Lu Jingting, Jiao Chengli, Majeed Zeeshan, Jiang Heqing
Qingdao Key Laboratory of Functional Membrane Material and Membrane Technology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao 266101, China.
University of Chinese Academy of Sciences, Beijing 100049, China.
Nanomaterials (Basel). 2018 Apr 25;8(5):275. doi: 10.3390/nano8050275.
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.
介孔碳（MC）因其高效的分子传输特性而引起了极大的关注。然而，活性位点数量有限和低微孔率通常阻碍了它们在实际应用中的使用。在此，我们通过一锅合成路线制备了具有高微孔率的镁和氮共掺杂介孔碳（Mg-NMC），随后进行进一步的蒸汽活化。与母体氮掺杂介孔碳相比，Mg-NMC呈现出部分有序的介观结构，并且由于镁掺杂后引入了碱性位点，其二氧化碳吸附能力得到了提高。经过进一步的蒸汽活化，微孔率提高到37.3%，同时在273K和1.0巴下二氧化碳吸附能力也提高了70.4%。
