Department of Physical Chemistry

Address: Circuito Exterior s/n, Ciudad Universitaria. Delegación Coyoacán, C.P. 04510
México, D.F.

Phone: +52 (55) 56-22-45-11
Fax: +52 (55) 56-16-22-17






Ph.D. in Physical and Mathematical Sciences, Institute of Theoretical Physics, Ukranian Academy of Sciences, Kvjv, 1980.
Full-time professor.
Articles published – more than 200, number of articles in Web of Science – 186, articles cited 1668 times, h-index 19.
Sponsored projects by CONACYT, DGAPA, UNAM, and international collaborative projects (Poland, Hungary, Slovenia, Ukraine).
Member of the Academy of Sciences of Mexico and the Molecular Engineer Academy, participating in the scientific projects supported by the European Union.



  • Thermodynamic properties and microscopic structure of homogeneous and inhomogeneous fluids.
  • Thermodynamic and structural properties of electrolyte solutions in homogeneous phase confined by nanopores.
  • Fluid adsorption in pore systems and disordered nanopores media; phase transitions in fluid systems.
  • Research methods: integral equations of fluids theory; density functionals, modelling and computater simulation.




Grants are available for students interested in my supervision for thesis on the following research projects:

Thermodynamic properties of fluids and chemical reactions in pores

Substrate effects in the formation of micropore media and fluid system adsorption.

Electrolyte solutions in disordered porous media.

Structure and thermodynamic properties of polyelectrolytes.



National Research System, Level III.

Awarded with the highest level in the program to reward excellence in research at UNAM.


  • Restricted primitive model for electrolyte solutions in slit-like pores with grafted chains: Microscopic structure, thermodynamics of adsorption, and electric properties from a density functional approach.Por: Pizio, Orest; Sokolowski, Stefan. JOURNAL OF CHEMICAL PHYSICS  Volumen: 138   Número: 20     Número de artículo: 204715   Fecha de publicación: MAY 28 2013.
  • Advances in liquid state theory Foreword. Por: Henderson, Douglas; Pizio, Orest.CONDENSED MATTER PHYSICS  Volumen: 16   Número: 4     Número de artículo: 40101   Fecha de publicación: 2013.
  • Density anomaly of charged hard spheres of different diameters in a mixture with core-softened model solvent. Monte Carlo simulation results. Por: Hribar-Lee, B.; Pizio, O.CONDENSED MATTER PHYSICS  Volumen: 16   Número: 4     Número de artículo: UNSP 43607   Fecha de publicación: 2013.
  • Solvent primitive model for electrolyte solutions in disordered porous matrices of charged species. Replica Ornstein-Zernike theory and grand canonical Monte Carlo simulations Author(s): Luksic Miha; Hribar-Lee Barbara; Baleon Tochimani Sergio; Pizio Orest. MOLECULAR PHYSICS  Volume: 110.Issue: 1   Pages: 17-30   DOI: 10.1080/00268976.2011.631057   Published: 2012. 
  • Phase behavior of binary symmetric mixtures in pillared slit-like pores: A density functional approach. Author(s): Pizio O.; Sokolowski S.; Sokolowska Z. JOURNAL OF CHEMICAL PHYSICS  Volume: 134   Issue: 21     Article Number: 214702   DOI: 10.1063/1.3597773   Published: JUN 7 2011. 
  • Changes in the structure of tethered chain molecules as predicted by density functional approach.Author(s): Borowko M.; Patrykiejew A.; Pizio O.; et al.CONDENSED MATTER PHYSICS  Volume: 14   Issue: 3     Article Number: 33604   DOI: 10.5488/CMP.14.33604   Published: 2011. 
  • The liquid-vapor interface of the restricted primitive model of ionic fluids from a density functional approach.Author(s): Patrykiejew A.; Sokolowski S.; Pizio O.CONDENSED MATTER PHYSICS  Volume: 14   Issue: 1     Article Number: 13603   DOI: 10.5488/CMP.14.13603   Published: 2011. 
  • Microscopic structure and thermodynamics of a core-softened model fluid from the second-order integral equations theory.Author(s): Pizio O.; Sokolowska Z.; Sokolowski S.CONDENSED MATTER PHYSICS  Volume: 14   Issue: 1     Article Number: 13601   DOI: 10.5488/CMP.14.13601   Published: 2011.  
  • Structural and thermodynamic properties of the restricted primitive model electrolyte in a mixture with uncharged hard spheres: a grand canonical Monte Carlo simulation and integral equation study. Author(s): Luksic Miha; Hribar-Lee Barbara; Pizio Orest. MOLECULAR PHYSICS  Volume: 109   Issue: 6   Pages: 893-904   DOI: 10.1080/00268976.2011.558029   Published: 2011. 
  • Rzysko W., Patrykiejew A., Sokolowski S., Pizio O. Phase behavior of a two-dimensional and confined in slitlike pores square-shoulder, square-well fluid. JOURNAL OF CHEMICAL PHYSICS, volume 132, 164702, 2010
  • Pizio O., Sokolowski S. Entropic solvation force between surfaces modified by grafted chains: a density functional approach. CONDENSED MATTER PHYSICS, volume 13, 13602, 2010.    



  • Stefan Sokolowski, O. Pizio, Monte Carlo Calculations for Liquid Films, in: Encyclopedia of Surface and Colloid Science, Marcel Dekker, New York, 2002.
  • M. Borowko, S. Sokolowski, O. Pizio, Nonuniform Associating Fluids, Chapter 4 in: Computational Methods in Surface and Colloid Science, Marcel Dekker, New York, 2000.
  • O. Pizio, Adsorption in Random Porous Media, Chapter 6 in: Computational Methods in Surface and Colloid Science, Marcel Dekker, New York, 2000.
  • O. Pizio, S. Sokolowski. Advances in the theoretical description of solid-electrolyte solutions interfaces.Chapter in: Handbook of Solid State Electrochemistry, volume 2: Electrodes, Interfaces and Ceramic Membranes, V. Kharton (ed.). April 2011, ISBN-10: 3-527-32638-3.


Made in Mexico, all rights reserved 2009 - 2012. This page can be reproduced for non-profit purposes, with the proviso that it cannot be altered, and that it quotes the complete source and electronic address. Otherwise it requires prior written permission from the institution. Dr. Orest Pizio.
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