Abstract
The preparation of supported and unsupported group II oxide catalysts through oxidation of analogous group II acetates (Mg, Ca and Ba) in the presence and absence of a mesoporous silica material (SBA-15) was analysed using TGA. In the absence of the mesoporous support the acetates oxidised at different temperatures with a stability trend whereby Mg < Ca < Ba. The Mg and Ca salts were totally converted into the analogous oxides following treatment to 750 °C (albeit with different routes of conversion) while Ba(CH3CO2)2 was converted into BaCO3. Once dispersed onto SBA-15, all acetates combusted at similar temperatures irrespective of the counter-ion (indicating its nature was less important). The counter-ion also inverted the nature of the final material with, in this case, BaO and substantial amounts of CaO forming but MgCO3 being the product of Mg(CH3CO2)2 combustion.
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The UCD School of Chemistry and Chemical Biology is acknowledged and thanked for providing a studentship to LS. This contribution is dedicated to the memory of Prof. Joseph Cunningham, Department of Chemistry, UCC, Cork, Ireland.
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Sullivan, J.A., Sherry, L. The Preparation of Group II Oxide Catalysts Through Acetate Calcination: The Influence of a Support on the Nature of the Final Catalyst. Catal Lett 143, 401–405 (2013). https://doi.org/10.1007/s10562-013-0986-6
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DOI: https://doi.org/10.1007/s10562-013-0986-6