Abstract
Nitrogen-doped carbon nanotubes (NCNTs) supported NiO (NiO/NCNTs) were prepared for catalyzing the oxidation removal of toluene. Characterization and catalysis tests showed the oxygen adspecies concentration and low-temperature reducibility of NiO/NCNTs increased with increasing the doped graphitic-like N (NG) content of NCNTs, in good agreement with the trend of the catalytic performance of NiO/NCNTs. The optimized NiO/NCNTs-d catalyst with NG content of 6.22at.% can achieve a completed conversion of toluene at 248°C, and has a TOF value of nearly 10 times to NiO/CNTs at 160°C. Therefore, these results may lead to a new strategy for exploring the advanced catalysts based on the carbon nanomaterials with abundant NG for the catalytic elimination of air pollutants.
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