Mesoporous Co3O4 (meso-Co3O4) and Co3O4 nanoparticles supported on mesoporous silica SBA-15 (Co/SBA-15) were prepared by hydrothermal synthesis and an impregnation method, respectively. Although the as-prepared meso-Co3O4 had mesopores and a higher surface area comparable to that of Co/SBA-15, its catalytic activity for N2O decomposition was much lower than that of Co3O4/SBA-15. The low catalytic...
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