The texture of a binary AI2O3-GeO2 gel system

• Autorzy: Kirszensztejn P. , Marciniak P. , Przekop R. , Szymkowiak A. , Kierzkowska A.
• Języki publikacji: EN

Abstrakty

EN

A comprehensive comparative study of binary oxide systems obtained by the sol-gel chemistry has been made. Particular attention has been paid to the texture changes. Using germanium isopropoxide and aluminium isopropoxide, binary gels with mesoporous structure have been obtained. Binary gels show a monodispersive distribution and the major contribution to the pore volume comes from the pores of diameters similar to those in the pure alumina gel.

Słowa kluczowe

EN

Al2O3-GeO2 gels; texture

PL

Al2O3-GeO2; żele; tekstura

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2006
• Tom: Vol. 8, nr 2
• Strony: 115--117
• Opis fizyczny: Bibliogr. 8 poz., rys., tab.

Twórcy

autor

Kirszensztejn P.

autor

Marciniak P.

autor

Przekop R.

autor

Szymkowiak A.

autor

Kierzkowska A.

• Faculty of Chemistry, A. Mickiewicz University, ul. Grunwaldzka 6, 60-780 Poznań,

Bibliografia

• (1) Ko E. I.: Sol-Gel Process in Preparation of Solid Catalysts, Edited by G. Ertl, H. Knözinger, J. Weitkamp, Wiley-VCH, Weinheim 1999 pp. 93.
• (2) Kirszensztejn P.: Al2O3-SnO2 System as a Support for Metallic Catalysts. II. Porous Structure, Mater. Chem. Phys.1991, 27, 129.
• (3) Kirszensztejn P., Bell T. N.: Effect of Hydrogen Treatment on the Porous Structure of Al2O3 – SnO2 System, Catal. Lett. 1993, 21, 371.
• (4) Kirszensztejn P., Szymkowiak A., Marciniak P., Martyła A., Przekop R.: Texture of Al2O3-SnO2 Binary Oxides System Obtained via Sol-Gel Chemistry, Appl. Catal., A:Gen., 2003, 245, 159.
• (5) Kirszensztejn P., Szymkowiak A., Martyła A., Marciniak P., Przekop R.: Porosity of Aluminium oxide-based binary systems obtained by sol-gel method, React. Kinet. Catal. Lett., 2004, 82 , 287.
• (6) Kirszensztejn P., Przekop R., Szymkowiak A., Maćkowska E., Gaca J.: Preparation of MgO-Al2O3 binary gel system with mesoporous structure, Micropor. Mesopor. Mater. 2006, 89, 150.
• (7) Kirszensztejn P., Marciniak P., Przekop R., Szymkowiak A., Jurek K.: Synthesis and properties of binary Al2O3-GeO2 system obtained by sol-gel processes-TA study in oxidising atmosphere, Pol. J. Chem. Tech., ibidem.
• (8) Lecloux A. J.: Texture of Catalysts, in Catalysis-Science and Technology, 1983, 2, 171.