期刊
MATERIALS CHEMISTRY FRONTIERS
卷 4, 期 1, 页码 243-251出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9qm00527g
关键词
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资金
- National Basic Research Program of China [2016YFA0200101]
- National Natural Science Foundation of China [21633012, 61890940]
- Chinese Academy of Sciences
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB30000000, XDB12030100]
- China Postdoctoral Science Foundation [2018M630207]
- CAS Key Research Program of Frontier Sciences [QYZDY-SSW-SLH029]
The chemical vapour deposition (CVD) method has offered a new possibility of preparing metal-organic frameworks (MOFs). However, the reported MOF-CVD method is limited to the use of gaseous organic precursors, preventing the extension of the CVD method to a broad range of potential organic linkers. This study, for the first time, reports a dual-temperature zone CVD-assisted approach for the in situ growth of conductive Cu-3(HHTP)(2) (HHTP = 2,3,6,7,10,11-hexahydroxytriphenylene) nanowire arrays (NWAs) on the interface between a solid Cu foil and a solid organic precursor, overcoming the difficulties of high sublimation temperatures of organic ligands and low decomposition temperatures of conductive MOFs. In the process, oxygenated water (O-H2O) is the key to obtain crystalline Cu-3(HHTP)(2) NWAs, and the growth is described by a base-growth mode. A symmetrical supercapacitor based on Cu-3(HHTP)(2) NWAs on the Cu foil shows a high specific surface area normalized capacitance of 41.1 mu F cm(-2) for 0.5 A g(-1), which is 2-5 times higher than those of most carbon materials. This study demonstrates the extension of the synthesis method from the previous liquid or gas based reaction to a solid-solid reaction, and this extension is expected to be very useful for the production of a broad range of conductive MOFs and their direct supercapacitor application.
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