. Production of chlorine-containing functional group doped graphene powders using Yucel's method as anode materials for Li-ion batteries. RSC Adv 2021; 11:40059-40071. [PMID: 35494157 PMCID: PMC9044658 DOI: 10.1039/d1ra07653a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 11/16/2021] [Indexed: 12/13/2022] Open
Abstract
In this study, the one-step electrochemical preparation of chlorine doped and chlorine-oxygen containing functional group doped graphene-based powders was carried out by Yucel's method, with the resultant materials used as anode materials for lithium (Li)-ion batteries. Cl atoms and ClO x (x = 2, 3 or 4) groups, confirmed by X-ray photoelectron spectroscopy analysis, were covalently doped into the graphene powder network to increase the defect density in the graphene framework and improve the electrochemical performance of Li-ion batteries. The microscopic properties of the Cl-doped graphene powder were investigated by scanning electron microscopy and transmission electron microscopy (TEM) analyses. TEM analysis showed that the one-layer thickness of the graphene was approximately 0.33 nm. Raman spectroscopy analysis was carried out to determine the defect density of the graphene structures. The G peak obtained in the Raman spectra is related to the formation of sp2 hybridized carbons in the graphene-based powders. The 2D peak seen in the spectra shows that the synthesized graphene-based powders have optically transparent structures. In addition, the number of sp2 hybridized carbon rings was calculated to be 22, 19, and 38 for the Cl-GP1, Cl-GP2, and Cl-GOP samples, respectively. As a result of the charge/discharge tests of the electrodes as anodes in Li-ion batteries, Cl-GP2 exhibits the best electrochemical performance of 493 mA h g-1 at a charge/discharge current density of 50 mA g-1.
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Affiliation(s)
- Hurmus Gursu
- Yildiz Technical University, Faculty of Art and Sciences, Department of Chemistry 34220 Istanbul Turkey +90 212 3834134 +90 212 3834411
| | - Yağmur Guner
- Pamukkale University, Department of Metallurgy and Materials Engineering Denizli 20160 Turkey
| | - Melih Besir Arvas
- Yildiz Technical University, Faculty of Art and Sciences, Department of Chemistry 34220 Istanbul Turkey +90 212 3834134 +90 212 3834411
| | - Kamil Burak Dermenci
- Eskişehir Technical University, Department of Materials Science and Engineering Eskişehir 26555 Turkey
| | - Umut Savaci
- Eskişehir Technical University, Department of Materials Science and Engineering Eskişehir 26555 Turkey
| | - Metin Gencten
- Yildiz Technical University, Faculty of Chemical and Metallurgical Engineering, Department of Metallurgy and Materials Engineering 34210 Istanbul Turkey
| | - Servet Turan
- Eskişehir Technical University, Department of Materials Science and Engineering Eskişehir 26555 Turkey
| | - Yucel Sahin
- Yildiz Technical University, Faculty of Art and Sciences, Department of Chemistry 34220 Istanbul Turkey +90 212 3834134 +90 212 3834411
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Yıldırım MA, Demirbilek M, Gürsu H, Şahin Y, Türkoğlu N. Manipulating cell behavior on a bacterial macro-polymer poly (3-hydroxybutyrate-co-3-hydroxyhexanoate) via tuning the S-doped graphene ratio. Int J Biol Macromol 2021; 182:2076-2086. [PMID: 34044031 DOI: 10.1016/j.ijbiomac.2021.05.099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 05/01/2021] [Accepted: 05/15/2021] [Indexed: 10/21/2022]
Abstract
Graphene is a material with various application potentials Graphene is a unique material with superiorities and has been applied in various fields for different purposes. Although studies on the utility of graphene oxide in the biomedical field are available, no evaluation has yet been done regarding the utility of sulfur doped (S-doped) graphene. The study focuses on the effect of blending the poly (3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx) membrane with sulfur heteroatom doped graphene and the evaluation of biological responses to S-doped graphene/PHBHHx. PHBHHx membranes were blended with 1%, 0.5%, 0.1% (w/v) S-doped graphene. The morphological (SEM and Microscopy), chemical (FTIR and Raman spectroscopy), and surface area (BET) characterizations of S-doped graphene/PHBHHx membranes were performed. The presence of S groups on the surface was determined with the EDS results. Besides, the swelling profile and biodegradation tendency of the membranes were evaluated. The differentiation of protein adhesion, cell viability, cell adhesion, and cell proliferation by the increasing content of S-doped graphene was examined. The contact angle analysis revealed that modification of PHBHHx with S-doped Graphene reduced the free surface energy of PHBHHx membranes. Blending with S-doped Graphene has decreased the polarity of the PHBHHx membrane. The protein adsorption on the PHBHHx membrane was determined as 10.12 ± 0.247 mg/ml. Protein absorption on 1%, 0.5% and 0.1% S-doped graphene/PHBHHx membranes were determined as 11.34 ± 0.551 mg/ml, 9.91 ± 0.294 mg/ml and 9.48 ± 0.093 mg/ml, respectively. The cell attachment to the surface decreased with the increasing amount of S-doped graphene, however, PHBHHx membranes with graphene did not affect cytotoxicity. S-doped graphene blended PHBHHx membrane seems like a suitable patch for biomedical treatments as a hydrophobic membrane where less cell adhesion and proliferation are required like the prevention of peritoneal adhesion.
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Affiliation(s)
- Meryem Akkurt Yıldırım
- Department of Molecular Biology and Genetics, Yildiz Technical University, 34349 Istanbul, Turkey
| | - Murat Demirbilek
- Advanced Technologies Application and Research Center, Hacettepe University, 06800 Ankara, Turkey
| | - Hürmüs Gürsu
- Department of Chemistry, Yildiz Technical University, 34220 Istanbul, Turkey
| | - Yücel Şahin
- Department of Chemistry, Yildiz Technical University, 34220 Istanbul, Turkey
| | - Nelisa Türkoğlu
- Department of Molecular Biology and Genetics, Yildiz Technical University, 34349 Istanbul, Turkey.
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9
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Islam J, Shao H, Badal MMR, Razeeb KM, Jamal M. Pencil graphite as electrode platform for free chlorine sensors and energy storage devices. PLoS One 2021; 16:e0248142. [PMID: 33705449 PMCID: PMC7951880 DOI: 10.1371/journal.pone.0248142] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 02/21/2021] [Indexed: 11/19/2022] Open
Abstract
Multifunctional and low-cost electrode materials are desirable for the next-generation sensors and energy storage applications. This paper reports the use of pencil graphite as an electrode for dual applications that include the detection of free residual chlorine using electro-oxidation process and as an electrochemical energy storage cathode. The pencil graphite is transferred to cellulose paper by drawing ten times and applied for the detection of free residual chlorine, which shows a sensitivity of 27 μA mM-1 cm-2 with a limit of detection of 88.9 μM and linearity up to 7 mM. The sample matrix effect study for the commonly interfering ions such as NO3-, SO42-, CO32-, Cl-, HCO3- shows minimal impact on free residual chlorine detection. Pencil graphite then used after cyclic voltammogram treatment as a cathode in the aqueous Zn/Al-ion battery, showing an average discharge potential plateau of ~1.1 V, with a specific cathode capacity of ~54.1 mAh g-1 at a current of 55 mA g-1. It maintains ~95.8% of its initial efficiency after 100 cycles. Results obtained from the density functional theory calculation is consistent with the electro-oxidation process involved in the detection of free residual chlorine, as well as intercalation and de-intercalation behavior of Al3+ into the graphite layers of Zn/Al-ion battery. Therefore, pencil graphite due to its excellent electro-oxidation and conducting properties, can be successfully implemented as low cost, disposable and green material for both sensor and energy-storage applications.
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Affiliation(s)
- Jahidul Islam
- Department of Chemistry, Faculty of Civil Engineering, Khulna University of Engineering & Technology, Khulna, Bangladesh
| | - Han Shao
- Micro-Nano Systems Centre, Tyndall National Institute, University College Cork, Cork, Ireland
| | - Md. Mizanur Rahman Badal
- Department of Chemistry, Faculty of Civil Engineering, Khulna University of Engineering & Technology, Khulna, Bangladesh
| | - Kafil M. Razeeb
- Micro-Nano Systems Centre, Tyndall National Institute, University College Cork, Cork, Ireland
- * E-mail: (MJ); (KMR)
| | - Mamun Jamal
- Department of Chemistry, Faculty of Civil Engineering, Khulna University of Engineering & Technology, Khulna, Bangladesh
- * E-mail: (MJ); (KMR)
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10
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Lavanya AL, Kumari KGB, Prasad KRS, Brahman PK. Development of Pen‐type Portable Electrochemical Sensor Based on Au‐W Bimetallic Nanoparticles Decorated Graphene‐chitosan Nanocomposite Film for the Detection of Nitrite in Water, Milk and Fruit Juices. ELECTROANAL 2021. [DOI: 10.1002/elan.202060524] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Akkaraboyina Lakshmi Lavanya
- Electroanalytical Lab Department of Chemistry Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur Andhra Pradesh 522502 India
| | - K. Gowri Bala Kumari
- Electroanalytical Lab Department of Chemistry Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur Andhra Pradesh 522502 India
- Department of Chemistry Acharya Nagarjuna University, Nagarjuna Nagar, Andhra Pradesh 522502 India
| | - K. R. S. Prasad
- Electroanalytical Lab Department of Chemistry Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur Andhra Pradesh 522502 India
| | - Pradeep Kumar Brahman
- Electroanalytical Lab Department of Chemistry Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur Andhra Pradesh 522502 India
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11
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Arvas MB, Karatepe N, Gencten M, Sahin Y. Fabrication of high-performance symmetrical coin cell supercapacitors by using one step and green synthesis sulfur doped graphene powders. NEW J CHEM 2021. [DOI: 10.1039/d0nj06061e] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In this work, symmetrical supercapacitors in the form of coin cell types were produced by using S-doped graphene powders.
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Affiliation(s)
- Melih Besir Arvas
- Yıldız Technical University
- Faculty of Art and Sciences
- Department of Chemistry
- Istanbul
- Turkey
| | - Nilgün Karatepe
- Istanbul Technical University
- Institute of Energy
- Renewable Energy Division
- Istanbul
- Turkey
| | - Metin Gencten
- Yıldız Technical University
- Faculty of Chemical and Metallurgical Engineering
- Department of Metallurgy and Materials Engineering
- 34210 Istanbul
- Turkey
| | - Yucel Sahin
- Yıldız Technical University
- Faculty of Art and Sciences
- Department of Chemistry
- Istanbul
- Turkey
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12
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Improvement in the performance of an electrochemical sensor for ethanol determination by chemical treatment of graphite. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114659] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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13
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Leuaa P, Priyadarshani D, Choudhury D, Maurya R, Neergat M. Resolving charge-transfer and mass-transfer processes of VO 2+/VO 2 + redox species across the electrode/electrolyte interface using electrochemical impedance spectroscopy for vanadium redox flow battery. RSC Adv 2020; 10:30887-30895. [PMID: 35516052 PMCID: PMC9056327 DOI: 10.1039/d0ra05224h] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 08/04/2020] [Indexed: 01/01/2023] Open
Abstract
Electrochemical impedance spectroscopy is used to investigate the charge-transfer and mass-transfer processes of VO2+/VO2 + (V4+/V5+) redox species across the carbon-modified glassy carbon disk electrode/electrolyte interface. The features of the EIS patterns depend on the potential, concentrations of the redox species and mass-transport conditions at the electrode/electrolyte interface. With the starting electrolyte containing either only V4+ or V5+ redox species, EIS shows a straight line capacitor feature, as no oxidation or reduction reaction take place at the measured open circuit potential (OCP). With the electrolyte containing equimolar concentration of V4+ and V5+, EIS pattern has both charge-transfer and mass-transfer features at the equilibrium potential. The features of the charge-transfer process are observed to be influenced by the mass-transfer process. Optimum concentrations of the V4+/V5+ redox species and supporting H2SO4 electrolyte are required to resolve the EIS features corresponding to the underlying physical processes. The semi-infinite linear diffusion characteristics of the V4+/V5+ redox species observed with a static condition of the electrode converges to that of a finite diffusion under hydrodynamic condition.
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Affiliation(s)
- Pradipkumar Leuaa
- Department of Energy Science and Engineering, Indian Institute of Technology Bombay (IITB) Powai Mumbai 400076 India +91 22 2576 4890 +91 22 2576 7893
| | - Divya Priyadarshani
- Centre for Research in Nanotechnology & Science, Indian Institute of Technology Bombay (IITB) Powai Mumbai 400076 India
| | - Debittree Choudhury
- Department of Energy Science and Engineering, Indian Institute of Technology Bombay (IITB) Powai Mumbai 400076 India +91 22 2576 4890 +91 22 2576 7893
| | - Rajan Maurya
- Department of Energy Science and Engineering, Indian Institute of Technology Bombay (IITB) Powai Mumbai 400076 India +91 22 2576 4890 +91 22 2576 7893
| | - Manoj Neergat
- Department of Energy Science and Engineering, Indian Institute of Technology Bombay (IITB) Powai Mumbai 400076 India +91 22 2576 4890 +91 22 2576 7893
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14
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Tahtaisleyen S, Gorduk O, Sahin Y. Electrochemical Determination of Sunset Yellow Using an Electrochemically Prepared Graphene Oxide Modified – Pencil Graphite Electrode (EGO-PGE). ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1767120] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Selen Tahtaisleyen
- Faculty of Arts & Science, Department of Chemistry, Yildiz Technical University, Istanbul, Turkey
| | - Ozge Gorduk
- Faculty of Arts & Science, Department of Chemistry, Yildiz Technical University, Istanbul, Turkey
| | - Yucel Sahin
- Faculty of Arts & Science, Department of Chemistry, Yildiz Technical University, Istanbul, Turkey
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Simultaneous analysis of Pb 2+ and Cd 2+ at graphene/bismuth nanocomposite film-modified pencil graphite electrode using square wave anodic stripping voltammetry. Anal Bioanal Chem 2019; 411:8113-8121. [PMID: 31768591 DOI: 10.1007/s00216-019-02193-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 09/17/2019] [Accepted: 10/07/2019] [Indexed: 12/30/2022]
Abstract
A graphene/bismuth nanocomposite film-modified pencil graphite electrode was quickly prepared for the simultaneous analysis of cadmium and lead heavy metal ions by square wave anodic stripping voltammetry. The pencil graphite electrode's surface was directly modified from graphite to graphene with cyclic voltammetry method in a single step by performing potential cycling between - 0.9 and - 1.4 V in 0.2 mol L-1 NaOH modifying solution. A linear relationship between peak current and concentration was obtained in the range between 5-100 μg L-1 for both Cd2+ and Pb2+, with detection limits of 0.12 μg L-1 for Cd2+ and 0.29 μg L-1 for Pb2+. The developed electrode with the proposed method has been applied to a Canadian-certified reference water sample and tap water sample with reliable results. For tap water sample, the obtained results were in a good agreement with the results provided by AAS. Graphical abstract.
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16
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Calam TT, Uzun D. Rapid and Selective Determination of Vanillin in the Presence of Caffeine, its Electrochemical Behavior on an Au Electrode Electropolymerized with 3‐Amino‐1,2,4‐triazole‐5‐thiol. ELECTROANAL 2019. [DOI: 10.1002/elan.201900328] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Tuğba Tabanlıgil Calam
- Gazi UniversityTechnical Sciences Vocational High School, Department of Chemical Technology 06500 Ankara Turkey
| | - Demet Uzun
- Gazi University, Science FacultyDepartment of Chemistry 06500 Ankara Turkey
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CHAROEN-AMORNKITT P, SUZUKI T, TSUSHIMA S. Determination of Constant Phase Element Parameters under Cyclic Voltammetry Conditions Using a Semi-theoretical Equation. ELECTROCHEMISTRY 2019. [DOI: 10.5796/electrochemistry.18-00082] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | - Takahiro SUZUKI
- Department of Mechanical Engineering, Graduate School of Engineering, Osaka University
| | - Shohji TSUSHIMA
- Department of Mechanical Engineering, Graduate School of Engineering, Osaka University
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18
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Amperometric sensor for dopamine based on surface-graphenization pencil graphite electrode prepared by in-situ electrochemical delamination. Mikrochim Acta 2019; 186:324. [DOI: 10.1007/s00604-019-3430-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 04/10/2019] [Indexed: 02/03/2023]
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19
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Deen K, Asselin E. On the use of a naturally-sourced CuFeS2 mineral concentrate for energy storage. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.11.178] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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20
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Koyun O, Gorduk S, Gencten M, Sahin Y. A novel copper(ıı) phthalocyanine-modified multiwalled carbon nanotube-based electrode for sensitive electrochemical detection of bisphenol A. NEW J CHEM 2019. [DOI: 10.1039/c8nj03721c] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel copper(ii) phthalocyanine (CuPc)-modified multiwalled carbon nanotube-based electrode was prepared for the sensitive electrochemical detection of bisphenol A, by the modification of a pencil graphite electrode via the adsorption method.
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Affiliation(s)
- Ozge Koyun
- Yildiz Technical University
- Faculty of Arts & Science
- Department of Chemistry
- TR34210 Istanbul
- Turkey
| | - Semih Gorduk
- Yildiz Technical University
- Faculty of Arts & Science
- Department of Chemistry
- TR34210 Istanbul
- Turkey
| | - Metin Gencten
- Yildiz Technical University
- Faculty of Chemical and Metallurgical Engineering
- Department of Metallurgy and Materials Engineering
- TR34210 Istanbul
- Turkey
| | - Yucel Sahin
- Yildiz Technical University
- Faculty of Arts & Science
- Department of Chemistry
- TR34210 Istanbul
- Turkey
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21
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He Z, Li M, Li Y, Zhu J, Jiang Y, Meng W, Zhou H, Wang L, Dai L. Flexible electrospun carbon nanofiber embedded with TiO2 as excellent negative electrode for vanadium redox flow battery. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.06.011] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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22
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Vishnu N, Gopalakrishnan A, Badhulika S. Impact of intrinsic iron on electrochemical oxidation of pencil graphite and its application as supercapacitors. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.03.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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23
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Charoen-amornkitt P, Suzuki T, Tsushima S. Ohmic resistance and constant phase element effects on cyclic voltammograms using a combined model of mass transport and equivalent circuits. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.11.079] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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