期刊
FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING
卷 11, 期 2, 页码 185-196出版社
SPRINGER
DOI: 10.1007/s11705-017-1631-5
关键词
cryptomelane-type manganese oxide octahedral molecular sieve; oxygen mobility; reducibility; carbon monoxide oxidation; volatile organic compound combustion
资金
- National Natural Science Foundation of China [21277008, 20777005]
- Natural Science Foundation of Beijing [8082008]
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 degrees C, and the temperature for 90% conversion was 55, 285 and 200 degrees C for oxidation of CO, toluene, and ethyl acetate, respectively. The low-temperature 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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