Abstract
A new preparation method for Au/TiO2 nanotubes (NTs) by combing sol–gel with hydrothermal treatment technique was developed. The TiO2 NTs calcined at 300 °C were nearly uniform, and the gold particles were distributed homogeneously. The possible formation mechanism was suggested. The 5 % Au/TiO2 NTs calcined at 300 °C had the best catalytic activity for CO oxidation, and their conversion of CO remained at 100 % during 60 h on stream. This preparation method could improve the thermal stability of Au/TiO2 nanotube catalysts.
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Acknowledgments
This work was supported by the National Natural Science Foundation of China (Nos. 21271110 and 21071086), the Applied Basic Research Programs of Science and Technology Commission Foundation of Tianjin (12JCYBJC13100) and MOE Innovation Team (IRT13022) of China.
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Zhao, H., Zhang, P., Wang, Y. et al. Au/TiO2 nanotube catalysts prepared by combining sol–gel method with hydrothermal treatment and their catalytic properties for CO oxidation. J Sol-Gel Sci Technol 71, 406–412 (2014). https://doi.org/10.1007/s10971-014-3390-9
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DOI: https://doi.org/10.1007/s10971-014-3390-9