用于碳烟燃烧的Ag(x)-Mn1Co2.3多孔纳米片催化剂的制备与性能研究
Preparation and performance study of Ag(x)-Mn1Co2.3 porous nanosheet catalysts for soot combustion
胡苗苗 1李苑君 1徐起翔 1李妍 2刘运权2
作者信息
- 1. 郑州大学生态与环境学院,河南 郑州 450001
- 2. 厦门大学能源学院,福建 厦门 361102
- 折叠
摘要
采用等体积浸渍法制备了一系列Mn1Co2.3复合物负载不同质量分数Ag颗粒的催化剂,并用于碳烟颗粒的催化燃烧.结果表明,制得的Ag(10)-Mn1Co2.3在松散接触模式以及10％O2/Ar+10％H2O(g)+500 μL/L NOx 辅助气氛条件下表现出最佳的催化活性,其T10、T50和T90分别为293、338℃和375℃.负载Ag不仅提高了催化剂的本征活性,而且Mn1Co2.3所具有的多孔纳米片形貌使该催化剂与反应物之间具有良好的固-固接触效率.
Abstract
A series of catalysts with different amounts of Ag loaded on Mn1Co2.3 are prepared via the equal volume incipient wetness impregnation method,and applied in the catalytic combustion of soot particles.The test results show that the prepared Ag(10)-Mn1Co2.3 exhibits the best catalytic activity under loose contact mode with 10％O2/Ar+10％H2 O(g)+500 μL·L-1 NOx auxiliary atmosphere,and its T10,T50 and T90 are 293℃,338℃and 375℃,respectively.The good performance might be due to that the loaded Ag improves the intrinsic activity of the catalysts,while the porous nanosheet morphology of Mn1Co2.3 allows a good contact efficiency between the catalyst and soot.
关键词
催化燃烧/碳烟颗粒/多孔纳米片/Ag负载Key words
catalytic combustion/soot particles/porous nanosheets/Ag loading引用本文复制引用
基金项目
国家重点研发计划(2017YFC0212400)
出版年
2024
NETL
NSTL
万方数据