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Direct Oxidation of Isobutane into Methacrylic Acid over Cs, Ni, and V-substituted H_3PMo_(12)O_(40) Heteropoly Compounds

机译:用Cs,Ni和V取代的H_3PMO_(12)O_(40)杂多化合物将异丁烷直接氧化成甲基丙烯酸。(12)o_(40)杂多化合物

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Keggin-type heteropolymolybdates have been found to catalyze the selective oxidation of isobutane with molecular oxygen. The preferable contents of Cs and V are 2.5 and 1, respectively, and the addition of Ni enhanced the catalytic activity for the oxidation of isobutane. The presence of steam did not affected the catalytic performance very much. Cs_(2.5)Ni_(0.08)H_(1.34)PVMo_(11)O_(40) also catalyzed the oxidation of propane and ethane. It was suggested by IR, XRD, and ~(31)P NMR data that the Keggin structure was maintained during the oxidation.
机译:已经发现Keggin型杂多元斑酸盐用分子氧来催化异丁烷的选择性氧化。 Cs和V的优选含量分别为2.5和1,并加入Ni增强了异丁烷氧化的催化活性。 蒸汽的存在非常不影响催化性能。 CS_(2.5)Ni_(0.08)H_(1.34)PVMO_(11)O_(40)还催化了丙烷和乙烷的氧化。 它是由IR,XRD和〜(31)P NMR数据建议的,即Keggin结构在氧化过程中保持。

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