发明公开
EP3263214A1 EXHAUST GAS PURIFICATION CATALYST, MANUFACTURING METHOD THEREFOR, AND EXHAUST GAS PURIFICATION METHOD USING SAME
审中-公开
排气净化催化剂及其制造方法和使用该方法的排气净化方法
- 专利标题： EXHAUST GAS PURIFICATION CATALYST, MANUFACTURING METHOD THEREFOR, AND EXHAUST GAS PURIFICATION METHOD USING SAME
- 专利标题（中）： 排气净化催化剂及其制造方法和使用该方法的排气净化方法
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申请号： EP16755307.2申请日： 2016-02-17
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公开(公告)号： EP3263214A1公开(公告)日： 2018-01-03
- 发明人: KATOH, Satoru , TANABE, Toshitaka , MIURA, Masahide , SUZUKI, Hiromasa , NAITO, Hiroaki , ORI, Hirotaka , NARITA, Keiichi , TAKEUCHI, Michihiko , OHASHI, Tatsuya
- 申请人： Kabushiki Kaisha Toyota Chuo Kenkyusho , TOYOTA JIDOSHA KABUSHIKI KAISHA , Cataler Corporation
- 申请人地址： 41-1, Yokomichi Nagakute-shi, Aichi 480-1192 JP
- 专利权人： Kabushiki Kaisha Toyota Chuo Kenkyusho,TOYOTA JIDOSHA KABUSHIKI KAISHA,Cataler Corporation
- 当前专利权人： Kabushiki Kaisha Toyota Chuo Kenkyusho,TOYOTA JIDOSHA KABUSHIKI KAISHA,Cataler Corporation
- 当前专利权人地址： 41-1, Yokomichi Nagakute-shi, Aichi 480-1192 JP
- 代理机构： Kramer Barske Schmidtchen Patentanwälte PartG mbB
- 优先权： JP2015037879 20150227
- 国际公布： WO2016136560 20160901
- 主分类号： B01J35/10
- IPC分类号： B01J35/10 ; B01D53/94 ; B01J23/63 ; B01J37/02 ; B01J37/08 ; F01N3/28
摘要：
A catalyst for purification of exhaust gas, comprises:
a substrate; and
a catalyst coat layer which is formed on a surface of the substrate and which comprises catalyst particles, wherein
the catalyst coat layer has an average thickness in a range of 25 to 160 µm, and a void fraction in a range of 50 to 80% by volume as measured by a weight-in-water method,
0.5 to 50% by volume of all voids in the catalyst coat layer consist of high-aspect ratio pores which have equivalent circle diameters in a range of 2 to 50 µm in a cross-sectional image of a cross-section of the catalyst coat layer which the cross-section is perpendicular to a flow direction of exhaust gas in the substrate, and which have aspect ratios of 5 or higher, and
the high-aspect ratio pores have an average aspect ratio in a range of 10 to 50.
a substrate; and
a catalyst coat layer which is formed on a surface of the substrate and which comprises catalyst particles, wherein
the catalyst coat layer has an average thickness in a range of 25 to 160 µm, and a void fraction in a range of 50 to 80% by volume as measured by a weight-in-water method,
0.5 to 50% by volume of all voids in the catalyst coat layer consist of high-aspect ratio pores which have equivalent circle diameters in a range of 2 to 50 µm in a cross-sectional image of a cross-section of the catalyst coat layer which the cross-section is perpendicular to a flow direction of exhaust gas in the substrate, and which have aspect ratios of 5 or higher, and
the high-aspect ratio pores have an average aspect ratio in a range of 10 to 50.
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