近二十年来,表面氧物种的研究,引起人们极大的兴趣.Kung等考察过丁烯在Fe_2O_3上的氧化脱氢性能,并根据Ramard-Massoth机理,认为对丁烯起氧化脱氢作用的是O~-物种.Haber等则认为,O_2~-和O~-这类亲电子物种与烯烃作用将分别导致过氧、或氧桥活性复合物的形成.这些属氧化中间络合物的最终结果是使烯烃向一氧化碳、二氧化碳转化.Bonnelle等为一些复合氧化物上的O~-物种属全氧化物种.而O~(2-)才是选择氧化的活 Nearly two decades, the research of surface oxygen species aroused great interest.Kung et al investigated the oxidative dehydrogenation of butene on Fe 2 O 3, and according to the Ramard-Massoth mechanism, it was considered that the oxidative dehydrogenation of butene Is O ~ - species.Haber so that the O_2 ~ - and O ~ - such electrophilic species and alkene will lead to the formation of peroxo, respectively, or oxygen bridge activity of these complexes is the final oxidation of the intermediate The result is the conversion of olefins to carbon monoxide and carbon dioxide. Bonnelle et al. Are O ~ -pecies-fully oxidized species on some complex oxides, whereas O ~ (2-)