新型纳米钒催化剂的制备及性能研究  

Study about Preparation and Property of a New Type of Nanometer Vanadium Catalyst

作　　者：杨绍利[1,2,3] 潘复生[1] 彭富昌[2,3] 高仕忠[2,3] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400030 [2]四川省钒钛材料工程技术研究中心,攀枝花617000 [3]钒钛资源综合利用四川省重点实验室,攀枝花617000

出　　处：《材料导报（纳米与新材料专辑）》2008年第2期24-26,共3页

基　　金：教育部"春晖计划"资助项目(Z2004-2-51004);四川省科技厅重点科技项目(2006J13-015)

摘　　要：以工业V_2O_5为原料,采用Sol-gel法制备含纳米V_2O_5颗粒的溶胶和凝胶,并以此胶体为活性组分、山东硅藻土为载体制得一种新型纳米钒催化剂。经分析表明,硅藻土的化学成分和粒度分布满足催化剂载体要求。TEM和SEM的研究显示,胶体中V_2O_5颗粒形貌呈针状或球状,催化剂中的活性组分V_2O_5颗粒大小仍然处于纳米级别且分散均匀。性能测试表明,纳米钒催化剂具有较高的活性和强度,超过了国家化工行业标准。A new type of nanometer vanadium catalyst is prepared by Shandong diatomite and gelation with nanosized V2O5 particles, which is prepared via sol-gel method using industrial V2O5 as raw materials. The granularity and component of diatomite are analyzed. The micro-shape of V2O5 is studied by TEM and SEM. The results show that V2O5 particles have acicular-shape or sphere in the colloid, retain nano-particles and disperse proportionally in the catalyst. The strength and activity of the catalyst are outstanding.

关 键 词：纳米V2O5 催化剂 制备 性能 

分 类 号：TQ426.6[化学工程]