Abstract
The carbon nanotubes supported palladium(Pd/CNT) nanocatalysts were modified by cerium oxides/hydroxides and their catalytic performances for methanol oxidation were evaluated. Electrochemical measurements indicate that the introduction of cerium remarkably improves the catalytic activity of Pd/CNT catalysts towards methanol oxidation. X-Ray photoelectron spectra results reveal an interaction between palladium and cerium oxides. It is also observed that cerium-modified catalysts have excellent poison resistances, which is attributed to the poison-removal ability of cerium oxides/hydroxides. The highly oxidized cerium oxides/hydroxides have a strong ability to inhibit the accumulation of carbonaceous intermediates on the active sites of Pd catalysts.
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Supported by the National Natural Science Foundation of China(No.21273152).
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Chen, W., Zhang, Y. & Zhu, Z. Effects of Cerium Oxides on the Catalytic Performance of Pd/CNT for Methanol Oxidation. Chem. Res. Chin. Univ. 35, 133–138 (2019). https://doi.org/10.1007/s40242-019-8097-5
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DOI: https://doi.org/10.1007/s40242-019-8097-5