Fabrication of a new MgO/C sorbent for CO2 capture at elevated temperature

Fabrication of a new MgO/C sorbent for CO2 capture at elevated temperature
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用于高温下二氧化碳捕集的新型 MgO/C 吸附剂的制备

DOI:
10.1039/c3ta12261a
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发表时间:
2013-10
影响因子:
11.9
通讯作者:
Zhu, Jian Hua
Zhu, Jian Hua
中科院分区:
材料科学2区
文献类型:
--
作者:
Lin, Wei Gang;Wan, Mi Mi;Wang, Ying;Zhu, Jian Hua

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A synergistic effect between a self-dispersion of MgO and biomass-derived carbon in the adsorption of CO2 is reported for the first time. Magnesia and carbon mixed particles are formed in situ during the carbonization of magnesium acetate on activated carbon made from coconut, increasing the accessibility of basic sites for CO2 adsorption. With these complementary effects of the hierarchical structural support, the composite containing 20% magnesia can trap 5 times more CO2 than 20% MgO/SiO2, in the harsh instantaneous adsorption of CO2 at 100 and 150 °C, offering a new candidate for the adsorption of CO2 in flue gas vents.
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