材料科学
石墨烯
介孔材料
氧化物
复合数
碳纤维
复合材料
多孔性
比表面积
化学工程
金属有机骨架
纳米技术
化学
催化作用
有机化学
吸附
冶金
工程类
作者
Barbara Szczęśniak,Jenjira Phuriragpitikhon,J. Choma,Mietek Jaroniec
标识
DOI:10.1016/j.jcis.2020.05.080
摘要
Graphene oxide-containing ordered mesoporous carbon (OMC/GO) composites were synthesized by mechanochemical soft-templating of mimosa tannin and graphene oxide with triblock copolymer Pluronic F127. Graphene oxide was added to modify the surface properties of ordered mesoporous carbon. Next, copper containing MOF (CuBTC) was synthesized in the presence of the OMC/GO composite via dry milling to obtain a three-component composites with different compositions. The composite with 50 wt% of CuBTC exhibited high CO2 uptake capacity of 5.39 mmol·g−1 at 0 °C and 1 bar. This study showed that CuBTC was initially crystallized in mesopores of carbonaceous materials, and next on their external surface. Small OMC amounts (~1 and ~3 wt%) added during the mechanochemical synthesis of CuBTC resulted in the enhanced surface area of the obtained two-component composites reaching 1930 m2·g−1 as compared to those of parent materials. This paper reports a comprehensive study of carbon-CuBTC composites over a wide range of compositions, which may be interesting from the viewpoint of advancing and understanding the mechanochemical synthesis of composite materials with high surface areas, enhanced porosity and interfacial properties.
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