Radio frequency plasma induced synthesis of MoO2-Mo2N catalyst and its application in synthesis of higher alcohols from syngas
MoO2-Mo2N composite catalyst was prepared by modifying bulk phase Mo2N via RF plasma technique, and its catalytic performance in higher alcohols synthesis from syngas was investigated.The catalysts were characterized by XRD, TEM, XPS and CO-TPD.It was found that during the plasma treatment, the bulk phase Mo2N can recombine with the surface oxygen atoms, which resulted in more active sites on the catalyst.Also there is certain interaction between MoO2and Mo2N.The catalytic performance of the prepared MoO2-Mo2N composite catalyst is improved compared with that of the bulk phase Mo2N.At the reaction temperature of 350℃, the CO conversion rate, the alcohol selectivity, and the alcohol space-time yield reach32.7％, 34.03％, and 79.5mg/ (g·h) respectively.
radio frequency plasmamolybdenum nitridemolybdenum oxidesyngashigher alcohols
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