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Nanometer SnO2 particles were synthesized by sol-gel dialytic processes and used as a support to prepare CuO supported catalysts via a deposition-precipitation method. The samples were characterized by means of TG-DTA,XRD,H 2-TPR and XPS. The catalytic activity of the CuO/TiO2-SnO2 catalysts was markedly depended on the loading of CuO,and the optimum CuO loading was 8 wt.%(T 100 = 80 C) . The CuO/TiO2-SnO2 catalysts exhibited much higher catalytic activity than the CuO/TiO 2 and CuO/SnO 2 catalysts. H 2-TPR result indicated that a large amount of CuO formed the active site for CO oxidation in 8 wt.% CuO/TiO2-SnO2 catalyst.
Nanometer SnO2 particles were synthesized by sol-gel dialytic processes and used as a support to prepare CuO supported catalysts via a deposition-precipitation method. The samples were characterized by means of TG-DTA, XRD, H2-TPR and XPS. The catalytic The CuO / TiO2-SnO2 catalysts was markedly suspended on the loading of CuO, and the optimum CuO loading was 8 wt.% (T100 = 80 C) CuO / TiO 2 and CuO / SnO 2 catalysts. H 2 -TPR result indicated that a large amount of CuO formed the active site for CO oxidation in 8 wt.% CuO / TiO 2 -SnO 2 catalyst.