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封萍, 赵剑, 徐宏祥, 等. 无烟煤基CO2吸附材料及电极材料的制备[J]. 矿业科学学报, 2018, 3(6): 596-603.
引用本文: 封萍, 赵剑, 徐宏祥, 等. 无烟煤基CO2吸附材料及电极材料的制备[J]. 矿业科学学报, 2018, 3(6): 596-603.
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Feng Ping, Zhao Jian, Xu Hongxiang, et al.   Preparation of anthracitebased CO2 adsorbents and electrode materials[J]. Journal of Mining Science and Technology, 2018, 3(6): 596-603.
Citation: Feng Ping, Zhao Jian, Xu Hongxiang, et al.   Preparation of anthracitebased CO2 adsorbents and electrode materials[J]. Journal of Mining Science and Technology, 2018, 3(6): 596-603.
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无烟煤基CO2吸附材料及电极材料的制备

  Preparation of anthracitebased CO2 adsorbents and electrode materials

    摘要
  • 摘要:  本文以宁夏太西无烟煤为基础材料，预先进行粉碎、脱灰处理，以KOH为活化剂，通过调节KOH和煤的比例得到不同比表面积和孔径分布的煤基多孔炭材料。在800 ℃条件下，KOH和煤的质量比为5∶1时，活化处理2 h，所得材料具有最高的比表面积和孔容（3.275 m2/g，1.62 cm3/g），其在0 ℃、100 kPa的条件下对CO2吸附的质量分数为23.71 %。以尿素为氮源对材料进行掺氮处理，通过氧化还原反应在炭材料上负载MnO2组成复合材料，将其用于锂离子电池负极。测试结果表明：所得材料的充放电循环稳定性较好，掺氮以及负载MnO2有助于材料比电容的提高。

     

    Abstract: In this paper，coalbased porous carbon material with different specific surface area and pore size distribution was obtained by adjusting the proportion of KOH to coal based on Taixi anthraciteWhen the ratio of KOH to coal is 5∶1 at the temperature of 800 ℃ for activation of 2 h，the obtained material has the highest specific surface area and pore volume（3 275 m2/g，162 cm3/g）The adsorption amount of carbon dioxide at 0 ℃ and 100 kPa was 2371 %The material is doped with nitrogen by using urea as a nitrogen sourceCompound material was prepared through oxidationreduction reaction on the carbon material loaded with manganese，which is used for a negative electrode material of a lithium ion batteryIt exhibits good stability in chargedischarge cyclesThe nitrogen and manganese dioxide are helpful to improve the specific capacitance of the material

     

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