TY - GEN
T1 - Pore structure and texture of organic/inorganic hybrid materials
AU - Téllez, Lucía
AU - Balmori, Heberto
AU - Valenzuela, Miguel A.
AU - Rubio, Juan
AU - Rubio, Fausto
AU - Oteo, José L.
PY - 2006
Y1 - 2006
N2 - In this work, the influence of HCl 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 HCl 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.
AB - In this work, the influence of HCl 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 HCl 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.
UR - http://www.scopus.com/inward/record.url?scp=33845999532&partnerID=8YFLogxK
M3 - Contribución a la conferencia
AN - SCOPUS:33845999532
SN - 0470080523
SN - 9780470080528
T3 - Ceramic Engineering and Science Proceedings
SP - 387
EP - 397
BT - Mechanical Properties and Performance of Engineering Ceramics and Composites II - A Collection of Papers Presented at the 30th International Conference on Advanced Ceramics and Composites
T2 - Mechanical Properties and Performance of Engineering Ceramics and Composites Symposium - 30th International Conference on Advanced Ceramics and Composites
Y2 - 22 January 2006 through 27 January 2006
ER -