Chapter 38. Pore Structure and Texture of Organic/Inorganic Hybrid Materials

  1. Rajan Tandon,
  2. Andrew Wereszczak and
  3. Edgar Lara-Curzio
  1. Lucia Tellez°1,
  2. Heberto Balmori1,
  3. Miguel A. Valenzuela2,
  4. Juan Rubio3,
  5. Fausto Rubio3 and
  6. Josée L. Oteo3

Published Online: 27 MAR 2008

DOI: 10.1002/9780470291313.ch38

Mechanical Properties and Performance of Engineering Ceramics II: Ceramic Engineering and Science Proceedings, Volume 27, Issue 2

Mechanical Properties and Performance of Engineering Ceramics II: Ceramic Engineering and Science Proceedings, Volume 27, Issue 2

How to Cite

Tellez°, L., Balmori, H., Valenzuela, M. A., Rubio, J., Rubio, F. and Oteo, J. L. (2006) Pore Structure and Texture of Organic/Inorganic Hybrid Materials, in Mechanical Properties and Performance of Engineering Ceramics II: Ceramic Engineering and Science Proceedings, Volume 27, Issue 2 (eds R. Tandon, A. Wereszczak and E. Lara-Curzio), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291313.ch38

Author Information

  1. 1

    Dpt. Ingenieria Metalúurgica. ESIQIE–IPN. Zacatenco 07738, Méexico D.F., Méexico

  2. 2

    Lab. Catáalisis y Materiales. ESIQIE–IPN. Zacatenco 07738, Méexico D.F., Méexico

  3. 3

    Instituto de Ceráamica y Vidrio. C.S.I.C. Campus Cantoblanco, 28049, Madrid, Spain

Publication History

  1. Published Online: 27 MAR 2008
  2. Published Print: 1 JAN 2006

ISBN Information

Print ISBN: 9780470080528

Online ISBN: 9780470291313

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Keywords:

  • adsorption;
  • nitrogen;
  • macropores;
  • supermicropores;
  • tetraethylortosilicate

Summary

In this work, the influence of HC1 concentration on the final pore structure and texture of organic/inorganic hybrid materials was studied. Organic/inorganic materials were prepared by the sol–gel method using tetraethylortosilicate, titanium alkoxide and silanol terminated–PDMS as precursors. These materials were characterized by means of nitrogen adsorption and mercury porosimetry. The results showed that at the highest acid concentration the total porosity increased and the macropores were the predominant form of porosity. On the other hand, using low acid concentrations the total porosity decreased and the pore volume of micropores and mesopores increased. The microporosity was constituted by both ultra and supermicropores and the specific surface area of samples as well as that of micro, meso and macropores was affected by the HC1 concentration. The specific surface area was increased from the smallest to medium acid concentration but at the highest acid concentration it decreased according to the pore structure of samples.