Role of Solvent in the Oriented Growth of Conductive Ni‐CAT‐1 Metal‐Organic Framework at Solid–Liquid Interfaces
[1];
- Energy and Environment Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
- Physical and Computational Sciences Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
- Energy and Environment Directorate Pacific Northwest National Laboratory Richland WA 99354 USA, Department of Materials Science and Engineering University of Washington Seattle WA 98195 USA
- Physical and Computational Sciences Directorate Pacific Northwest National Laboratory Richland WA 99354 USA, Department of Materials Science and Engineering University of Washington Seattle WA 98195 USA
Abstract A controlled growth of two‐dimensional (2D) π‐conjugated metal‐organic frameworks (MOFs) on solid substrates can open exciting opportunities for the application of 2D MOFs as optoelectronic devices. Some factors like solvent composition and type of substrates are known to influence the properties of solution‐processed 2D MOF crystals; however, a mechanistic understanding of how interactions between solvent, substrate, and precursors affect heterogeneous nucleation has been limited. Here, it is reported that the structure of Ni‐catecholate (Ni‐CAT‐1) MOFs at a solid–liquid interface is controlled by solvent–substrate and solvent–MOF precursor interactions. Specifically, the structure of the MOF film can be controlled by varying the affinity of the solvent to the substrate. As a fraction of N , N ‐dimethylformamide (DMF) in a binary solvent mixture of water and DMF increases, the arrangement of Ni‐CAT‐1 crystals varies from vertically aligned nanorods to the graphite substrate to less ordered nanorods with the lower initial nucleation number density of Ni‐CAT‐1 crystals on the surface.
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- NONE; AC05-76RL01830
- OSTI ID:
- 2332894
- Journal Information:
- Advanced Materials Interfaces, Journal Name: Advanced Materials Interfaces Journal Issue: 14 Vol. 11; ISSN 2196-7350
- Publisher:
- Wiley Blackwell (John Wiley & Sons)Copyright Statement
- Country of Publication:
- Germany
- Language:
- English
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