Highly structured metal-organic framework nanofibers for methane storage
多级结构MOFs纳米纤维用于甲烷存储研究作者机构:Department of Energy Conversion and StorageTechnical University of DenmarkAnker AngelundsvejDK-2800 Kongens LyngbyDenmark Department of Environmental EngineeringTechnical University of DenmarkMiljøvej 113DK-2800 Kongens LyngbyDenmark SINTEFSINTEF AS.Forskningsveien 1.0373 OsloNorway
出 版 物:《Science China Materials》 (中国科学(材料科学(英文版))
年 卷 期:2021年第64卷第7期
页 面:1742-1750页
核心收录:
学科分类:081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程(可授工学、理学学位)] 080502[工学-材料学] 0702[理学-物理学]
基 金:supported by the Grande Solution Project“HiGradeGas”(48279) Innovation Fund Denmark,exploring NFs-based adsorbents for biogas upgrading and storage the Danish Research Council to provide funding to support fundamental research on electrospinning(8022-00237B) for investigating NFs structures for enzyme immobilization(6111-00232B)
主 题:electrospinning phase conversion metal-organic frameworks(MOFs) methane storage
摘 要:Porous materials such as metal-organic frameworks(MOFs)with high theoretical volumetric gas uptake capacity are promising materials for gas storage and separation,but the structuring for practical applications is ***,we report a general and feasible strategy to combine electrospinning with a phase conversion method to decorate polyacrylonitrile nanofibers(PAN NFs)with CuMOF(HKUST-1).The strategy is based on the combination of surface pretreatment of the NFs with Cu(OH)_(2) and a subsequent phase conversion into HKUST-1 crystals(PCHKUST-1).A significant higher loading of HKUST-1 in the PAN NF matrix was achieved by the phase conversion method compared with direct electrospinning of MOF slurries or insitu growth of MOF crystals on *** a result,the hierarchical structured PC(phase conversion)-HKUST-1 NFs revealed the highest gravimetric storage capacity of 86 cm^(3) g^(-1)(STP)at 3500 kPa and 298 K for methane(CH_(4)),which is higher than other HKUST-1 NFs reported *** improved CH_(4) uptake can be explained by the high loading of HKUST-1 due to the high availability of Cu-ions localized on the surface of the NFs during the phase conversion process,resulting in high surface area and excellent gas access of the phase converted ***,the developed strategy of structuring MOFs could be of interest for the fabrication of tailor-made MOF NF architectures for other energy and environmental applications.