纳米钒催化剂与传统钒催化剂的微观形貌及性能对比分析  

The Comparative Analysis of Micro-topography and Performance for the Nano-vanadium Catalysts and Traditional Vanadium Catalysts

作　　者：马兰[1,2] 杨绍利[2] 潘复生[3] 

机构地区：[1]攀枝花学院材料工程学院,攀枝花617000 [2]四川省钒钛材料工程技术研究中心,攀枝花617000 [3]重庆大学材料科学与工程学院,重庆400030

出　　处：《材料导报（纳米与新材料专辑）》2011年第2期73-75,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：从微观形貌、催化活性、机械强度等方面将纳米钒催化剂和国内外同类型传统钒催化剂进行了对比,经分析表明,在加热和使用状态下,纳米钒催化剂中的V2O5均以微小颗粒形式存在,而传统钒催化剂活性组分却生成低熔点的液相物质;在V2O5含量比国家化工行业标准低的条件下,纳米钒催化剂的活性和机械强度均超过国家化工行业标准,达到或超过国内外同类产品。The nano-vanadium catalysts were compared with traditional vanadium catalysts of the same type in micro-topography, catalytic activity and mechanical strength. The analysis shows that V2O5 always present in the form of tiny particles when the nano-vanadium catalysts are heated or in use while active component of the traditional vanadium catalysts generated liquid material of low-melting-point. In the condition that the V2 O5 content is lower than national standards for chemical industry, the activity and mechanical strength of the nano-vanadium catalysts both exceed the national standards, get close to or even exceed the same kind products abroad.

关 键 词：钒催化剂 微观形貌 活性 强度 对比分析 

分 类 号：TQ426.81[化学工程]