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Insights into the Low‐temperature Synthesis of LaCoO3 Derived from Co(CH3COO)2via Electrospinning for Catalytic Propane Oxidation.
- Source :
- Chinese Journal of Chemistry; Feb2020, Vol. 38 Issue 2, p144-150, 7p
- Publication Year :
- 2020
-
Abstract
- Summary of main observation and conclusion: A series of electrospun LaCoO3 perovskites derived from CoX2 (X = CH3COO–, NO3–) were prepared and investigated for total propane oxidation. It is shown that pure rhombohedral perovskite LaCoO3 from Co(CH3COO)2 can be obtained at a relatively low temperature, 400 °C, benefitting from the complexation effect of CH3COO–. On the other hand, CH3COO– can accelerate the complete decomposition of polymer. The low‐temperature process can protect LaCoO3 nanoparticles from growing up. As a result, Co(CH3COO)2‐derived catalysts exhibit better propane oxidation activity than the ones suffered the same thermal treatment by using Co(NO3)2. XPS and H2‐TPR analysis provide that there is subtle change in Co3+/Co2+ on bulk/surface of Co(CH3COO)2‐derived catalysts prepared at different temperatures, giving rise to similar propane oxidation activities. Moreover, the result of cyclic stability test over 400 °C obtained catalyst shows little deactivation, demonstrating a good thermal stability. Our study can provide a feasible route for energy‐saving synthesis of LaCoO3 catalyst applied in the catalytic oxidation of volatile organic compounds (VOCs). [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 1001604X
- Volume :
- 38
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Chinese Journal of Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 141275286
- Full Text :
- https://doi.org/10.1002/cjoc.201900393