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- Title
Insights into the Low‐temperature Synthesis of LaCoO<sub>3</sub> Derived from Co(CH<sub>3</sub>COO)<sub>2</sub>via Electrospinning for Catalytic Propane Oxidation.
- Authors
Zheng, Yingbin; Feng, Xiaoshan; Lin, Daifeng; Wu, Enhui; Luo, Yongjin; You, Yufeng; Huang, Baoquan; Qian, Qingrong; Chen, Qinghua
- 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).
- Subjects
PROPANE; CATALYTIC oxidation; VOLATILE organic compounds; ELECTROSPINNING; THERMAL stability; LOW temperatures
- Publication
Chinese Journal of Chemistry, 2020, Vol 38, Issue 2, p144
- ISSN
1001-604X
- Publication type
Article
- DOI
10.1002/cjoc.201900393