TiC-carbide derived carbon electrolyte adsorption study by ways of X-ray scattering analysis

Lorie Trognko (1, 2) , Pierre Lecante (3) , Nicolas Ratel-Ramond (3) , Patrick Rozier (1, 2) , Barbara Daffos (1, 2) , Pierre-Louis Taberna (1, 2) , Patrice Simon (1, 2)

1 CIRIMAT - Centre interuniversitaire de recherche et d'ingenierie des matériaux
2 RS2E - Réseau sur le stockage électrochimique de l'énergie
3 CEMES - Centre d'élaboration de matériaux et d'études structurales

Understanding ion adsorption in nanoporous carbon electrodes is of great importance for designing the next-generation of high energy density electrical double-layer capacitors. In this work, X-ray scattering is used for investigating the impregnation of nanoporous carbons with electrolytes in the absence of applied potential. We are able to show that interactions between the carbon surface and electrolytes allow adsorption to take place in sub-nanopores, thus confirming experimentally for the first time the results predicted by molecular dynamic simulations.

Mots clés: Ion adsorption; Supercapacitors; Porous carbon; Ionic liquids; X-ray scattering

Domaines: Matériaux; Chimie théorique et/ou physique

Lorie Trognko, Pierre Lecante, Nicolas Ratel-Ramond, Patrick Rozier, Barbara Daffos, et al.. TiC-carbide derived carbon electrolyte adsorption study by ways of X-ray scattering analysis. Materials for Renewable and Sustainable Energy, 2015, 4 (4), pp.17. ⟨10.1007/s40243-015-0059-4⟩. ⟨hal-01766218⟩