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.
出处
《应用激光》
CSCD
北大核心
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
关键词
烯烃歧化
激光合成
陶瓷催化剂
二氧化碳激光器
high power CO_2 laser
metathesis of define
laser synthesis
WO_3/Fe_2O_3
ceramic catalyst
