高等学校化学研究 ›› 2004, Vol. 20 ›› Issue (4): 452-456.
Characterizations of Skeletal Iron Catalysts Prepared from Rapidly and Naturally Quenched Fe-Al Alloys
LUO Ge1, YAN Shi-run1, QIAO Ming-hua1, ZHANG Kai2, HU Hua-rong1, HE He-yong1, FAN Kang-nian1
- 1. Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China;
2. Department of Chemical Engineering, University College London, London WC1E 7JE, UK
Characterizations of Skeletal Iron Catalysts Prepared from Rapidly and Naturally Quenched Fe-Al Alloys
LUO Ge1, YAN Shi-run1, QIAO Ming-hua1, ZHANG Kai2, HU Hua-rong1, HE He-yong1, FAN Kang-nian1
- 1. Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China;
2. Department of Chemical Engineering, University College London, London WC1E 7JE, UK
摘要： Surface morphology, physical-chemical properties of skeletal iron catalysts prepared by leaching of the rapidly quenched(RQ) and naturally quenched(NQ) Fe-Al alloys with an aqueous solution of NaOH were characterized by using a series of techniques including XRD, BET, XPS, SEM, H2 and CO-TPD.It was found that the RQ skeletal iron catalyst exhibits a smaller particle size, larger specific surface area and pore volume than the NQ one.The H2 and CO-TPD experiments showed that the RQ skeletal iron exhibits stronger affinity for H2 and milder affinity for CO compared with the NQ one.But the NQ skeletal catalyst shows a better thermal stability than the RQ catalyst.