期刊
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
卷 19, 期 6, 页码 1903-1909出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2013.02.034
关键词
LaB0.5Co0.5O3 perovskite; Sol-gel auto combustion; Nano mixed oxides; Volatile organic compounds; TPR
资金
- Iranian Nanotechnology Initiative Council
The correlation between physical-chemical properties and activities of LaB0.5Co0.5O3 (B = Cr, Mn, Cu) nano perovskites was studied in combustion of toluene. LaMn0.5Co0.3O3 showed the highest activity among LaB0.5Co0.3O3 catalysts and further optimization study was focused on LaMnxCo1-xO3 (x = 0.1, 0.25, 0.5). The activity and reducibility of catalysts improved due to partial substitution of Co3+ by B cation. No direct relationship was between surface area and catalyst activity. T-50% of 2-propanol over LaMn0.25Co0.75O3, LaMn0.5Co0.3O3, LaMn0.1Co0.9O3 and LaCoO3 was 168, 200, 220 and 229 degrees C, respectively. LaMn0.25Co0.75O3 was the optimum catalyst and showed robust stability in combustion of toluene and 2-propanol. (C) 2013 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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