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Luminescence sensing and supercapacitor performances of a new (3,3)-connected Cd-MOF

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Abstract

A novel two-dimensional Cd-based metal–organic framework, {[Cd(Hcpnc)(DMF)]·DMF·2H2O}n (Cd-MOF) has been synthesized successfully under solvothermal conditions by utilizing a multifunctional N,O-building block ligand, 2-(2,5-dicarboxylphenyl)nicotinic acid (H3cpnc), which is a new and virtually unexplored multifunctional pyridine-tricarboxylic building block. The product was isolated as a stable crystalline solid and was fully characterized by IR spectroscopy, elemental analyses, thermogravimetry and differential scanning calorimetry, powder X-ray diffraction, single-crystal X-ray diffraction analyses, and X-ray photoelectron spectroscopy. The solid-state luminescence properties of the Cd-MOF were studied at ambient temperature. The compound shows high selectivity and sensitivity for Cu2+ ions and nitrobenzene by the luminescence quenching behavior with excellent repeatability. Additionally, the Cd-MOF exhibits an excellent specific capacitance of 321 F g−1 at 0.5 A g−1 and it still retains 95.2% of the original capacitance after 1000 cycles. Therefore, the Cd-MOF as a kind of bifunctional material will have broad application prospects in luminescence detection and supercapacitors.

Graphical abstract: Luminescence sensing and supercapacitor performances of a new (3,3)-connected Cd-MOF

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Publication details

The article was received on 12 Jul 2019, accepted on 12 Sep 2019 and first published on 12 Sep 2019


Article type: Paper
DOI: 10.1039/C9CE01087D
CrystEngComm, 2019, Advance Article

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    Luminescence sensing and supercapacitor performances of a new (3,3)-connected Cd-MOF

    Q. Liu, K. Yue, X. Weng and Y. Wang, CrystEngComm, 2019, Advance Article , DOI: 10.1039/C9CE01087D

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