Abstract
Sol–gel magnesia–silica mixed oxides were prepared with tetraethoxysilane (TEOS) and magnesium ethoxide as molecular precursors. While still at the fluid phase before gelation, a solution of copper acetylacetonate was added. After gelation, the solids thus obtained were sulfated in two ways: by conventional impregnation and by an in situ impregnation with H 2SO 4. The solids were characterized by TPD (NH 3 and CO 2). The solids impregnated in situ, containing 4.0 and 6.7 mol% of MgO show a high acidity. The mixed oxides showed high specific surface area values when the gelation is carried out at pH 3; however, at pH 9, areas three times smaller were obtained. Their catalytic activity was studied using the decomposition of 2-propanol as a test reaction.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
