Highly structured metal-organic framework nanofibers for methane storage

作     者：Yibo Dou Carlos Grande Andreas Kaiser Wenjing Zhang 豆义波;Carlos Grande;Andreas Kaiser;张文静

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.