大功率CO_2激光合成WO_3／Fe_2O_3新型陶瓷催化剂──Ⅰ．WO_3／Fe_2O_3烯烃歧化反应催化剂的合成及性质  

Studies on the Novel WO_3/Fe_2O_3 Catalyst Synthesized by a High Power CO_2 Laser under Nonequilibrium Condition──Ⅰ.Synthesis and Properties of the WO_3/Fe_2O_3 Catalyst for Metathesis of Olefine

作　　者：郑芳[1] 詹正坤[1] 湛昌国[1] 陶星之[1] 王涛[1] 辜建辉 郑启光[1] 李再光[1] 

机构地区：[1]武汉工业大学新材料研究所,华中师范大学化学系,华中理工大学激光技术实验室

出　　处：《应用激光》1996年第5期199-203,共5页Applied Laser

基　　金：国家自然科学基金;激光技术国家实验室基金

摘　　要：用大功率ＣＯ_２激光合成出ＷＯ_３／Ｆｅ_２Ｏ_３新型烯烃歧化反应陶瓷催化剂分析。表明，该陶瓷催化剂的组成相为Ｆｅ３Ｏ４，ＦｅＷＯ４及ＷＯ３。它是一种多孔的，晶粒大小为μｍ级的陶瓷品，Ｆｅ３Ｏ４相中含有杂质钨，其氧化态低于＋６价，为该类催化剂具有烯烃歧化反应催化作用的主要活性中心。In this paper,the laser synthesis technique of the ceramics has been employed to synthesize a novel WO3/Fe2O3 catalyst for metathesis of define under nonequilibrium condition.The results obtained reveal that the synthesized catalyst is composed of Fe3O4,FeWO4 and WO3The catalyst is porous with the size of its composition phases in the order of micometer,the Fe3O4phase in the catalyst contains W atoms as impurity. These W atoms in the Fe3O4 phase have a valence lower than +6,and are the active sites of the catalyst for the metathesis of define.

关 键 词：烯烃歧化 激光合成 陶瓷催化剂 二氧化碳激光器 

分 类 号：TQ426.7[化学工程] TN248.22[电子电信—物理电子学]