Development of apatite-type silicate supported catalysts for purification of exhaust gas to reduce precious metal consumption

2010 Fiscal Year Final Research Report

• Project/Area Number: 20613001
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Element strategy
• Research Institution: Akita University
• Principal Investigator: KATO Sumio Akita University, 大学院・工学資源学研究科, 准教授 (50233797)
• Co-Investigator(Kenkyū-buntansha): NAKATA Shinichi 秋田大学, 大学院・工学資源学研究科, 教授 (70312692)
• Project Period (FY): 2008 – 2010
• Keywords: 排ガス浄化触媒 / 貴金属 / アパタイト / 環境材料 / 元素戦略

Research Abstract

Development of apatite-type silicate supported Pt catalysts for purification of exhaust gas was performed. It was found that the apatite-type silicate supported catalyst containing La and Ba exhibited higher catalytic activity for NO reduction than conventional Al_2O_3 supported catalyst. The composition of the apatite-type supports affected chemical state of Pt, resulting in an effective promotion of a catalyst performance.

Research Products

• [Journal Article] NO reduction property of apatite-type La_8A_2Si_6O_<26> (A=Ca, Sr, Ba) supported Pt catalyst (2011)
  • Author(s): A.Ono, M.Abe, S.Kato, M.Ogasawara, T.Wakabayashi, Y.Nakahara, S.Nakata
  • Journal Title: Appl.Catal.B 103 Pages: 149-153
  • Peer Reviewed
• [Presentation] NO reduction property of (La,A)_<10>Si_6O_<26>solid solution (A=Ca, Sr, Ba) supported Pt catalysts (2010)
  • Author(s): A.Ono, M.Abe, S. Kato, S.Akiyama, M.Ogasawara, S. Nakata, T.Wakabayashi, Y.Nakahara
  • Organizer: The 6th Tokyo Conference on Advanced Catalytic Science and Technology (TOCAT6)
  • Place of Presentation: Sapporo
  • Year and Date: 2010-07-22
• [Presentation] アパタイト型La_8A_2Si_6O_<26>(A=Ca, Sr, Ba)担持Pt触媒の調製と窒素酸化物浄化特性 (2010)
  • Author(s): 小野富雅,加藤純雄,小笠原正剛,中田真一,若林誉,中原祐之輔
  • Organizer: 第20回日本素材物性学会年会
  • Place of Presentation: 秋田
  • Year and Date: 2010-06-22
• [Presentation] Preparation and NO reduction property of (Ln,A)_<10>Si_6O_<26> solid solution (Ln : lanthanide, A : alkali earth) supported Pt catalysts (2009)
  • Author(s): A.Ono, M.Abe, S. Kato, M.Ogasawara, S.Nakata, T.Wakabayashi, Y.Nakahara
  • Organizer: The 12th Japan- Korea Symposium on Catalysis
  • Place of Presentation: Akita
  • Year and Date: 2009-10-15
• [Presentation] アパタイト型ケイ酸塩担持Pt触媒のNOx還元特性に対する担体組成の影響 (2009)
  • Author(s): 阿部晃聡,加藤純雄,小笠原正剛,中田真一,若林誉,中原祐之輔
  • Organizer: 平成21年度化学系学協会東北大会
  • Place of Presentation: 郡山
  • Year and Date: 2009-09-21