A Metal–Organic Framework Based on a Nickel Bis(dithiolene) Connector: Synthesis, Crystal Structure, and Application as an Electrochemical Glucose Sensor
| Autor: | Mohamedally Kurmoo, Yan Zhou, Fei Yu, Qin Hu, Guang-Ying Ran, Deanna M. D'Alessandro, Hai-Ying Wang, Nicholas D. Shepherd, Jing-Lin Zuo |
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| Rok vydání: | 2020 |
| Předmět: |
Detection limit
Chemistry chemistry.chemical_element General Chemistry Crystal structure 010402 general chemistry Electrochemistry 01 natural sciences Biochemistry Catalysis 0104 chemical sciences chemistry.chemical_compound Nickel Colloid and Surface Chemistry Oxidation state Electrode Physical chemistry Hybrid material Tetrathiafulvalene |
| Zdroj: | Journal of the American Chemical Society. 142:20313-20317 |
| ISSN: | 1520-5126 0002-7863 |
| DOI: | 10.1021/jacs.0c09009 |
| Popis: | Functionalizing the redox-active tetrathiafulvalene (TTF) core with groups capable of coordination to metals provides new perspectives on the modulation of architectures and electronic properties of organic-inorganic hybrid materials. With a view to extending this concept, we have now synthesized nickel bis(dithiolene-dibenzoic acid), [Ni(C2S2(C6H4COOH)2)2], which can be considered as the inorganic analogue of the organic tetrathiafulvalene-tetrabenzoic acid (H4TTFTB). Likewise, [Ni(C2S2(C6H4COOH)2)2] is a redox-active linker for new functional metal-organic frameworks, as demonstrated here with the synthesis of [Mn2{Ni(C2S2(C6H4COO)2)2}(H2O)2]·2DMF, (1, DMF = N,N-dimethylformamide). 1 is isomorphic to the reported [Mn2(TTFTB)(H2O)2] (2) but is a better electrochemical glucose sensor due to the multiple oxidation-reduction states of the [NiS4] core, which allow glucose to be oxidized to glucolactone by the high oxidation state [NiS4] center. As a non-enzymatic glucose sensor, 1 on Cu foam (CF), 1-CF, was synthesized by a one-step hydrothermal method and exhibited an excellent electrochemical performance. The fabricated 1-CF electrode offers a high sensitivity of 27.9 A M-1 cm-2, with a wide linear detection range from 2.0 × 10-6 to 2.0 × 10-3 M, a low detection limit of 1.0 × 10-7 M (signal/noise = 3), and satisfactory stability and reproducibility. |
| Databáze: | OpenAIRE |
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