CPC C04B 38/0009 (2013.01) [C04B 35/195 (2013.01); C04B 2235/3229 (2013.01); C04B 2235/3244 (2013.01); C04B 2235/3481 (2013.01); F01N 3/2828 (2013.01); F01N 2330/30 (2013.01)] | 9 Claims |
1. A porous ceramic structure comprising:
a porous structure body composed of higher than or equal to 75% by mass cordierite; and
Ce- and Zr-containing particles containing Ce and Zr and fixedly attached to the structure body,
wherein the Ce- and Zr-containing particles have:
a fixedly attached portion located inside the structure body;
a protrusion contiguous with the fixedly attached portion and protruding from the structure body; and
an open porosity of the porous structure body is higher than or equal to 25%.
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