Abstract
X6Al2HT500 hydrotalcites, where X represents Mg, Fe, Cu or Zn were synthetized and investigated before and after gold deposition for toluene and CO total oxidation reactions. The samples have been characterized by specific areas, XRD measurements and Temperature Programmed Reduction. Concerning the toluene total oxidation, the best activity was obtained with Au/Cu6Al2HT500 catalyst with T50 at 260 °C. However, catalytic behavior of Au/X6Al2HT500 sample in both reactions depends mainly on the nature of the support.
Highlights
Volatiles Organic Compounds (VOCs) often cause breathing problems, many of them are carcinogen and they participate in the formation of tropospheric ozone
We have shown that the gold catalyst supported on Ce-Ti mixed oxide prepared by deposition–precipitation method provides a small gold particle size and high catalytic activity in propene oxidation [10,11]
The aim of the present study is to investigate the effect of gold deposition on X6Al2HT hydrotalcites for toluene and carbon monoxide total oxidation reactions
Summary
Volatiles Organic Compounds (VOCs) often cause breathing problems, many of them are carcinogen and they participate in the formation of tropospheric ozone. The iron oxide catalysts are known to be an active solid and support for the CO oxidation [23] These oxides are recognized to be a good gold support for the VOC oxidation, in particular for the methanol, propanol and toluene oxidation [24]. The gold supported on the zinc oxide was already reported as a good catalyst for the benzene, toluene and xylene oxidation [25] This solid was reported as having high activity for these reactions compared to the Au/MgO and Au/Al2O3. The aim of the present study is to investigate the effect of gold deposition on X6Al2HT hydrotalcites (where X represents Mg, Fe, Cu or Zn) for toluene and carbon monoxide total oxidation reactions.
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