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发明授权
CN106943874B 废气净化装置 有权

废气净化装置
摘要：
本发明提供一种能够防止催化剂层的剥离的废气净化装置。本发明的废气净化装置包括具有多孔性的分隔壁(16)的壁流结构的基体材料和保持于分隔壁(16)的内部细孔的催化剂层。催化剂层包含具有氧吸存能力的OSC材料作为载体。在分隔壁(16)的厚度方向，入侧区域(16a)中的内部细孔的空隙率为25％以上，且保持于该内部细孔的催化剂层的平均占有率为75％以下。
摘要（英）：

The exhaust gas purification device according to the present invention includes a substrate of wall flow structure having a porous partition wall 16, and a catalyst layer held in internal pores of the partition wall 16. The catalyst layer contains, as a carrier, an OSC material having oxygen storage capacity and a noble metal supported on the carrier. In the thickness direction of the partition wall 16, the porosity of the internal pores in inlet regions 16a is 25% or higher, and an average occupation ratio of the catalyst layer held in the internal pores is 75% or lower.

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