| 摘要 |
PROBLEM TO BE SOLVED: To enhance combustion efficiency of particulates by optimally designing open pores of a cell bulkhead and using even pore interiors as catalytic reaction fields. SOLUTION: A total opening area of open pores opened in a cell bulkhead surface is provided at >=30% of a total surface area of the cell bulkhead, and a total opening area of large open pores with opening pore size of >=30 μm is provided at >=50% of the total surface area. The particulates can be collected not only on a surface of the cell bulkhead but also in the pore interiors, and so, the particulates and catalytic metal can be contacted by using even surfaces of the pore interiors. |
