镍含量对NiCoPrLa类水滑石及衍生复合氧化物的催化性能影响  

The Influence of Ni Content on NiCoPrLa Hydrotalcite-like Compounds and the Catalytic Performances of Its Derived Composite Oxides

作　　者：刘凌轩 

机构地区：[1]中海炼化惠州炼化分公司,广东惠州516086

出　　处：《广东化工》2015年第5期32-33,共2页Guangdong Chemical Industry

摘　　要：用共沉淀法制备了镍含量不同的NiCoPrLa类水滑石,用FT-IR、SEM、TPD等对NiCoPrLa类水滑石及衍生复合氧化物的结构、表面形貌和催化性能进行表征。结果表明,随着Ni2+含量增大,3-6Ni/NCL-HT样品显示了较好的乙醇解离吸附性能。在Co3+含量不变的条件下,Ni2+含量增大,NiCoPrLa类水滑石衍生复合氧化物抗积碳能力逐渐下降。NiCoPrLa hydrotalcite-like compounds with different Ni content were prepared by coprecipitation.The structure,surface topography and catalytic performances of NiCoPrLa hydrotalcite-like compounds and its derived composite oxides were characterized with FT-IR、SEM and TPD.With the increase of Ni2＋content,3-6Ni/NCL-HT showed better dissociation and adsorption performance.Under the same content of Co3＋,with the increase of Ni2＋ content,the antiaccumulation of carbon of its derived composite oxides decreased.

关 键 词：镍含量 NiCoPrLa类水滑石 催化性能 

分 类 号：TQ[化学工程]