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研究了钼掺杂LaVO4催化剂的丙烷氧化脱氢催化性能.加入钼对丙烷氧化脱氢反应有很好的助催化作用.当丙烷转化率恒定在10%和20%时,丙烯选择性在LaMo0.1V0.9O4.05上分别达到了56%和43%,而在LaVO4上仅为36%和22%,这归结为钼掺杂催化剂上有利于丙烯生成的可活动氧物种的增加和催化剂氧化还原性的改变.
The catalytic performance of molybdenum-doped LaVO4 catalysts for propane oxidative dehydrogenation has been studied. The addition of molybdenum has a good promoting effect on the oxidative dehydrogenation of propane. When the propane conversion is constant at 10% and 20%, the selectivity to propylene is in LaMoO. 1V0.9O4.05 reached 56% and 43% respectively, while only 36% and 22% on LaVO4, which was attributed to the increase of active oxygen species on the molybdenum-doped catalyst for propene formation and the reduction of catalyst redox Sexual changes.