The Effect of Substrate Volume on the Catalytic Behavior of Pd/Rh Three-Way Catalysts
In this paper,Pd/Rh series catalyst substrate samples were prepared at the same cell density,with different volume.The fresh catalyst was aged.And Catalyst test by light-off factor (LOF).The results tested demonstrated that,for the same cell density of substrate,the increase of substrate volume benefited to obtain lower light-off temperature.It was effective measurement that higher cell density enlarged the operating window of catalyst.When the volume of substrate increased by 40%,catalyst light-off temperature decreased 5-10℃,the range of the air-fuel ratio is enlarged in 0.43.And it is role equivalent to the density of the cell density in additive quantity of 50% or Pd/Rh in additive quantity of 20%.
Catalyst Substrate volume LOF
WeiJun Zhang Jin Hu Youyan Duan Yunbiao Duan Lin Su Na Zhao
Kunming University of Science and Technology,Kunming 650093,China Kunming Metellurgy College,Kunming 650033,China
国际会议
桂林
英文
295-298
2012-07-16（万方平台首次上网日期，不代表论文的发表时间）