| abstract |
A honeycomb structure capable of improving exhaust gas purification performance while suppressing an increase in pressure loss is provided. A honeycomb structure 20 includes a porous partition wall 22 that forms a plurality of cells serving as fluid flow paths. The partition wall 22 has an average pore diameter of 10 μm to 20 μm, and the partition wall 22 The wetted area ratio R (= S / V), which is the ratio of the volume V to the wetted area S of the pores, is 0.000239 μm −1 or more. The honeycomb structure 20 may have a partition wall portion 22 with a porosity of 50% to 65%. In the raw material mixing step, the honeycomb structure 20 includes 100% by mass of a ceramic raw material, a water-absorbing polymer having an average particle diameter of 20 μm or more after water absorption and 2% by mass or more before water absorption, and 0.5% by mass. You may manufacture by containing the above zirconia. [Selection] Figure 1 |