Abstract
Au–Pd catalysts supported on SBA-16, SBA-16-CeO2, and CeO2 had been studied for partial oxidation of methanol to produce H2. The physicochemical characteristics of the catalysts prepared by deposition–precipitation using urea hydrolysis were examined by inductively coupled plasma atomic emission spectroscopy (ICP-AES), Brunauer-Emmett-Teller (BET), X-ray powder diffraction (XRD), Temperature-programmed reduction (TPR), and H2 temperature-programmed desorption (H2-TPD) analyses. The results show that AuxPdy alloys are observed in Au–Pd/SBA-16 and Au–Pd/SBA-16-CeO2 catalysts. The catalytic results demonstrate that both Au–Pd/SBA-16 and Au–Pd/SBA-16-CeO2 catalysts exhibit higher activity and lower CO selectivity than the Au–Pd/CeO2 catalyst. This could be ascribed to the formation of AuxPdy alloys. The comparison of the Au–Pd/SBA-16 and Au–Pd/SBA-16-CeO2 catalysts reveals that the Au–Pd/SBA-16-CeO2 shows the lower CO selectivity, probably due to the presence of CeO2.
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This work was supported by the National Natural Science Foundations of China (20701018 and 21062013) and the Foundation of Educational Department of Jiangxi Province (GJJ08024).
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Chen, L., Wang, S., Chen, C. et al. Catalytic partial oxidation of methanol over Au–Pd bimetallic catalysts: a comparative study of SBA-16, SBA-16-CeO2, and CeO2 as supports. Transition Met Chem 36, 387–393 (2011). https://doi.org/10.1007/s11243-011-9481-3
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DOI: https://doi.org/10.1007/s11243-011-9481-3