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	References of "Job, Nathalie" in Showing results 21 to 40 of 133 1 2 3 4 5 6 7 Dépôt de nanoparticules par voie humide Job, Nathalie Conference (2012, June 10) Detailed reference viewed: 11 (1 ULg) Electrocatalyst by scientific method of Charge Enhanced Dry Impregnation. Cao, Chongjiang ; Lambert, Stéphanie ; Pirard, Jean-Paul et al Poster (2012, June) Detailed reference viewed: 10 (0 ULg) Physico-chemical and electrochemical properties of Pt/carbon xerogel catalysts prepared by the SEA method. Poster présenté par A. Zubiaur Zubiaur, Anthony ; Chatenet, M.; Maillard, F. et al Poster (2012, June) Detailed reference viewed: 14 (2 ULg) Comment diminuer la quantité de platine dans les piles à combustible ? Laurent-Brocq, M.; Caldarella, Giuseppe ; Job, Nathalie et al Poster (2012, May 20) Detailed reference viewed: 12 (1 ULg) Resorcinol-formaldehyde carbon xerogels as lithium-ion battery anode materials: influence of porosity on capacity and cycling behaviour Léonard, Alexandre ; Piedboeuf, Marie-Laure ; Khomenko, Volodymyr et al in Proceedings of the International Carbon Conference 2012 (2012) Detailed reference viewed: 69 (4 ULg) Catalysts - special issue 'Aerogel catalysts' Job, Nathalie ; Ioannides, Theophilos Book published by MDPI (2012) Detailed reference viewed: 3 (0 ULg) Use of X-ray microtomography to study the homogeneity of carbon nanotube aqueous suspensions and carbon nanotube/polymer composites Haghgoo, M.; Plougonven, Erwan ; Yousefi, A.A. et al in Carbon (2012), 50 Detailed reference viewed: 16 (2 ULg) Influence of the carbon texture of platinum/carbon aerogel electrocatalysts on their behaviour in a Proton Exchange Membrane Fuel Cell cathode Ouattara-Brigaudet, M.; Berthon-Fabry, S.; Beauger, C. et al in International Journal of Hydrogen Energy (2012), 37 Detailed reference viewed: 4 (1 ULg) Nanostructured carbon materials for energy storage applications: control of porosity of resorcinol-formaldehyde xerogels Léonard, Alexandre ; Job, Nathalie ; Pirard, Jean-Paul Conference (2012) Detailed reference viewed: 63 (3 ULg) Effect of CO2 activation of carbon xerogels on the adsorption of methylene blue Páez Martínez, Carlos ; Contreras, M. S.; Léonard, Angélique et al in Adsorption (2012), 18(3-4), 199-211 The effect of physical activation with CO2 of carbon xerogels, synthesized by pyrolysis of a resorcinolformaldehyde aqueous gel, on the adsorption capacities of Methylene Blue (MB) was studied. The ... [more ▼] The effect of physical activation with CO2 of carbon xerogels, synthesized by pyrolysis of a resorcinolformaldehyde aqueous gel, on the adsorption capacities of Methylene Blue (MB) was studied. The activation with CO2 lead to carbon materials with micropore volumes ranging from 0.28 to 0.98 cm³/g -1 C. MB-adsorption isotherm studies showed that the increase of micropore volume and corresponding surface area led to: (i) a significant improvement in the capacity of MB-adsorption at monolayer coverage, from 212 to 714 mgg -1 C, and (ii) an increase of the binding energy related to Langmuir isotherm constant up to 45 times greater than those of commercial microporous activated carbons used as reference (NORIT R2030, CALGON BPL and CALGON NC35). It is proposed that the increase of the binding energy results from chemical cleaning of the O-groups onto carbon surface as a consequence of CO2-activation, increasing the π-π interaction between MB and graphene layers of the carbon xerogels. Finally, a series of batch kinetics were performed to investigate the effect of CO2-activation conditions on the mechanism of MB-adsorption. Experimental data were fitted using pseudo-first-order, pseudo-second-order and intraparticle diffusion kinetic models. From pseudo-second-order kinetic model, one observes an increase in the initial rate of MB-adsorption from 0.019 to 0.0565 min -1, by increasing the specific surface area from 630 to 2180 m²/g -1 C via CO2-activation. Depending on the activation degree of the carbons, two different mechanisms control the MB-adsorption rate: (i) at low activation degree, the intraparticle diffusion is the rate-limiting phenomenon, whereas (ii) at high activation degree, the reactions occurring at the solid/liquid interface are the rate-limiting steps. © 2012 Springer Science+Business Media, LLC. [less ▲] Detailed reference viewed: 21 (2 ULg) Adsorption of methylene blue on activated carbon xerogels Páez Martínez, Carlos ; Contreras, Maria Soledad; Léonard, Angélique et al Poster (2011, November 30) Detailed reference viewed: 44 (10 ULg) Life cycle assessment of carbon xerogels Melon, Raphaëlle ; Renzoni, Roberto ; Léonard, Alexandre et al Poster (2011, November 03) Detailed reference viewed: 13 (4 ULg) nanostructured carbon materials by surfactant-templating of resorcinol-formaldehyde gels: towards a control of porosity for energy storage applications Léonard, Alexandre ; Pirard, Jean-Paul ; Job, Nathalie Poster (2011, September 26) Detailed reference viewed: 14 (5 ULg) Nanostructured carbon materials by surfactant-templating of resorcinol-formaldehyde gels: towards a control of porosity Léonard, Alexandre ; Pirard, Jean-Paul ; Job, Nathalie Poster (2011, September 12) Detailed reference viewed: 18 (4 ULg) Kinetics and diffusional limitations in nanostructured heterogeneous catalyst with controlled pore texture Pirard, Sophie ; Hermans, Sophie; Devillers, Michel et al Poster (2011, September) Detailed reference viewed: 3 (0 ULg) Pt/carbon xerogel catalysts for PEM fuel cells Job, Nathalie ; Maillard, F.; Pirard, Jean-Paul et al in Proceedings of the Fundamentals & Developments of Fuel Cells (FDFC) 2011 Conference (2011, January 19) Detailed reference viewed: 17 (2 ULg) Kinetics and diffusional limitations in nanostructured heterogeneous catalyst with controlled pore texture Pirard, Sophie ; Diverchy, Chantal; Hermans, Sophie et al in Catalysis Communications (2011), 12 Detailed reference viewed: 29 (5 ULg) Three-dimensional void space structure of activated carbon packed beds Almazan Almazan, Maria Del Carmen; Léonard, Angélique ; Job, Nathalie et al in Journal of Porous Materials (2011), 18 Detailed reference viewed: 33 (10 ULg) A comparison of physical activation of carbon xerogels with carbon dioxide with chemical activation using hydroxides Contreras, María S; Páez, Carlos A; Zubizarreta, Leire et al in Carbon (2010), 48(11), 3157-3168 Carbon xerogels synthesized with a fixed resorcinol/sodium carbonate molar ratio (R/C) were physically activated using CO2. The effect of activation temperature and activation time on the final properties ... [more ▼] Carbon xerogels synthesized with a fixed resorcinol/sodium carbonate molar ratio (R/C) were physically activated using CO2. The effect of activation temperature and activation time on the final properties of the activated carbon xerogels was evaluated. The specific surface area increases from ~600 m2 g-1 to 2000 m2 g-1 and more by increasing the temperature and duration of the activation step. A comparison between physical activation with CO2 and chemical activation with hydroxides was also performed: it was found that both processes produce an increase of the micropore volume and specific surface area without altering the meso-macroporosity developed during the synthesis. However, chemical activation can lead to the development of the narrow microporosity mainly whereas, in physical activation, the widening of the narrow micropores takes place whatever the process conditions. [less ▲] Detailed reference viewed: 58 (15 ULg) Synthesis and characterization of highly loaded Pt/carbon xerogel catalysts prepared by Strong Electrostatic Adsorption method Job, Nathalie ; Maillard, F.; Chatenet, M. et al Conference (2010, July 11) Detailed reference viewed: 10 (4 ULg) 1 2 3 4 5 6 7

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