Magnesium and Nitrogen Co-Doped Mesoporous Carbon with Enhanced Microporosity for CO₂ Adsorption.
Magnesium and Nitrogen Co-Doped Mesoporous Carbon with Enhanced Microporosity for CO₂ Adsorption.
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DOI：
10.3390/nano8050275
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发表时间：
2018-04-25
期刊：
影响因子：
--
通讯作者：
Jiang H
中科院分区：
文献类型：
--
作者：
Lu J;Jiao C;Majeed Z;Jiang H
介孔碳由于其高效的分子传输性能而引起了人们极大的兴趣。然而，有限数量的活性位点和低微孔性通常阻碍它们用于实际应用。在此，我们通过一锅法合成路线，然后进一步水蒸气活化，制备了具有高微孔率的Mg和N共掺杂介孔碳（Mg-NMC）。与母体N掺杂的介孔碳相比，Mg-NMC表现出部分有序的介孔结构和提高的CO2吸附能力归因于Mg掺杂后碱性位的引入。在273 K和1.0 bar条件下，经进一步水蒸汽活化后，微孔率提高到37.3%，CO2吸附量也提高了70.4%。
Mesoporous carbons (MC) have attracted a tremendous amount of interest due to their efficient molecular transport properties. However, the limited number of active sites and low microporosity generally impede their use for practical applications. Herein, we have fabricated Mg and N co-doped mesoporous carbon (Mg-NMC) with high microporosity via one-pot synthetic route followed by further steam activation. In comparison with the parent N-doped mesoporous carbon, Mg-NMC shows partially ordered mesostructure and improved CO2 adsorption capacity attributed to the introduction of basic site after Mg doping. Upon further steam activation, the microporosity is enhanced to 37.3%, while the CO2 adsorption capacity is also increased by 70.4% at 273 K and 1.0 bar.
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影响因子：
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作者：
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