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Abstract:
Porous LaFeO3 (LFO) samples with surface areas of 15-26 m(2)/g and orthorhombic structures were prepared via a glucose-assisted hydrothermal route. Physicochemical properties of the materials were characterized by means of a number of techniques, and their catalytic activities were evaluated for toluene combustion. It is found that the sample (LFO-170) derived at a hydrothermal temperature of 170 degrees C possessed the highest surface area and surface oxygen concentration and the best low-temperature reducibility. Among the LFO samples, the LFO-170 sample showed the best performance for toluene combustion, giving the T-10%, T-50%, and T-90% of 180, 250, and 270 degrees C at space velocity=20,000 mL/(g h), respectively. The apparent activation energies of the LFO samples were 50-55 kJ/mol. We believe that the high surface area and surface oxygen concentration and good low-temperature reducibility were responsible for the good catalytic performance of the LFO-170 sample. (C) 2012 Elsevier Inc. All rights reserved.
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JOURNAL OF SOLID STATE CHEMISTRY
ISSN: 0022-4596
Year: 2013
Volume: 199
Page: 164-170
3 . 3 0 0
JCR@2022
ESI Discipline: CHEMISTRY;
JCR Journal Grade:2
CAS Journal Grade:3
Cited Count:
WoS CC Cited Count: 38
SCOPUS Cited Count: 45
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 5
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