Fe(II)-based dual function metallo-supramolecular polymer with thiazolothiazole spacer for high-performance electrochromic supercapattery

Halder, Sayan; Chakraborty, Chanchal

doi:10.1016/j.solmat.2023.112288

Cited by 19 publications

(6 citation statements)

References 68 publications

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“…Conversely, supercapacitors offer ultrahigh power density and longer cycle life than metal-ion batteries. − They operate through non-Faradic processes, electrochemical double-layer capacitors (EDLC), and the Faradic processes through reversible redox reactions in pseudocapacitors . Hybrid supercapacitors, which combine the benefits of both processes, have emerged as a solution with higher energy and power density and improved cycle life. , Various electrode materials, such as graphene, activated carbon, metal oxides, metal chalcogenides, conducting polymers, and organic frameworks, have been extensively explored for supercapacitor applications. − However, designing nanostructured frameworks with high surface area, porosity, and incorporation of redox-active moieties is crucial for achieving high-performance hybrid supercapacitors.…”

Section: Introductionmentioning

confidence: 99%

Triazine-Based Two-Dimensional Porous Covalent Organic Framework for Efficient Electrode Materials for Electrocatalytic Hydrogen Generation and Hybrid Supercapacitors

Halder

Chakraborty

2023

ACS Appl. Eng. Mater.

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The urgent need for eco-friendly and sustainable energy storage systems or green energy production methods to combat the detrimental effects of non-renewable fossil fuels is widely recognized. In this context, we have synthesized a pyromellitic diimide and triazine-containing covalent organic framework named PDT-COF and investigated its performance in two key energy applications: electrocatalytic hydrogen evolution reaction (HER) for green hydrogen energy production and electrochemical energy storage for supercapacitor devices. The PDT-COF nanosheets exhibit a high surface area of 312.6 m 2 /g and abundant pores with a size of ∼1.8 nm. Leveraging these features, the metal-free PDT-COF electrocatalyst demonstrates good performance in HER, requiring a minimal overpotential of 210 mV for 10 mA/cm 2 current density. Notably, PDT-COF follows the Heyrovsky−Volmer mechanism for HER and exhibits outstanding durability, sustaining over 60 h of continuous electrocatalysis. Furthermore, the PDT-COF-based asymmetric solid-state device exhibits a specific capacitance of 104 F/g, coupled with a high energy density of 32.55 W h/kg and a power density of 1875 W/kg at a current density of 1 A/g. Importantly, the robustness and cycle stability of the PDT-COF-based asymmetric pseudocapacitor device are confirmed, as it retains 88% of its initial capacitance and maintains a Columbic efficiency of 90% even after 5000 cycles of charge and discharge. Considering these findings, the synthesized PDT-COF material holds great promise as a metal-free electrode material for future applications in hydrogen energy generation and electrochemical energy storage devices.

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Section: Introductionmentioning

confidence: 99%

Triazine-Based Two-Dimensional Porous Covalent Organic Framework for Efficient Electrode Materials for Electrocatalytic Hydrogen Generation and Hybrid Supercapacitors

Halder

Chakraborty

2023

ACS Appl. Eng. Mater.

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“…Since this challenge is overcome in quasi-solid electrolytes, ECDs involving quasi-solid electrolytes could display better cyclic stability. Evidence of this was demonstrated in the work of Halder et al [43] They observed that the electrochromic material showed an excellent durability according to chronoamperometry cyclic stability over 600 cycles by alternating the voltage between the oxidation and reduction potential with 4 second intervals using either liquid or quasi-solid electrolyte. However, as shown in Figure 8, slight changes in transmittance over the cycles can be seen in the liquid electrolyte while the PMMA gel electrolyte displayed better stability with no obvious changes in the transmittance values.…”

Section: Stability Of Ecds With Quasi-solid Gel Electrolytesmentioning

confidence: 91%

Application of quasi solid electrolytes in organic based electrochromic devices: A mini review

Orimolade,

Draper

2024

Chemistry A European J

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The interest in all solid organic based electrochromic devices (ECDs) is on the increase. This is because these devices offer the applicability of electrochromic materials in products such as smart sensors, smart windows, flexible wearables and energy storage devices. The use of quasi‐solid electrolytes for the construction of these ECDs is attractive because of their ease of preparation, availability, low cost, improve electrochromic performance, good ionic conductivity and prevention of leakages in ECDs. Hence, in this review, a detailed discussion is presented on the progress in the development of semi‐solid electrolytes for ECDs fabrication. The preparation of the most common electrolytes that have been applied for organic based ECDs are summarized. Particular attention is given to efforts and strategies that have been adopted to improve the efficiency of quasi‐solid electrolytes. Importantly, knowledge gaps that warrant further research are clearly identified and recommendations for future works are suggested. This review will be very beneficial for both established and new researchers in the field of electrochromic devices and material science.

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“…Together with the flexible synthetic approach in combination with the possibility of the band gap narrowing, the effective electron and hole transport through the light capture, makes the TzTz-based compounds a new domain in a field of research directed towards the organic semiconducting and optoelectronic materials. 87,88 Photophysical and electronic properties…”

Section: Synthesismentioning

confidence: 99%

Thiazolo[5,4-d]thiazoles with a spirobifluorene moiety as novel D–π–A type organic hosts: design, synthesis, structure–property relationship and applications in electroluminescent devices

Andicsová

Tokárová

Kozma³

et al. 2023

New J. Chem.

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Fe(II)-based dual function metallo-supramolecular polymer with thiazolothiazole spacer for high-performance electrochromic supercapattery

Cited by 19 publications

References 68 publications

Triazine-Based Two-Dimensional Porous Covalent Organic Framework for Efficient Electrode Materials for Electrocatalytic Hydrogen Generation and Hybrid Supercapacitors

Triazine-Based Two-Dimensional Porous Covalent Organic Framework for Efficient Electrode Materials for Electrocatalytic Hydrogen Generation and Hybrid Supercapacitors

Application of quasi solid electrolytes in organic based electrochromic devices: A mini review

Thiazolo[5,4-d]thiazoles with a spirobifluorene moiety as novel D–π–A type organic hosts: design, synthesis, structure–property relationship and applications in electroluminescent devices

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