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Catalytic Decomposition of Dichlorodifluoromethane (CFC-12) Over MgO/ZrO2 Solid Base Catalyst

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Abstract

MgO/ZrO2 solid base catalyst was prepared by co-precipitation method. The effects of hydrolysis temperature, water vapor concentration, total flow rate and calcination temperature of the catalyst on the decomposition rate of dichlorodifluoromethane (CFC-12) were studied. The results showed that the decomposition rate of CFC-12 could reach 98.90% by using MgO/ZrO2 solid base as the catalyst at a hydrolysis temperature of 400 °C, a water vapor concentration of 25%, a total flow rate of 5 mL/min and a calcination temperature of 700 °C. The XRD characterization of the catalyst under different calcination temperature showed that the MgO/ZrO2 catalyst was a solid solution. The products were tested by ion chromatography, SEM and EDS and finding that the decomposition products were main HCl, HF and CO2.

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Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (51568068). Yunnan Minzu University is gratefully acknowledged for providing us with the facilities for the ion chromatography and the scanning electron microscopic study.

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Authors and Affiliations

  1. College of Chemistry and Environment, Joint Research Centre for International Cross-Border Ethnic Regions Biomass Clean Utilization, Yunnan Minzu University, Yunnan, People’s Republic of China

    Guoqing Ren, Lijuan Jia, Guangqin Zhao, Tong Zhou, Xin Yang, Rui Li & Tiancheng Liu

  2. Yunnan Technician College, Kunming, 650300, Yunnan, People’s Republic of China

    Yu Chang

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  1. Guoqing Ren
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  2. Lijuan Jia
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  3. Guangqin Zhao
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  4. Tong Zhou
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  5. Xin Yang
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  6. Rui Li
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  7. Yu Chang
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  8. Tiancheng Liu
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Correspondence to Tiancheng Liu.

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Ren, G., Jia, L., Zhao, G. et al. Catalytic Decomposition of Dichlorodifluoromethane (CFC-12) Over MgO/ZrO2 Solid Base Catalyst. Catal Lett 149, 507–512 (2019). https://doi.org/10.1007/s10562-018-2644-5

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  • DOI: https://doi.org/10.1007/s10562-018-2644-5

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