Sunday 30 April 2017

Biredox Ionic Liquids with Solid-like Redox Density in the Liquid State for High-Energy Supercapacitors

E. Mourad, L. Coustan, P. Lannelongue, D. Zigah, A. Mehdi, A. Vioux, S. Freunberger, F. Favier, O. Fontaine

Nature Materials, 2016

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.

2016-29

Miniaturized Electrochemical Device from Assembled Cylindrical Macroporous Gold Electrodes
Thursday, 12 January 2017
A. Karajic, S. Reculusa, S. Ravaine, N. Mano, A. Kuhn ChemElectroChem 2016, 3, 2031 – 2035 To design original electrochemical devices, self-assembly and growth processes can be coupled to create a...
Read More...
Biredox Ionic Liquids with Solid-like Redox Density in the Liquid State for High-Energy Supercapacitors
Tuesday, 29 November 2016
E. Mourad, L. Coustan, P. Lannelongue, D. Zigah, A. Mehdi, A. Vioux, S. Freunberger, F. Favier, O. Fontaine Nature Materials, 2016 Kinetics of electrochemical reactions are several orders of...
Wireless Synthesis and Activation of Electrochemiluminescent Thermoresponsive Janus Objects Using Bipolar Electrochemistry
Tuesday, 29 November 2016
O. Phuakkong, M. Sentic, H. Li, C. Warakulwit, J. Limtrakul, N. Sojic, A. Kuhn, V. Ravaine, D. Zigah. Langmuir, 2016 In this work, bipolar electrochemistry (BPE) is used as a dual wireless tool to...
Read More...
Combined Local Anodization of Titanium and Scanning Photoelectrochemical Mapping of TiO2 Spot Arrays
Tuesday, 29 November 2016
V. Badets, G. Loget, P. Garrigue, N. Sojic,  D. Zigah Electrochimica Acta, 2016, 222, 84–91   Localized growth of TiO2 and rapid screening of TiO2 photoelectrochemical properties by...
Read More...
Combining Microfluidics and FT-IR Spectroscopy: Towards spatially resolved information on chemical processes
Thursday, 24 November 2016
A. Perro*, G. Lebourdon, S. Henry, S. Lecomte, L. Servant, S. Marre React. Chem. Eng., 2016,1, 577-594 This review outlines the combination of infrared spectroscopy and continuous microfluidic...
Read More...
Essential Role of Electrode Materials in Electrochemiluminescence Applications
Tuesday, 15 November 2016
Giovanni Valenti, Andrea Fiorani, Haidong Li, Neso Sojic and Francesco Paolucci ChemElectroChem, 2016, 3, 1990-1997 (selected as spotlights in Angew.​ Chem. Int. Ed.)...
Read More...
Asymmetric synthesis using chiral encoded metal
Wednesday, 12 October 2016
T. Yutthalekha,C. Wattanakit,V. Lapeyre,S. Nokbin,C. Warakulwit, J. Limtrakul, A. Kuhn  Nature Commun. 2016, 7: 12678 The synthesis of chiral compounds is of crucial importance in many areas of...
Read More...
Nanostructured Antimony-Doped Tin Oxide Layers with Tunable Pore Architectures as Versatile Transparent Current Collectors for Biophotovoltaics
Wednesday, 12 October 2016
K. Peters, H. N. Lokupitiya, D. Sarauli, M. Labs, M. Pribil, J. Rathouský, A. Kuhn, D. Leister, M. Stefik, D. Fattakhova-Rohlfing  Adv. Funct. Mater. 2016, 26, 6682–6692 Nanostructured...
Read More...
Selective Electrochemiluminescent Sensing of Saccharides using Boronic Acid-Modified Coreactant
Wednesday, 05 October 2016
H. Li, A. C. Sedgwick,  M. Li, R. A. R. Blackburn, S. D. Bull, S. Arbault, T. D. James and N. Sojic Chem. Comm., 2016, 52, 12845-12848 We report a strategy for modulating the electrogenerated...
Read More...
Antagonist Effects Leading to Turn-on Electrochemiluminescence in Thermoresponsive Hydrogel Films
Wednesday, 05 October 2016
H. Li, M. Sentic, V. Ravaine and N. Sojic Phys. Chem. Chem. Phys., 2016, 18, 32697-32702 We report the effects of the swell-to-collapse transition on the electrochemical and electrochemiluminescent...
Read More...
Physicochemical and Electronic Properties of Cationic [6]Helicenes, from Chemical and Electrochemical Stabilities to Far-Red (Polarized) Luminescence
Wednesday, 05 October 2016
J. Bosson, G. M. Labrador, S. Pascal, F.-A. Miannay, O. Yushchenko, H. Li, L. Bouffier, N. Sojic, R. C. Tovar, G. Muller, D. Jacquemin, A. D. Laurent, B. Le Guennic, E. Vauthey, J. Lacour Chemistry-A...
Read More...
Analytical Electrochemiluminescence
Wednesday, 05 October 2016
H. Cui, F. Paolucci, N. Sojic, G. Xu Analytical and Bioanalytical Chemistry, 2016, 408, 7001–7002
Direct oxidative pathway from amplex red to resorufin revealed by in situ confocal imaging
Tuesday, 04 October 2016
P.Lefrançois, V. S. R. Vajrala, I. B. Arredondo, B. Goudeau,Th. Doneux, L. Bouffier,S. Arbault Phys. Chem. Chem. Phys., 2016, 18, 25817-25822. Amplex Red (AR) is a very useful chemical probe that...
Read More...
Drainage dynamics of thin-liquid films containing soft PNiPAM microgels : influence of the cross-linking density and concentration
Monday, 25 July 2016
L. Keal, V. Lapeyre, V. Ravaine, V. Schmitt and C. Monteux Soft Matter, 2016, Accepted Manuscript We investigate the drainage dynamics of thin liquid foam films containing PNiPAM microgels...
Read More...
Saccharide-induced modulation of photoluminescence lifetime in microgels
Monday, 25 July 2016
S. A. Denisov, F. Pinaud, M. Chambaud, V. Lapeyre, B. Catargi, N. Sojic, N. D. McClenaghan, V. Ravaine Phys. Chem. Chem. Phys., 2016,18, 16812-16821 Sugar-responsive microgels were prepared by the...
Read More...
Templated growth of gold satellites on dimpled silica cores
Monday, 18 July 2016
C. Chomette, E. Duguet, S. Mornet, V. N. Manoharan, N. B. Schade, C. Hubert, S. Ravaine, A. Perro and M. Treguer-Delapierre Faraday Discussion, 2016. We synthesize robust clusters of gold...
Read More...
Elaboration of Metal Organic Framework Hybrid Materials with Hierarchical Porosity by Electrochemical Deposition-Dissolution
Saturday, 16 July 2016
C. Warakulwit, S. Yadnum, C. Boonyuen, C. Wattanakit, A. Karajic, P. Garrigue, N. Mano, D. Bradshaw, J. Limtrakul, A. Kuhn CrystEngComm, 2016,18, 5095-5100 Rationally designed hierarchical...
Read More...
Coupling Electrochemistry with Fluorescence Confocal Microscopy To Investigate Electrochemical Reactivity: A Case Study with the Resazurin-Resorufin Fluorogenic Couple
Sunday, 05 June 2016
T. Doneux, L. Bouffier, B. Goudeau, S. Arbault.  Anal. Chem., 2016, 88, 6292-6300.  The redox couple resazurin-resorufin exhibits electrofluorochromic properties which are investigated...
Read More...
Regioselective functionalization of dimpled silica particles
Monday, 30 May 2016
C. Hubert,  C. Chomette,  P.-E. Rouet,  A. Désert,  M. Treguer-Delapierre, J. Majimel,  S. Mornet,  A. Perro,  E. Duguet,  S. Ravaine Coll. Surf. A...
Read More...
Dual enzymatic detection by bulk electrogenerated chemiluminescence
Tuesday, 24 May 2016
A. de Poulpiquet, B. Diez-Buitrago, M. Dumont Milutinovic, M. Sentic, S. Arbault, L. Bouffier, A. Kuhn, N. Sojic Anal. Chem., 2016, 88, 6585–6592 The combination of enzymes, as recognition...
Read More...
Generation of electrochemiluminescence at bipolar electrodes: concepts and applications
Tuesday, 17 May 2016
L. Bouffier, S. Arbault, A. Kuhn, N. Sojic Anal. Bioanal. Chem., 2016, 408, 7003–7011 Bipolar electrochemistry (BPE) is an unconventional technique where a conducting object is addressed...
Read More...
Real-time electrochemical LAMP: a rational comparative study of different DNA intercalating and non-intercalating redox probes
Tuesday, 17 May 2016
A. Martin, L. Bouffier, K. B. Grant, B. Limoges, D. Marchal Analyst, 2016, 141, 4196-4203. We present a comparative study of ten redox-active probes for use in real-time electrochemical loop-mediated...
Read More...
Bright Electrogenerated Chemiluminescence of a Bis-donor Quadrupolar Spirofluorene Dye and its Nanoparticles
Wednesday, 11 May 2016
H. Li, J. Daniel, J.-B. Verlhac, M. Blanchard-Desce, N. Sojic Chem. Eur. J., 2016, 22, 12702-12714 A series of symmetric fluorescent dyes built from a spirofluorene core, bearing electroactive...
Read More...
Double remote electrochemical addressing and optical readout of electrochemiluminescence at the tip of an optical fiber
Wednesday, 11 May 2016
H. Li, P. Garrigue, L. Bouffier, S. Arbault, A. Kuhn, N. Sojic Analyst, 2016, 141, 4299-4304 In this work, we report an original strategy for the wireless electrochemical generation of light at...
Read More...
Microscopic imaging and tuning of electrogenerated chemiluminescence with boron-doped diamond nanoelectrode arrays
Wednesday, 11 May 2016
M. Sentic, F. Virgilio, A. Zanut, D. Manojlovic, S. Arbault, M. Tormen, N. Sojic, P. Ugo Anal. Bioanal. Chem., 2016, 408, 7085–7094 Nanoelectrode arrays (NEAs) are increasingly applied for a...
Read More...
Dual-color electrogenerated chemiluminescence from dispersions of conductive micro-beads addressed by bipolar electrochemistry
Wednesday, 11 May 2016
A. de Poulpiquet, B. Diez-Buitrago, M. Milutinovic, B. Goudeau, L. Bouffier, S. Arbault, A. Kuhn, N. Sojic ChemElectroChem, 2016, 3, 404-409 Bipolar electrochemistry (BPE) is exploited here to...
Read More...
Patchy colloidal particles for programmed self-assembly
Friday, 08 April 2016
E. Duguet, C. Hubert, C. Chomette, A. Perro, S. Ravaine   C. R. Chimie. 2016, 19, 173  An increasing theoretical and experimental effort has been recently dedicated to the design and the...
Read More...
A Compelling Case for Bipolar Electrochemistry
Friday, 11 March 2016
A. Kuhn, R. M. Crooks, S. Inagi ChemElectroChem 2016, 3, 351-352 Bipolar electrochemistry is a wireless way of carrying out redox reactions, which is currently undergoing a renaissance highlighted by...
Read More...
Electric fields for generating unconventional motion of small objects
Thursday, 14 January 2016
L. Bouffier, V. Ravaine, N. Sojic and A. Kuhn.  Curr. Opin. Colloid Interface Sci., 2016, 21, 57-64. Electric fields can be used in several ways to generate motion of objects. In this article we...
Read More...
Selective Functionalization of Graphene Peripheries by using Bipolar Electrochemistry
Monday, 11 January 2016
L. Zuccaro, A. Kuhn, M. Konuma, H. Ki Yu, K. Kern, K. Balasubramanian ChemElectroChem, 2016, 3, 372-377. We present a contactless strategy based on bipolar electrochemistry for the local chemical...
Read More...
Early Diagnosis of fungal Infections using piezomicrogravimetric and electric Chemosensors based on Polymers molecularly imprinted with D-arabitol
Monday, 11 January 2016
M. Dabrowski, P. Sindhu Sharma, Z. Iskierko, K. Noworyta, M. Cieplak, S. Oborska, A. Kuhn, W. KutnerBiosensors and Bioelectronics, 2016, 79, 627-635. An elevated concentration of D-arabitol in urine,...
Read More...
Scroll to top