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Abstract:
Three-dimensionally ordered macroporous (3DOM) cubic perovskite-type oxides SrFeO3-delta were prepared using the citrate acid-assisted poly(methyl methacrylate)-templating method in the presence of ethylene glycol, sucrose or L-lysine (denoted as SFO-0. SFO-Sucrose, and SFO-Lysine, respectively). It is found that the SrFeO3-delta samples possessed a 3DOM architecture and were high in surface area (34-61 m(2)/g). The porous SrFeO3-delta catalysts performed well in toluene combustion, with the SFO-0 sample exhibiting the highest catalytic activity (T-50% = 292 degrees C and T-90% = 340 degrees C at 20,000 mL/(g h)). The catalytic activity of the samples showed a good relationship with surface area, oxygen adspecies concentration, and low-temperature reducibility, all decrease in the order of SFO-0 > SFO-Lysine > SFO-Sucrose >> SFO-bulk. It is deduced that the good catalytic performance of the porous SrFeO3-delta materials is due to the good low-temperature reducibility, large surface area, and high oxygen adspecies concentration. (C) 2012 Elsevier B.V. All rights reserved.
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APPLIED CATALYSIS A-GENERAL
ISSN: 0926-860X
Year: 2012
Volume: 425
Page: 153-160
5 . 5 0 0
JCR@2022
ESI Discipline: CHEMISTRY;
JCR Journal Grade:1
CAS Journal Grade:2
Cited Count:
WoS CC Cited Count: 59
SCOPUS Cited Count: 62
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 6
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