| 摘要 |
There is disclosed a honeycomb structure which is suitably used as a catalyst carrier to purify an exhaust gas. Partition walls 1 to divide and form cells 2 are provided with small pores 16 having pore diameters which are smaller than 14 µm and large pores 15 having pore diameters of 14 µm or larger, a porosity of the partition walls 1 is from 50 to 70%, a porosity of the large pores 15 of the partition walls 1 is 30% or larger, a ratio of a total volume of the small pores 16 to a total volume of the large pores 15 is 20% or larger, and in a graph showing a pore diameter distribution of the partition walls 1, the pore diameter at a maximum peak value of the large pores 15 is from 20 to 200 µm, and the pore diameter at a maximum peak value of the small pores 16 is from 0.1 to 8 µm. Furthermore, a value obtained by dividing a porosity value (%) of the large pores 15 by a thickness value (µm) of the partition walls 1 is 0.2 or larger in a honeycomb structure 100. |
