DataVXAdvanced MaterialsPaper
journal article·2021-07

Solution‐Processable Metal–Organic Framework Nanosheets with Variable Functionalities

Hongye Yuan, Guoliang Liu, Zhiwei Qiao, Nanxi Li, Pio John S. Buenconsejo, Shibo Xi, Avishek Karmakar, Mengsha Li, Hong Cai, Stephen John Pennycook, Dan Zhao

Advanced Materials· Volume 33· Issue 29
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Source abstract

Abstract

Abstract Metal–organic frameworks (MOFs) intrinsically lack fluidity and thus solution processability. Direct synthesis of MOFs exhibiting solution processability like polymers remains challenging but highly sought‐after for multitudinous applications. Herein, a one‐pot, surfactant‐free, and scalable synthesis of highly stable MOF suspensions composed of exceptionally large (average area > 15 000 µm2) NUS‐8 nanosheets with variable functionalities and excellent solution processability is presented. This is achieved by adding capping molecules during the synthesis, and by judicious controls of precursor concentration and MOF nanosheet–solvent interactions. The resulting 2D NUS‐8 nanosheets with variable functionalities exhibit excellent solution processability. As such, relevant monoliths, aero‐ and xerogels, and large‐area textured films with a great homogeneity, controllable thickness, and appreciable mechanical properties can be facilely fabricated. Additionally, from both the molecular‐ and chip‐level it is demonstrated that capacitive sensors integrated with NUS‐8 films functionalized with different terminal groups exhibit distinguishable sensing behaviors toward acetone due to their disparate host–guest interactions. It is envisioned that this simple approach will greatly facilitate the integration of MOFs in miniaturized electronic devices and benefit their mass production.
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Research context

PolymersNanomaterials

OpenAlex topics: Metal-Organic Frameworks: Synthesis and Applications · Gas Sensing Nanomaterials and Sensors · Dendrimers and Hyperbranched Polymers

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore

State Key Laboratory of Materials‐Oriented Chemical Engineering Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) College of Chemical Engineering Nanjing Tech University Nanjing 211816 P. R. China

Guangzhou Key Laboratory for New Energy and Green Catalysis School of Chemistry and Chemical Engineering Guangzhou University Guangzhou 510006 P. R. China

Institute of Microelectronics A*STAR (Agency for Science, Technology and Research) 2 Fusionopolis Way, #08‐02 Innovis Tower Singapore 138634 Singapore

Facility for Analysis Characterization Testing Simulation (FACTS) Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore

Institute of Chemical and Engineering Sciences A*STAR Jurong Island Singapore 627833 Singapore

Department of Materials Science and Engineering National University of Singapore 9 Engineering Drive 1 Singapore 117575 Singapore

Funding

National Research Foundation Singapore · Ministry of Education - Singapore · National Natural Science Foundation of China · National University of Singapore

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