Triazine-based 2D covalent organic frameworks improve the electrochemical performance of enzymatic biosensors

Yildirim, Onur; Derkuş, Burak

doi:10.1007/s10853-019-04254-5

Cited by 31 publications

(20 citation statements)

References 34 publications

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“…A broad amorphous halo centered at 23 °2θ presented in both cases is indicative of the amorphous nature of the materials (Figure 3E). (Murthy and Minor, 1990;Yildirim and Derkus, 2020) These results appear to support the hypothesis that the size of surface-exposed functional moieties affects the crystallinity of the polymeric materials because of steric hindrance that causes angle strain between the substrates. Moreover, the low-intensity diffraction peaks observed in the diffraction pattern of F-COP DMF could be attributed to the generation of micro-crystallites in the material.…”

Section: Resultssupporting

confidence: 67%

Solvent-Directed Morphological Transformation in Covalent Organic Polymers

et al. 2022

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Synthesis of bi-functional covalent organic polymers in two distinctive morphologies has been accomplished by simply switching the solvent from DMF to DMSO when 1,3,5-tribenzenecarboxyldehyde and 2,5-diaminobenzene sulfonic acid were reacted via Schiff base condensation reaction to afford covalent organic polymers (COPs) encompassing flower (F-COPDMF)- and circular (C-COPDMSO)-type morphologies. Chemical and morphological natures of the synthesized COPs were compared by characterization using TEM, SEM, XRD, FT-IR, and XPS analysis techniques. Besides diverse morphology, both the polymeric materials were found to comprise similar chemical natures bearing protonic acid–SO3H and Lewis base–C=N functionalities. Subsequently, both the COPs were evaluated for the synthesis of hydroxymethylfurfural (HMF) by the dehydration of fructose to investigate their morphology-dependent catalytic activity.

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Section: Resultssupporting

confidence: 67%

Solvent-Directed Morphological Transformation in Covalent Organic Polymers

et al. 2022

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“…Indeed, whereas in boronate COFs the charge preferentially moves alongside the plane directions, imine-based COFs also allow lateral diffusion throughout the frameworks. Therefore, boronate ester-based COFs could be considered as small molecule-based electronics whereas imine-based COFs are generally described as conjugated conducting polymers [19,63]. Nanostructured systems are usually synthetized by solvothermal method allowing th finely control the morphology and the crystallinity of the materials [64][65][66].…”

Section: Covalent Organic Framework (Cofs)mentioning

confidence: 99%

Application of Metal-Organic Frameworks and Covalent Organic Frameworks as (Photo)Active Material in Hybrid Photovoltaic Technologies

et al. 2020

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Metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) are two innovative classes of porous coordination polymers. MOFs are three-dimensional materials made up of secondary building blocks comprised of metal ions/clusters and organic ligands whereas COFs are 2D or 3D highly porous organic solids made up by light elements (i.e., H, B, C, N, O). Both MOFs and COFs, being highly conjugated scaffolds, are very promising as photoactive materials for applications in photocatalysis and artificial photosynthesis because of their tunable electronic properties, high surface area, remarkable light and thermal stability, easy and relative low-cost synthesis, and structural versatility. These properties make them perfectly suitable for photovoltaic application: throughout this review, we summarize recent advances in the employment of both MOFs and COFs in emerging photovoltaics, namely dye-sensitized solar cells (DSSCs) organic photovoltaic (OPV) and perovskite solar cells (PSCs). MOFs are successfully implemented in DSSCs as photoanodic material or solid-state sensitizers and in PSCs mainly as hole or electron transporting materials. An innovative paradigm, in which the porous conductive polymer acts as standing-alone sensitized photoanode, is exploited too. Conversely, COFs are mostly implemented as photoactive material or as hole transporting material in PSCs.

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“…In the past few years, COFs became the center of attention for researchers, due to their highly porous surface, structural properties, physical and chemical durability as well as exhibiting strong covalent bonding. [12][13][14] Covalent triazine-based frameworks (CTFs) are considered as a novel promising class of organic porous crystalline materials, rst prepared by Thomas et al in 2008. CTFs can be synthesized by trimerization reaction of aromatic nitrile in molten ZnCl 2 under ionothermal conditions.…”

Section: Introductionmentioning

confidence: 99%