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Issue 5, 2013
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Novel metal(II) coordination polymers based on N,N′-bis-(4-pyridyl)phthalamide as supercapacitor electrode materials in an aqueous electrolyte

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Abstract

Based on the redox-active L (N,N′-bis-(4-pyridyl)phthalamide) ligand, two porous MOFs formulated as Zn6(BPC)6(L)3·9DMF (H2BPC = 4,4′-biphenyldicarboxylic acid) (1) and Cd2(TDC)2(L)2·4H2O (H22TDC = 2,5-thiophenedicarboxylic acid) (2) were synthesized and structurally characterized by single-crystal X-ray diffractions. Complex 1 features a uninodal 5-connected 3-fold interpenetrated 3D framework with {46.64}-bnn hexagonal BN topology. Complex 2 displays a uninodal 6-connected 2-fold interpenetrated 3D framework with {412.63}-pcu topology. When complexes 1 and 2 are used as supercapacitor electrode materials, they can provide a large voltage window as high as 2.6 V in an aqueous electrolyte, and their specific capacitances are much more than the value for the bare carbon glassy electrode. It is observed that the more the current density, the less the specific capacitance for the two kinds of supercapacitor electrode materials. The two complexes show different thermal stabilities, UV absorption and photoluminescence properties.

Graphical abstract: Novel metal(ii) coordination polymers based on N,N′-bis-(4-pyridyl)phthalamide as supercapacitor electrode materials in an aqueous electrolyte

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Publication details

The article was received on 28 Aug 2012, accepted on 18 Oct 2012 and first published on 23 Oct 2012


Article type: Paper
DOI: 10.1039/C2DT31965A
Citation: Dalton Trans., 2013,42, 1603-1611
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    Novel metal(II) coordination polymers based on N,N′-bis-(4-pyridyl)phthalamide as supercapacitor electrode materials in an aqueous electrolyte

    Y. Gong, J. Li, P. Jiang, Q. Li and J. Lin, Dalton Trans., 2013, 42, 1603
    DOI: 10.1039/C2DT31965A

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