Microporous and Mesoporous Materials ( IF 4.8 ) Pub Date : 2019-07-31 , DOI: 10.1016/j.micromeso.2019.109622 Farzeen Sakina , Richard T. Baker
Mesoporous carbon materials are of great interest as catalyst supports. However, the presence of impurities such as the metal or halide ions which are often used to catalyse the polymerisation and condensation reactions in their preparation can be poisonous to the final catalyst product. For this reason, in this work, metal- and halogen-free mesoporous polymer and carbon materials (OMCs) were synthesised using a modified two phase method employing alternative polymerisation and condensation catalysts. The OMC materials synthesised exhibit a highly ordered two dimensional hexagonal arrangement of cylindrical mesopores, as revealed by small angle XRD, gas physisorption and TEM analysis, and have typical specific surface areas of ca. 600 m2/g, pore size of ca. 7.0 nm, and pore volume of approximately 0.60 cm3/g. Their physical evolution with increasing calcination temperature is examined as are the effects of varying synthesis parameters on the nature of the final mesostructure.
中文翻译:
有序介孔碳材料的无金属和无卤素合成
介孔碳材料作为催化剂载体备受关注。然而,在其制备中经常用于催化聚合和缩合反应的杂质如金属或卤化物离子的存在可能对最终的催化剂产物有毒。由于这个原因,在这项工作中,使用改进的两相方法(采用交替聚合和缩合催化剂)合成了无金属和无卤素的介孔聚合物和碳材料(OMC)。合成的OMC材料表现出圆柱形中孔的高度有序的二维六边形排列,如小角度XRD,气体物理吸附和TEM分析所揭示的那样,典型的比表面积约为。600 m 2 / g,孔径约为 7.0 nm,孔体积约为0.60 cm3 /克。研究了它们随着煅烧温度的升高而发生的物理演化,以及合成参数的变化对最终介观结构性质的影响。