The rates of propene conversion in the absence of oxygen have been compared with those in the presence of oxygen at the same propene pressures. Over Bi–Mo oxides which are mainly composed of the β-or γ-phase, the rates for propenal formation were 3.5–4.5 times bigger in the presence of oxygen than in the absence of oxygen. In contrast, some Mo- containing oxide catalysts such as MoO3, Co–Mo (1/1), Co–Te–Mo (1/1/1) and other Bi– ...
[Carless, Howard A. J.; Maitra, A. Kumar; Pottinger, Ruth; Frey, Henry M. Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1980 , vol. 76, p. 1849 - 1856]
