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Acta Chimica Sinica >

2012 , Vol. 0 >Issue 04: 385 - 391

DOI: https://doi.org/10.6023/A1109181

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

  • Zhang Cunman ,
  • Zhang Jing ,
  • Gong Zhenhua ,
  • Ma Jianxin
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  • a School of Automotive Studies, Tongji University, Shanghai 201804;
    b Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804

Received date: 2011-09-18

  Revised date: 2011-11-07

  Online published: 2011-12-22

Supported by

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

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Abstract

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穏-1) and large pore volume (0.32 cm3穏-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

Cite this article

Zhang Cunman , Zhang Jing , Gong Zhenhua , Ma Jianxin . Synthesis and Characterization of H2 Combustion Monolithic Catalyst Based on Mesoporous MgAl2O4 Spinel Coating[J]. Acta Chimica Sinica, 2012 , 0(04) : 385 -391 . DOI: 10.6023/A1109181

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