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Citation: WANG Lin, CHEN Shun-Quan, LIU Yuan. NiO/LaMnO₃ Catalysts for Steam Reforming of Ethanol[J]. Acta Physico-Chimica Sinica, ;2008, 24(05): 849-854. doi: 10.3866/PKU.WHXB20080520 shu

NiO/LaMnO₃ Catalysts for Steam Reforming of Ethanol

1.
School of Chemical Engineering, Tianjin University, Tianjin 300072, P. R. China

Received Date: 6 November 2007
Available Online: 27 February 2008

Perovskite type oxides supported nickel catalysts NiO/LaMnO3 were prepared by citric-complexing and impregnation method and used for H2 production by steam reforming of ethanol. The influence of nickel content and the calcination temperature on the catalytic performance was investigated. The catalysts were characterized by temperature programmed reduction (TPR), X-ray diffraction (XRD), and thermal analysis techniques. The catalysts showed very od catalytic performance. The NiO/LaMnO3 catalyst with NiO content of 15% (mass fraction, w) in catalysts and calcined at 700 ℃ exhibited the highest activity. Nearly 100% conversion of ethanol was observed over this catalyst at reaction temperature of 400 ℃, in reaction mixtures of 20%(volume fraction, φ) C2H5OH+H2O and 80% (φ) N2 with a molar ratio of water and ethanol of 3:1 and at a gas hourly space velocity (QHSV) 80000 mL·h-1·g-1 cat. Bycombining catalytic performance and characterization results, it was proposed that the high activity was ascribed to the metal nickel reduced fromnickel ions in the lattice of perovskite type oxides.
- Ethanol; Steamreforming; LaMnO3; Nickel; Perovskite type oxide; Fuel cell
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沈阳化工大学材料科学与工程学院沈阳 110142

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NiO/LaMnO3 Catalysts for Steam Reforming of Ethanol

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NiO/LaMnO₃ Catalysts for Steam Reforming of Ethanol