Tailored synthesis of organised mesoporous aluminas prepared by non-ionic surfactant templating using a Box-Wilson CCF design

作者：de Llobet S; Puron H; Pinilla J L; Moliner R; Millan M^*; Suelves I

来源：Microporous and Mesoporous Materials, 2013, 179: 69-77.

DOI：10.1016/j.micromeso.2013.05.012

• Organized mesoporous alumina
• Non ionic surfactants
• Experiment design

Organized mesoporous aluminas (OMA) are materials that present interesting properties as catalytic supports in reactions in which bulky molecules are involved. In this work, a number of OMA were prepared using a non-ionic structure directing agent (a tri-block co-polymer). The study of the quantitative influence of some OMA synthesis conditions (water aluminium ratio (H2O: Al), ageing temperature (T-ag), and calcination heating rate (r(cat))) on the resulting OMA textural properties (specific surface area (S-BET), pore volume (V-p) and average pore diameter (APD)) was carried out using a Box-Wilson Central Composite Design Face Centred (CCF, alpha: +/- 1). The models obtained provided a satisfactory adjustment of the experimental data. H2O: Al was found to be the most influencing model term. The influence of T-ag and r(cal) interactions on S-BET and V-p was found to be significant. Representative OMA with well differentiated pore size distributions were characterised by N-2 adsorption, XRD and TEM.

• 出版日期2013-9-15