Engineering Research Center of High Performance Polymer and Molding Technology, Ministry of Education, and ‡College of Automation and Electronic Engineering, Qingdao University of Science and Technology , Qingdao 266042, China.
ACS Appl Mater Interfaces. 2017 Oct 4;9(39):33997-34004. doi: 10.1021/acsami.7b11492. Epub 2017 Sep 22.
Hierarchically porous materials containing interconnected macro-/meso-/micropores are promising candidates for energy storage, catalysis, and gas separation. Here, we present an effective approach for synthesizing three-dimensional (3D) sulfonated graphene coupled microporous organic polymers (SG-MOPs). The resulting SG-MOPs possess uniform macropores with an average size of ca. 350 nm, abundant mesopores, and micropores with an average size of ca. 0.6 nm. The SG-supported adsorbents exhibit a high nitrogen content (more than 38.1 wt %), high adsorption capacity (up to 3.37 mmol CO g), high CO/N selectivity from 42 to 51, moderate heat of adsorption, as well as good stability because of the hierarchical porous structure and excellent thermal conductivity of the SG scaffold. Thus, these nitrogen-enriched adsorbents allow the overall CO capture process to be promising and sustainable.
具有互联的宏孔/介孔/微孔的分级多孔材料是储能、催化和气体分离的有前途的候选材料。在这里，我们提出了一种有效合成三维（3D）磺化石墨烯偶联微孔有机聚合物（SG-MOPs）的方法。所得到的 SG-MOPs 具有均匀的大孔，平均尺寸约为 350nm，丰富的介孔和平均尺寸约为 0.6nm 的微孔。SG 负载的吸附剂具有高的氮含量（超过 38.1wt%），高的吸附容量（高达 3.37mmol CO g），从 42 到 51 的高 CO/N 选择性，适中的吸附热以及良好的稳定性，这是由于 SG 支架的分级多孔结构和优异的导热性。因此，这些富氮吸附剂使得整个 CO 捕获过程具有前景和可持续性。
