发明授权
US08105561B2 Catalyst for purification of exhaust gas, regeneration method for the catalyst, and apparatus and method for purification of exhaust gas using the catalyst
失效
用于净化废气的催化剂，催化剂的再生方法，以及使用该催化剂净化废气的装置和方法
- 专利标题： Catalyst for purification of exhaust gas, regeneration method for the catalyst, and apparatus and method for purification of exhaust gas using the catalyst
- 专利标题（中）： 用于净化废气的催化剂，催化剂的再生方法，以及使用该催化剂净化废气的装置和方法
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申请号： US12225692申请日： 2006-12-01
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公开(公告)号： US08105561B2公开(公告)日： 2012-01-31
- 发明人: Miho Hatanaka , Toshitaka Tanabe , Yasutaka Nagai , Toshio Yamamoto , Kazuhiko Dohmae , Nobuyuki Takagi , Masahide Miura , Yasuo Ikeda
- 申请人： Miho Hatanaka , Toshitaka Tanabe , Yasutaka Nagai , Toshio Yamamoto , Kazuhiko Dohmae , Nobuyuki Takagi , Masahide Miura , Yasuo Ikeda
- 申请人地址： JP Aichi-Gun JP Toyota
- 专利权人： Kabushiki Kaisha Toyota Chuo Kenkyusho,Toyota Jidosha Kabushiki Kaisha
- 当前专利权人： Kabushiki Kaisha Toyota Chuo Kenkyusho,Toyota Jidosha Kabushiki Kaisha
- 当前专利权人地址： JP Aichi-Gun JP Toyota
- 代理机构： Oliff & Berridge, PLC
- 优先权： JP2006-089120 20060328; JP2006-089177 20060328; JP2006-089186 20060328; JP2006-089193 20060328
- 国际申请： PCT/JP2006/324068 WO 20061201
- 国际公布： WO2007/111004 WO 20071004
- 主分类号： B01J23/40
- IPC分类号： B01J23/40 ; B01J23/38 ; B01J23/42 ; B01D53/56 ; B01D53/34 ; G05D23/00
摘要：
A catalyst for purification of exhaust gas in which a noble metal is supported on a metal-oxide support wherein, in a oxidation atmosphere, the noble metal exists on the surface of the support in high oxidation state, and the noble metal binds with a cation of the support via an oxygen atom on the surface of the support to form a surface oxide layer and, in a reduction atmosphere, the noble metal exists on the surface of the support in a metal state, and an amount of noble metal exposed at the surface of the support, measured by CO chemisorption, is 10% or more in atomic ratio to a whole amount of the noble metal supported on the support.