Volume 38, Issue 2 pp. 144-150
Concise Report

Insights into the Low-temperature Synthesis of LaCoO3 Derived from Co(CH3COO)2 via Electrospinning for Catalytic Propane Oxidation

Yingbin Zheng

Yingbin Zheng

Fujian Key Laboratory of Pollution Control & Resource Reuse, Fujian Normal University, Fuzhou, Fujian, 350007 China

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Xiaoshan Feng

Xiaoshan Feng

Fujian Key Laboratory of Pollution Control & Resource Reuse, Fujian Normal University, Fuzhou, Fujian, 350007 China

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Daifeng Lin

Daifeng Lin

Fujian Key Laboratory of Pollution Control & Resource Reuse, Fujian Normal University, Fuzhou, Fujian, 350007 China

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Enhui Wu

Enhui Wu

Fujian Key Laboratory of Pollution Control & Resource Reuse, Fujian Normal University, Fuzhou, Fujian, 350007 China

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Yongjin Luo

Corresponding Author

Yongjin Luo

Fujian Key Laboratory of Pollution Control & Resource Reuse, Fujian Normal University, Fuzhou, Fujian, 350007 China

E-mail: [email protected]; [email protected]Search for more papers by this author
Yufeng You

Yufeng You

Fujian Key Laboratory of Pollution Control & Resource Reuse, Fujian Normal University, Fuzhou, Fujian, 350007 China

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Baoquan Huang

Baoquan Huang

Fujian Key Laboratory of Pollution Control & Resource Reuse, Fujian Normal University, Fuzhou, Fujian, 350007 China

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Qingrong Qian

Corresponding Author

Qingrong Qian

Fujian Key Laboratory of Pollution Control & Resource Reuse, Fujian Normal University, Fuzhou, Fujian, 350007 China

E-mail: [email protected]; [email protected]Search for more papers by this author
Qinghua Chen

Qinghua Chen

Fujian Key Laboratory of Pollution Control & Resource Reuse, Fujian Normal University, Fuzhou, Fujian, 350007 China

Fuqing Branch of Fujian Normal University, Fuqing, Fujian, 350300 China

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First published: 20 November 2019
Citations: 8

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).

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