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从钼磷酸出发制备了Ｂｉ４ＰＭｏ１２Ｏ４９催化剂．ＩＲ及ＸＲＤ分析结果表明，高温焙烧后其基本组成为α－Ｂｉ２Ｍｏ３Ｏ１２／ＭｏＯ３。考察了该催化剂对丙烷的选择氧化活性．ＥＳＲ及ＸＰＳ测定结果表明，反应后催化剂中Ｍｏ５＋的含量明显增加．这暗示着反应物种吸附在Ｍｏ６＋上，而Ｂｉ则为气相氧的入口．
Bi4PMo12O49 catalyst was prepared from molybdophosphoric acid. The results of IR and XRD show that the basic composition of α-Bi2Mo3O12 / MoO3 is calcined at high temperature. The selective oxidation activity of propane on the catalyst was investigated. The results of ESR and XPS showed that the content of Mo5 + in the catalyst increased obviously after the reaction. This implies that the reactive species is adsorbed on Mo6 + and Bi is the inlet for vapor phase oxygen.