一种用于捕获二氧化碳的二氨基官能化倍半硅氧烷柱撑氧化石墨烯。
A diamino-functionalized silsesquioxane pillared graphene oxide for CO capture.
作者信息
Thomou Eleni, Sakavitsi Viktoria, Angeli Giasemi K, Spyrou Konstantinos, Froudas Konstantinos G, Diamanti Evmorfia K, Romanos George E, Karanikolos Georgios N, Trikalitis Pantelis N, Gournis Dimitrios, Rudolf Petra
机构信息
Department of Materials Science and Engineering, University of Ioannina Ioannina 45110 Greece
Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
出版信息
RSC Adv. 2021 Apr 13;11(23):13743-13750. doi: 10.1039/d1ra00777g.
In the race for viable solutions that could slow down carbon emissions and help in meeting the climate change targets a lot of effort is being made towards the development of suitable CO adsorbents with high surface area, tunable pore size and surface functionalities that could enhance selective adsorption. Here, we explored the use of silsesquioxane pillared graphene oxide for CO capture; we modified silsesquioxane loading and processing parameters in order to obtain pillared structures with nanopores of the tailored size and surface properties to maximize the CO sorption capacity. Powder X-ray diffraction, XPS and FTIR spectroscopies, thermal analysis (DTA/TGA), surface area measurements and CO adsorption measurements were employed to characterize the materials and evaluate their performance. Through this optimisation process, materials with good CO storage capacities of up to 1.7/1.5 mmol g at 273 K/298 K in atmospheric pressure, were achieved.
在寻求可行解决方案以减缓碳排放并助力实现气候变化目标的竞赛中，人们正在付出诸多努力来开发具有高表面积、可调节孔径和表面功能的合适的CO吸附剂，这些特性能够增强选择性吸附。在此，我们探索了使用倍半硅氧烷柱撑氧化石墨烯进行CO捕获；我们修改了倍半硅氧烷负载量和加工参数，以获得具有定制尺寸纳米孔和表面性质的柱撑结构，从而使CO吸附容量最大化。采用粉末X射线衍射、XPS和FTIR光谱、热分析（DTA/TGA）、表面积测量和CO吸附测量来表征材料并评估其性能。通过这一优化过程，实现了在大气压力下于273 K/298 K时具有高达1.7/1.5 mmol g良好CO储存容量的材料。
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