Postmodulation of the Metal–Organic Framework Precursor toward the Vacancy-Rich Cu x O Transducer for Sensitivity Boost: Synthesis, Catalysis, and H 2 O 2 Sensing
| Autor: | Robert S. Marks, Junji Li, Serge Cosnier, Xueji Zhang, Guofang Shu, Dan Shan, Wen-Li Xin, Yu-Xuan Dai |
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| Přispěvatelé: | Département de Chimie Moléculaire - Biosystèmes Electrochimiques et Analytiques (DCM - BEA ), Département de Chimie Moléculaire (DCM), Université Grenoble Alpes (UGA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Nanocomposite
Dopant Chemistry 02 engineering and technology [CHIM.CATA]Chemical Sciences/Catalysis 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 0104 chemical sciences Analytical Chemistry Catalysis Transducer Chemical engineering [CHIM.ANAL]Chemical Sciences/Analytical chemistry Vacancy defect Atom Metal-organic framework 0210 nano-technology ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Analytical Chemistry Analytical Chemistry, American Chemical Society, 2021, 93 (32), pp.11066-11071. ⟨10.1021/acs.analchem.1c02183⟩ |
| ISSN: | 0003-2700 1520-6882 |
| DOI: | 10.1021/acs.analchem.1c02183⟩ |
| Popis: | Metal-organic frameworks (MOFs) act as versatile coordinators for the subsequent synthesis of high-performance catalysts by providing dispersed metal-ion distribution, initial coordination condition, dopant atom ratios, and so on. In this work, a crystalline MOF trans-[Cu(NO3)2(Him)4] was synthesized as the novel precursor of a redox-alternating CuxO electrochemical catalyst. Through simple temperature modulation, the gradual transformation toward a highly active nanocomposite was characterized to ascertain the signal enhancing mechanism in H2O2 reduction. Owing to the proprietary structure of the transducer material and its ensuing high activity, a proof-of-principle sensor was able to provide an amplified sensitivity of 2330 μA mM-1 cm-2. The facile one-pot preparation and intrinsic nonenzymatic nature also suggests its wide potentials in medical settings. |
| Databáze: | OpenAIRE |
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