%0 Book Section %1 statphys23_0877 %A Jimenez-angeles, F. %A Aguilar-pineda, G.E. %A Jiang, Y. %A Lozada-cassou, M. %B Abstract Book of the XXIII IUPAP International Conference on Statistical Physics %C Genova, Italy %D 2007 %E Pietronero, Luciano %E Loreto, Vittorio %E Zapperi, Stefano %K charge compressibility der negative separation statphys23 topic-6 van waals %T Induced charge separation and van der Waals-like isotherms in a confined electrolyte by spherical and cylindrical nanopores %U http://st23.statphys23.org/webservices/abstract/preview_pop.php?ID_PAPER=877 %X Electrolytes confined by spherical, cylindrical, and slit-like charged nanopores are studied. Results for ionic distribution profiles, pressures of the confined fluid, and absorption isotherms are obtained through the hypernetted chain/mean spherical approximation (HNC/MSA) integral equations theory. In spherical and cylindrical geometries, an inward, non-monotonic behavior of the pressure is found as confinement or concentration increase, implying a negative compressibility. The pressure vs volume isotherms resemble liquid-vapor van der Waals-like phase transition diagrams. This effect is correlated with a charge separation inside a spherical pore previously reported (Phys. Rev. Lett., 79, 3656, 1997). Here, the mechanism of charge separation and negative compressibility are explored in detail in relation to geometry of confinement, charge of the micropore and fluid concentration and valence.

@incollection{statphys23_0877, abstract = {Electrolytes confined by spherical, cylindrical, and slit-like charged nanopores are studied. Results for ionic distribution profiles, pressures of the confined fluid, and absorption isotherms are obtained through the hypernetted chain/mean spherical approximation (HNC/MSA) integral equations theory. In spherical and cylindrical geometries, an inward, non-monotonic behavior of the pressure is found as confinement or concentration increase, implying a negative compressibility. The pressure vs volume isotherms resemble liquid-vapor van der Waals-like phase transition diagrams. This effect is correlated with a charge separation inside a spherical pore previously reported (Phys. Rev. Lett., 79, 3656, 1997). Here, the mechanism of charge separation and negative compressibility are explored in detail in relation to geometry of confinement, charge of the micropore and fluid concentration and valence.}, added-at = {2007-06-20T10:16:09.000+0200}, address = {Genova, Italy}, author = {Jimenez-angeles, F. and Aguilar-pineda, G.E. and Jiang, Y. and Lozada-cassou, M.}, biburl = {https://www.bibsonomy.org/bibtex/2233d8b7321217a1bd2d694be4d669de1/statphys23}, booktitle = {Abstract Book of the XXIII IUPAP International Conference on Statistical Physics}, editor = {Pietronero, Luciano and Loreto, Vittorio and Zapperi, Stefano}, interhash = {06e6eac525a4202c22fb11e0f911ae89}, intrahash = {233d8b7321217a1bd2d694be4d669de1}, keywords = {charge compressibility der negative separation statphys23 topic-6 van waals}, month = {9-13 July}, timestamp = {2007-06-20T10:16:31.000+0200}, title = {Induced charge separation and van der Waals-like isotherms in a confined electrolyte by spherical and cylindrical nanopores}, url = {http://st23.statphys23.org/webservices/abstract/preview_pop.php?ID_PAPER=877}, year = 2007 }