Pore geometry influence on the deactivation behavior of Ni-based catalysts for simultaneous production of hydrogen and nanocarbon
作者： J. Salmones , J.A. Wang , M.A. Valenzuela , E. Sánchez , A. Garcia
DOI: 10.1016/J.CATTOD.2009.03.005
关键词: Hydrogen production 、 Heterogeneous catalysis 、 Decomposition 、 Mesoporous material 、 Geometry 、 Hydrogen 、 Mixed oxide 、 Catalysis 、 Chemistry 、 Methane
摘要: Abstract Pore geometry of Ni-containing Mg–Al–O mixed oxide catalysts could be controlled by varying the Ni content in synthesis. Low may lead to having mesopores with shape cylinder and narrow pore size distribution; high results catalyst pores ink-bottle a wide distribution. In methane decomposition produce hydrogen nanocarbon, 50 wt.% Ni/Mg–Al–O was rapidly deactivated after 2 h reaction; however, 15 25 wt.% showed much longer lifetime, which can explained assuming new modal related catalysts.
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