1. Catalytic combustion of toluene over platinum supported on Ce–Zr–O solid solution modified by Y and Mn
- Author
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Zhi Min, Liu, Jian Li, Wang, Jun Bo, Zhong, Yao Qiang, Chen, Sheng Hui, Yan, and Mao Chu, Gong
- Subjects
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HAZARDOUS substances , *CATALYSIS , *TOLUENE , *COMBUSTION , *PHOTOSYNTHETIC oxygen evolution , *OXIDES , *X-ray diffraction - Abstract
A series of CeO2–ZrO2 mixed oxides were prepared using coprecipitation method and characterized by BET, oxygen storage capacity (OSC), X-ray diffraction (XRD) and H2-temperature-programmed reduction (H2-TPR). The catalytic activities toward toluene combustion were investigated in a micro-reactor. The results demonstrate that the catalytic activity of Pt/γ-Al2O3/Ce0.50Zr0.50O2 monolithic catalyst can be greatly improved by doping metal into Ce0.50Zr0.50O2. When doping Y and Mn into Ce0.50Zr0.50O2 simultaneously, the catalyst Pt/γ-Al2O3/Ce0.40Zr0.40Y0.10Mn0.10O X shows the highest activity. The T 10 (the temperature of 10% toluene conversion) and the complete conversion temperature (the temperature of 90% toluene conversion) of toluene are 443 and 489K, respectively. Gas hourly space velocity (GHSV) results show that the prepared catalyst can be applied in a wide range of GHSV (from 12,000 to 20,000h−1). The catalyst prepared shows great potential for practical application. [Copyright &y& Elsevier]
- Published
- 2007
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