Cu掺杂CeO_(2)纳米材料的制备及催化一氧化碳氧化的研究  

Study on Preparation of Cu Doped CeO_(2) Nanomaterials and Enhanced Catalytic Activity for CO Oxidation

作　　者：陈晓磊 祝贺成 黄腾 CHEN Xiaolei;ZHU Hecheng;HUANG Teng(Huludao Project Development Service Center,Huludao Liaoning 125000,China;Panjin Industrial Technology Innovation and R&D Base Construction Engineering Center,Panjin Liaoning 124000,China;Jinxi Research Institute of Chemical Industry Co.,Ltd.,Huludao Liaoning 125000,China)

机构地区：[1]葫芦岛市项目发展服务中心,辽宁葫芦岛125000 [2]盘锦市产业技术创新和研发基地建设工程中心,辽宁盘锦124000 [3]锦西化工研究院有限公司,辽宁葫芦岛125000

出　　处：《辽宁化工》2024年第6期905-908,共4页Liaoning Chemical Industry

摘　　要：实验采用溶剂热和高温处理的方法制备了不同铜负载量的多孔纳米CuCeO_(2)催化剂,通过SEM、XRD、TEM及XPS等对复合催化剂的形貌、结构、性能等进行了表征。考察了掺杂0~10%的CuCeO_(2)催化剂对一氧化碳氧化的催化影响。研究结果表明,与CeO_(2)相比,Cu掺杂的CeO_(2)复合空心微球表现出更强的CO氧化活性,随着Cu质量分数的增加,Cu掺杂的CeO_(2)的催化活性先增加后减少,其中,5%CuCeO_(2)催化剂催化活性最好,一氧化碳在140oC即被完全氧化。Porous nano CuCeO_(2) catalysts with different copper loadings were prepared by solvothermal and high temperature treatment.The morphology,structure and properties of the composite catalysts were characterized by SEM,XRD,TEM and XPS.The catalytic effect of CuCeO_(2) doped with 0~10%on carbon monoxide oxidation was investigated.The results showed that,compared with CeO_(2),Cu-doped CeO_(2) composite hollow microspheres had stronger CO oxidation activity.With the increase of Cu content,the catalytic activity of Cu-doped CeO_(2) first increased and then decreased.Among them,5%CuCeO_(2) catalyst had the best catalytic activity,and carbon monoxide was completely oxidized at 140℃.

关 键 词：二氧化铈 催化氧化 溶剂热法 一氧化碳氧化 

分 类 号：TQ032.41[化学工程]