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Catalytic oxidation of carbon monoxide, toluene, and ethyl acetate over the xPd/OMS-2 catalysts: Effect of Pd loading

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Abstract

The Pd catalyst supported on cryptomelane-type manganese oxide octahedral molecular sieve (OMS-2) were prepared. The effect of Pd loading on the catalytic oxidation of carbon monoxide, toluene, and ethyl acetate over xPd/OMS-2 has been investigated. The results show that the Pd loading plays an important role on the physicochemical properties of the xPd/OMS-2 catalysts which outperform the Pd-free counterpart with the 0.5Pd/OMS-2 catalyst being the best. The temperature for 50% conversion was 25, 240 and 160 °C, and the temperature for 90% conversion was 55, 285 and 200 °C for oxidation of CO, toluene, and ethyl acetate, respectively. The lowtemperature reducibility and high oxygen mobility of xPd/OMS-2 are the factors contributable to the excellent catalytic performance of 0.5Pd/OMS-2.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant Nos. 21277008 and 20777005) and Natural Science Foundation of Beijing (Grant No. 8082008).

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Correspondence to Qing Ye or Hongxing Dai.

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Fu, Z., Liu, L., Song, Y. et al. Catalytic oxidation of carbon monoxide, toluene, and ethyl acetate over the xPd/OMS-2 catalysts: Effect of Pd loading. Front. Chem. Sci. Eng. 11, 185–196 (2017). https://doi.org/10.1007/s11705-017-1631-5

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