Acta Chimica Sinica ›› 2012, Vol. 0 ›› Issue (04): 385-391.DOI: 10.6023/A1109181     Next Articles

Full Papers

介孔MgAl2O4 涂层整体式氢气燃烧催化剂的制备与表征

张存满a,b, 张靖a,b, 宫振华b, 马建新a,b   

  1. a 同济大学汽车学院 上海 201804;
    b 同济大学新能源汽车工程中心 上海 201804
  • 投稿日期:2011-09-18 修回日期:2011-11-07 发布日期:2011-12-22
  • 通讯作者: 张存满, 马建新
  • 基金资助:

    国家高技术研究与发展技术(No. 2006AA11A187)资助项目.

Synthesis and Characterization of H2 Combustion Monolithic Catalyst Based on Mesoporous MgAl2O4 Spinel Coating

Zhang Cunmana,b, Zhang Jinga,b, Gong Zhenhuab, Ma Jianxina,b   

  1. a School of Automotive Studies, Tongji University, Shanghai 201804;
    b Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804
  • Received:2011-09-18 Revised:2011-11-07 Published:2011-12-22
  • Supported by:

    Project supported by the National High Technology Research and Development Program (No. 2006AA11A187).

A novel method to prepare mesoporous MgAl2O4 coating on the honeycomb cordierite ceramics from only inorganic salt and alkali by the generalized Lewis acid-base theory was reported. The Pt-based monolithic catalysts were prepared successfully after CexZr1-xO2 modified and Pt loaded by in-situ acid-alkali reaction. The samples were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), and N2-sorption. The results showed that the coating had uniform microcrystal structure as well as high surface area (>250 m2-1) and large pore volume (0.32 cm3-1). The investigations of H2 catalytic combustion showed these monolithic catalysts could fastly start up even at room temperature, and H2 initial conversion could reach more than 95%.

Key words: hydrogen catalytic combustion, monolithic catalyst, acid-alkali theory, porous MgAl2O4, ceria-zirconia solid solution