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Subrata A, Webster RD. Comparing diazonium modified and unmodified activated carbon cloths for energy storage in supercapacitors. ELECTROCHEMICAL SCIENCE ADVANCES 2022. [DOI: 10.1002/elsa.202100084] [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] Open
Affiliation(s)
- Arnold Subrata
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences Nanyang Technological University (NTU) Singapore Singapore
| | - Richard D. Webster
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences Nanyang Technological University (NTU) Singapore Singapore
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2
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Electrografted anthraquinone to monitor pH at the biofilm-anode interface in a wastewater microbial fuel cell. Colloids Surf B Biointerfaces 2021; 210:112274. [PMID: 34894599 DOI: 10.1016/j.colsurfb.2021.112274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 11/27/2021] [Accepted: 12/03/2021] [Indexed: 11/20/2022]
Abstract
Electrografted anthraquinone on graphite was used as a probe to monitor the pH change at the biofilm-electrode interface at the anode of a microbial fuel cell inoculated with wastewater. The grafting procedure was optimized so that the pH-dependent electrochemical response of the grafted quinone did not overlay with that of the electroactive biofilm. The variation of the formal potential of the grafted quinone as a function of pH was linear over the pH range 1-10 with a slope of - 64 mV. This allowed to monitor the interfacial pH change over three weeks of biofilm colonization of the electrode. During that time the interfacial pH decreased from neutrality to 5.3 while the anolyte only acidified down to pH 6.2. This finding is relevant as local pH change usually leads to alterations of the bioenergetics process of microbial communities and hence on the performance of bioelectrochemical devices.
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3
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Amiri M, Shul G, Donzel N, Bélanger D. Aqueous electrochemical energy storage system based on phenanthroline- and anthraquinone-modified carbon electrodes. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138862] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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4
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Yu L, Lu L, Zhou X, Xu L, Alhalili Z, Wang F. Strategies for Fabricating High‐Performance Electrochemical Energy‐Storage Devices by MXenes. ChemElectroChem 2021. [DOI: 10.1002/celc.202100385] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- LePing Yu
- Institute of Automotive Technology Wuxi Vocational Institute of Commerce Wuxi Jiangsu 214153 People's Republic of China
| | - Lu Lu
- Institute of Automotive Technology Wuxi Vocational Institute of Commerce Wuxi Jiangsu 214153 People's Republic of China
| | - XiaoHong Zhou
- Institute of Automotive Technology Wuxi Vocational Institute of Commerce Wuxi Jiangsu 214153 People's Republic of China
| | - Lyu Xu
- Institute of Automotive Technology Wuxi Vocational Institute of Commerce Wuxi Jiangsu 214153 People's Republic of China
| | - Zahrah Alhalili
- College of Sciences and Arts Shaqra University Sajir Riyadh Saudi Arabia
| | - FengJun Wang
- Institute of Automotive Technology Wuxi Vocational Institute of Commerce Wuxi Jiangsu 214153 People's Republic of China
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5
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Deschanels M, Favier F, Fontaine O, Vot SL. Electrochemical evidence of the modification of carbon materials with anthraquinone moiety by a Diels Alder process. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.137027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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Electrolyte dependent performance of graphene–mixed metal oxide composites for enhanced supercapacitor applications. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-03708-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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7
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Maddukuri S, Malka D, Chae MS, Elias Y, Luski S, Aurbach D. On the challenge of large energy storage by electrochemical devices. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136771] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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8
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Composites and Copolymers Containing Redox-Active Molecules and Intrinsically Conducting Polymers as Active Masses for Supercapacitor Electrodes—An Introduction. Polymers (Basel) 2020; 12:polym12081835. [PMID: 32824366 PMCID: PMC7464255 DOI: 10.3390/polym12081835] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 08/14/2020] [Accepted: 08/14/2020] [Indexed: 01/22/2023] Open
Abstract
In this introductory report, composites and copolymers combining intrinsically conducting polymers and redox-active organic molecules, suggested as active masses without additional binder and conducting agents for supercapacitor electrodes, possibly using the advantageous properties of both constituents, are presented. A brief overview of the few reported examples of the use of such copolymers, composites, and comparable combinations of organic molecules and carbon supports is given. For comparison a few related reports on similar materials without intrinsically conducting polymers are included.
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Ramírez‐Delgado V, Morales‐Martínez D, González FJ. Associative and Proton Transfer Effects on the Voltammetric Behaviour of Chemically Grafted Films Bearing Nitrophenyl Groups. ELECTROANAL 2020. [DOI: 10.1002/elan.201900367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Vanessa Ramírez‐Delgado
- Departamento de QuímicaCentro de Investigación y de Estudios Avanzados del I.P.N. Mexico City 07360 Mexico
| | - Daniel Morales‐Martínez
- Departamento de QuímicaCentro de Investigación y de Estudios Avanzados del I.P.N. Mexico City 07360 Mexico
| | - Felipe J. González
- Departamento de QuímicaCentro de Investigación y de Estudios Avanzados del I.P.N. Mexico City 07360 Mexico
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Khalid M, Hassan A, Honorato AM, Crespilho FN, Varela H. 8-Hydroxyquinoline-5-sulfonic acid on reduced graphene oxide layers as a metal-free electrode material for supercapacitor applications. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113193] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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12
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Via GG, Shugart CL, Melnyk SL, Hupman SR, Cline KK. One-step Solvent-free Synthesis and Grafting of Diazonium Ions at Glassy Carbon Electrodes. ELECTROANAL 2018. [DOI: 10.1002/elan.201800407] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Garrhett G. Via
- Department of Chemistry; Wittenberg University; Springfield OH 45501 USA
| | - Chelsea L. Shugart
- Department of Chemistry; Wittenberg University; Springfield OH 45501 USA
| | - Sophia L. Melnyk
- Department of Chemistry; Wittenberg University; Springfield OH 45501 USA
| | | | - Kristin K. Cline
- Department of Chemistry; Wittenberg University; Springfield OH 45501 USA
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13
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Improvement of electrochemical performances of catechol-based supercapacitor electrodes by tuning the redox potential via different-sized O-protected catechol diazonium salts. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.01.115] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Bodin C, Mourad E, Zigah D, Le Vot S, Freunberger SA, Favier F, Fontaine O. Biredox ionic liquids: new opportunities toward high performance supercapacitors. Faraday Discuss 2018; 206:393-404. [PMID: 28936498 DOI: 10.1039/c7fd00174f] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nowadays commercial supercapacitors are based on purely capacitive storage at the porous carbons that are used for the electrodes. However, the limits that capacitive storage imposes on energy density calls to investigate new materials to improve the capacitance of the device. This new type of electrodes (e.g., RuO2, MnO2…) involves pseudo-capacitive faradaic redox processes with the solid material. Ion exchange with solid materials is, however, much slower than the adsorption process in capacitive storage and inevitably leads to significant loss of power. Faradaic process in the liquid state, in contrast can be similarly fast as capacitive processes due to the fast ion transport. Designing new devices with liquid like dynamics and improved specific capacitance is challenging. We present a new approach to increase the specific capacitance using biredox ionic liquids, where redox moieties are tethered to the electrolyte ions, allowing high redox concentrations and significant pseudo-capacitive storage in the liquid state. Anions and cations are functionalized with anthraquinone (AQ) and 2,2,6,6-tetramethylpiperidinyl-1-oxyl (TEMPO) moieties, respectively. Glassy carbon, carbon-onion, and commercial activated carbon electrodes that exhibit different double layer structures and thus different diffusion dynamics were used to simultaneously study the electrochemical response of biredox ionic liquids at the positive and negative electrode.
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Affiliation(s)
- C Bodin
- Institut Charles Gerhardt Montpellier, UMR 5253, Université de Montpellier, CC 1502, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France. and Réseau sur le Stockage Electrochimique de l'Energie (RS2E), CNRS, FR3459, 33 Rue Saint Leu, 80039 Amiens Cedex, France
| | - E Mourad
- Institut Charles Gerhardt Montpellier, UMR 5253, Université de Montpellier, CC 1502, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France.
| | - D Zigah
- Université Bordeaux, ISM, CNRS, UMR 5255, F-33400 Talence, France
| | - S Le Vot
- Institut Charles Gerhardt Montpellier, UMR 5253, Université de Montpellier, CC 1502, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France. and Réseau sur le Stockage Electrochimique de l'Energie (RS2E), CNRS, FR3459, 33 Rue Saint Leu, 80039 Amiens Cedex, France
| | - S A Freunberger
- Institute for Chemistry and Technology of Materials, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - F Favier
- Institut Charles Gerhardt Montpellier, UMR 5253, Université de Montpellier, CC 1502, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France. and Réseau sur le Stockage Electrochimique de l'Energie (RS2E), CNRS, FR3459, 33 Rue Saint Leu, 80039 Amiens Cedex, France
| | - O Fontaine
- Institut Charles Gerhardt Montpellier, UMR 5253, Université de Montpellier, CC 1502, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France. and Réseau sur le Stockage Electrochimique de l'Energie (RS2E), CNRS, FR3459, 33 Rue Saint Leu, 80039 Amiens Cedex, France
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15
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Brousse K, Martin C, Brisse A, Lethien C, Simon P, Taberna P, Brousse T. Anthraquinone modification of microporous carbide derived carbon films for on-chip micro-supercapacitors applications. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.06.037] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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16
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The spontaneous decarboxylation of strong carboxylic acid − carboxylate mixtures and the use of carbon surfaces to trap the released free radicals. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.05.158] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Mourad E, Coustan L, Lannelongue P, Zigah D, Mehdi A, Vioux A, Freunberger SA, Favier F, Fontaine O. Biredox ionic liquids with solid-like redox density in the liquid state for high-energy supercapacitors. NATURE MATERIALS 2017; 16:446-453. [PMID: 27893725 DOI: 10.1038/nmat4808] [Citation(s) in RCA: 138] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 10/27/2016] [Indexed: 05/03/2023]
Abstract
Kinetics of electrochemical reactions are several orders of magnitude slower in solids than in liquids as a result of the much lower ion diffusivity. Yet, the solid state maximizes the density of redox species, which is at least two orders of magnitude lower in liquids because of solubility limitations. With regard to electrochemical energy storage devices, this leads to high-energy batteries with limited power and high-power supercapacitors with a well-known energy deficiency. For such devices the ideal system should endow the liquid state with a density of redox species close to the solid state. Here we report an approach based on biredox ionic liquids to achieve bulk-like redox density at liquid-like fast kinetics. The cation and anion of these biredox ionic liquids bear moieties that undergo very fast reversible redox reactions. As a first demonstration of their potential for high-capacity/high-rate charge storage, we used them in redox supercapacitors. These ionic liquids are able to decouple charge storage from an ion-accessible electrode surface, by storing significant charge in the pores of the electrodes, to minimize self-discharge and leakage current as a result of retaining the redox species in the pores, and to raise working voltage due to their wide electrochemical window.
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Affiliation(s)
- Eléonore Mourad
- Institut Charles Gerhardt Montpellier, UMR 5253, CC 1701, Université Montpellier, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
- Réseau sur le stockage electrochimique de l'énergie (RS2E), FR CNRS
| | - Laura Coustan
- Institut Charles Gerhardt Montpellier, UMR 5253, CC 1701, Université Montpellier, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
- Réseau sur le stockage electrochimique de l'énergie (RS2E), FR CNRS
| | - Pierre Lannelongue
- Institut Charles Gerhardt Montpellier, UMR 5253, CC 1701, Université Montpellier, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
- Réseau sur le stockage electrochimique de l'énergie (RS2E), FR CNRS
| | - Dodzi Zigah
- Université Bordeaux, ISM, CNRS UMR 5255, F-33400 Talence, France
| | - Ahmad Mehdi
- Institut Charles Gerhardt Montpellier, UMR 5253, CC 1701, Université Montpellier, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
| | - André Vioux
- Institut Charles Gerhardt Montpellier, UMR 5253, CC 1701, Université Montpellier, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
| | - Stefan A Freunberger
- Institute for Chemistry and Technology of Materials, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - Frédéric Favier
- Institut Charles Gerhardt Montpellier, UMR 5253, CC 1701, Université Montpellier, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
- Réseau sur le stockage electrochimique de l'énergie (RS2E), FR CNRS
| | - Olivier Fontaine
- Institut Charles Gerhardt Montpellier, UMR 5253, CC 1701, Université Montpellier, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
- Réseau sur le stockage electrochimique de l'énergie (RS2E), FR CNRS
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18
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Mooste M, Kibena-Põldsepp E, Matisen L, Tammeveski K. Oxygen Reduction on Anthraquinone Diazonium Compound Derivatised Multi-walled Carbon Nanotube and Graphene Based Electrodes. ELECTROANAL 2016. [DOI: 10.1002/elan.201600451] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Marek Mooste
- Institute of Chemistry; University of Tartu; Ravila 14a 50411 Tartu Estonia
| | | | - Leonard Matisen
- Institute of Physics; University of Tartu; W. Ostwald Str. 1 50411 Tartu Estonia
| | - Kaido Tammeveski
- Institute of Chemistry; University of Tartu; Ravila 14a 50411 Tartu Estonia
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19
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Wang Q, Nie YF, Chen XY, Xiao ZH, Zhang ZJ. Controllable synthesis of 2D amorphous carbon and partially graphitic carbon materials: Large improvement of electrochemical performance by the redox additive of sulfanilic acid azochromotrop in KOH electrolyte. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.03.183] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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20
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Le Comte A, Brousse T, Bélanger D. Chloroanthraquinone as a grafted probe molecule to investigate grafting yield on carbon powder. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.01.219] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Hetemi D, Médard J, Kanoufi F, Combellas C, Pinson J, Podvorica FI. Surface Modification of Polymers by Reaction of Alkyl Radicals. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:512-518. [PMID: 26653398 DOI: 10.1021/acs.langmuir.5b03669] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The surfaces of poly(methyl methacrylate) and polyethylene are modified either (i) by a two-step process including the thermal reaction of alkyl radicals derived from bromohexanoic acid in a mixture of 2,6-dimethylbenzene diazonium salt and neat isopentyl nitrite at 60 °C, followed by reaction with p-nitroaniline, anthraquinone, neutral red, and polyethylene glycol moieties, or (ii) by reaction of a previously anthraquinone-modified bromohexanoic acid. The modified surfaces are characterized by IR, XPS, UV, and water contact angles. A mechanism is proposed to rationalize the results. This approach is an efficient way to modify and pattern polymer surfaces with different organic groups and chemical functionalities under mild conditions.
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Affiliation(s)
- Dardan Hetemi
- Univ Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS , 15 rue J-A de Baïf, 75205 Paris Cedex 13, France
- Chemistry Department of Natural Sciences Faculty, University of Prishtina , rr. "NënaTereze" nr.5, 10000 Prishtina, Kosovo
| | - Jérôme Médard
- Univ Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS , 15 rue J-A de Baïf, 75205 Paris Cedex 13, France
| | - Frédéric Kanoufi
- Univ Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS , 15 rue J-A de Baïf, 75205 Paris Cedex 13, France
| | - Catherine Combellas
- Univ Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS , 15 rue J-A de Baïf, 75205 Paris Cedex 13, France
| | - Jean Pinson
- Univ Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS , 15 rue J-A de Baïf, 75205 Paris Cedex 13, France
| | - Fetah I Podvorica
- Univ Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS , 15 rue J-A de Baïf, 75205 Paris Cedex 13, France
- Chemistry Department of Natural Sciences Faculty, University of Prishtina , rr. "NënaTereze" nr.5, 10000 Prishtina, Kosovo
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Mooste M, Kibena-Põldsepp E, Marandi M, Matisen L, Sammelselg V, Tammeveski K. Electrochemical properties of gold and glassy carbon electrodes electrografted with an anthraquinone diazonium compound using the rotating disc electrode method. RSC Adv 2016. [DOI: 10.1039/c6ra05609a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The RDE method was combined with the electrografting procedure to prepare thick AQ films on Au and glassy carbon electrodes.
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Affiliation(s)
- M. Mooste
- Institute of Chemistry
- University of Tartu
- 50411 Tartu
- Estonia
| | | | - M. Marandi
- Institute of Physics
- University of Tartu
- 50411 Tartu
- Estonia
| | - L. Matisen
- Institute of Physics
- University of Tartu
- 50411 Tartu
- Estonia
| | - V. Sammelselg
- Institute of Chemistry
- University of Tartu
- 50411 Tartu
- Estonia
- Institute of Physics
| | - K. Tammeveski
- Institute of Chemistry
- University of Tartu
- 50411 Tartu
- Estonia
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23
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Delaporte N, Perea A, Lebègue E, Ladouceur S, Zaghib K, Bélanger D. Increasing the Affinity Between Carbon-Coated LiFePO4/C Electrodes and Conventional Organic Electrolyte by Spontaneous Grafting of a Benzene-Trifluoromethylsulfonimide Moiety. ACS APPLIED MATERIALS & INTERFACES 2015; 7:18519-18529. [PMID: 26186016 DOI: 10.1021/acsami.5b06184] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The grafting of benzene-trifluoromethylsulfonimide groups on LiFePO4/C was achieved by spontaneous reduction of in situ generated diazonium ions of the corresponding 4-amino-benzene-trifluoromethylsulfonimide. The diazotization of 4-amino-benzene-trifluoromethylsulfonimide was a slow process that required a high concentration of precursors to promote the spontaneous grafting reaction. Contact angle measurements showed a hydrophilic surface was produced after the reaction that is consistent with grafting of benzene-trifluoromethylsulfonimide groups. Elemental analysis data revealed a 2.1 wt % loading of grafted molecules on the LiFePO4/C powder. Chemical oxidation of the cathode material during the grafting reaction was detected by X-ray diffraction and quantified by inductively coupled plasma atomic emission spectrometry. Surface modification improves the wettability of the cathode material, and better discharge capacities were obtained for modified electrodes at high C-rate. In addition, electrochemical impedance spectroscopy showed the resistance of the modified cathode was lower than that of the bare LiFePO4/C film electrode. Moreover, the modified cathode displayed superior capacity retention after 200 cycles of charge/discharge at 1 C.
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Affiliation(s)
- Nicolas Delaporte
- Département de Chimie, Université du Québec à Montréal , Case Postale 8888, succursale Centre-Ville, Montréal, Québec, Canada H3C 3P8
| | - Alexis Perea
- Département de Chimie, Université du Québec à Montréal , Case Postale 8888, succursale Centre-Ville, Montréal, Québec, Canada H3C 3P8
| | - Estelle Lebègue
- Département de Chimie, Université du Québec à Montréal , Case Postale 8888, succursale Centre-Ville, Montréal, Québec, Canada H3C 3P8
| | - Sébastien Ladouceur
- Institut de Recherche d'Hydro-Québec (IREQ) , 1800 Boulevard Lionel Boulet, Varennes, Québec, Canada J3X 1S1
| | - Karim Zaghib
- Institut de Recherche d'Hydro-Québec (IREQ) , 1800 Boulevard Lionel Boulet, Varennes, Québec, Canada J3X 1S1
| | - Daniel Bélanger
- Département de Chimie, Université du Québec à Montréal , Case Postale 8888, succursale Centre-Ville, Montréal, Québec, Canada H3C 3P8
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24
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Hatzell KB, Boota M, Gogotsi Y. Materials for suspension (semi-solid) electrodes for energy and water technologies. Chem Soc Rev 2015; 44:8664-87. [DOI: 10.1039/c5cs00279f] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Conducting suspension electrodes for novel flow-assisted electrochemical systems such as grid energy storage, water deionization, and water treatment.
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Affiliation(s)
- Kelsey B. Hatzell
- A.J. Drexel Nanomaterials Institute and Department of Material Science and Engineering
- Drexel University
- Philadelphia
- USA
| | - Muhammad Boota
- A.J. Drexel Nanomaterials Institute and Department of Material Science and Engineering
- Drexel University
- Philadelphia
- USA
| | - Yury Gogotsi
- A.J. Drexel Nanomaterials Institute and Department of Material Science and Engineering
- Drexel University
- Philadelphia
- USA
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25
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Lee J, Kim S. Mediator-free solar energy conversion by the artificially installed thylakoid membrane on the functionalized electrode. Electrochem commun 2014. [DOI: 10.1016/j.elecom.2014.10.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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26
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Kibena E, Marandi M, Sammelselg V, Tammeveski K, Jensen BBE, Mortensen AB, Lillethorup M, Kongsfelt M, Pedersen SU, Daasbjerg K. Electrochemical Behaviour of HOPG and CVD-Grown Graphene Electrodes Modified with Thick Anthraquinone Films by Diazonium Reduction. ELECTROANAL 2014. [DOI: 10.1002/elan.201400290] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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