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    Effect of Doped Alkali Metal Ions on the SO2 Capture Performance of MnO2 Desulfurization Materials at Low Temperature

    Xing Li1,3, Yugo Osaka2,*, Hongyu Huang1, Takuya Tsujiguchi2, Akio Kodama2

    Journal of Renewable Materials, Vol.9, No.9, pp. 1541-1553, 2021, DOI:10.32604/jrm.2021.015514

    Abstract Sulfur dioxide (SO2) emissions from diesel exhaust pose a serious threat to the environment and human health. Thus, desulfurization technology and the performance of desulfurization materials must be improved. In this study, MnO2 was modified with various alkali metal ions using the impregnation method to enhance its SO2 capture performance. The composites were characterized intensively by scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction spectroscopy, and Brunauer-Emmett-Teller theory. The SO2 capture performance of these composites were measured via thermogravimetry, and the effect of doping with alkali metal ions on the SO2 capture performance of MnO2 was investigated. Results showed that… More >

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