Construction of Fe- and N-Doped Microporous Carbon from Ferrocene-Based Conjugated Microporous Polymers for Supercapacitive Energy Storage

ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 6, 2025

The rising interest in conjugated microporous polymers (CMPs) as prospective electrode materials for supercapacitors (SCs) has been dampened by numerous obstacles. Many CMPs exhibit poor conductivity and substandard electrochemical properties, limiting their practical applications. In response to these issues, we successfully synthesized Fe- N-doped carbon-based from Py-BZFC-CMP Py-PHFC-CMP through calcination potassium hydroxide (KOH) activation at 800 °C. resulting carbons, designated Py-BZFC-CMP-800 Py-PHFC-CMP-800, demonstrated excellent attributes, including outstanding thermal stability with a Td10 up 732 °C, impressive char yields reaching 87 wt %. Furthermore, exhibited large surface areas, peaking 376 m2 g–1, significant total pore volume (PVtotal) of 0.36 cm3 g–1. One remarkable material, produced KOH exceptional performance. It achieved specific capacitance 324 F g–1 0.5 A rivaling some the highest performing porous carbon reported date. Py-PHFC-CMP-800 cycling stability, retaining 86% its after 5000 charge–discharge cycles 10 This project offers advancement field CMP-based showcasing how rational precursor design pyrolysis can lead creation high-performance carbons. Fe heteroatom doping approach enhances functionality opens possibilities owing use valuable application, efficient energy storage systems.

Language: Английский

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Nitrogen- and Sulfur-Rich Microporous Carbons Derived from Conjugated Microporous Polymers for CO₂ Uptake, Supercapacitor Energy Storage, and Electrochemical Hydrogen Production

ACS Applied Polymer Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 23, 2025

In this work, we synthesized Py-DPABT CMP through Sonogashira–Hagihara cross-coupling reactions between N4,N7-bis(4-bromophenyl)-N4,N7-diphenylbenzo[c][1,2,5]thiadiazole-4,7-diamine (DPABT-Br2) and 1,3,6,8-tetraethynylpyrene (Py-T). This was subsequently carbonized at 500 700 °C transformed into a porous carbonaceous electrode precursor for supercapacitors (SCs), yielding CMP-500 CMP-700 containing N S heteroatoms. Using distinct analytical methods, investigated the electrochemical characteristics, CO2 uptake, configuration, porosity, thermal stability, chemical structure of before after carbonization °C, respectively. After carbonization, material (Py-DPABT CMP-500) achieved BET surface area (SABET) 423 m2 g–1 adsorption capacity reached 3.55 mmol 0 °C. Electrochemical evaluations revealed that exhibited enhanced performance when utilized as supercapacitor electrodes, facilitated by According to three-electrode analyses, specific capacitances up 973 F 1 A g–1. Additionally, they demonstrated exceptional durability, maintaining 98% their 2000 cycles tested current 10 Furthermore, capacitance symmetric coin cell 627 The hydrogen evolution reaction were assessed in M KOH electrolyte utilizing setup. catalyst density mA cm–2 with an overpotential 325 mV Tafel slope 169 dec–1. it low charge transfer resistance (Rct) 88 Ω substantial double-layer (Cdl) 72.8 mF cm–2, highlighting its potential efficient electrocatalyst HER applications. These findings underscore practical applications investigate synergistic effects heteroatoms process CMPs, enhancing suitability supercapacitor, HER.

Language: Английский

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Pyrene-Linked Covalent Organic Polymer/Single-Walled Carbon Nanotubes Hybrids as High-Performance Electrodes for Supercapacitive Energy Storage

ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

Language: Английский

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Benzoxazine-linked polyhedral oligomeric silsesquioxane: 3D porous organic-inorganic polymer for improved CO2 capture and supercapacitor performance

Journal of the Taiwan Institute of Chemical Engineers, Journal Year: 2025, Volume and Issue: unknown, P. 106098 - 106098

Published: March 1, 2025

Language: Английский

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Conjugated Microporous Polymer Containing Pyrene and Dibenzo[g,p]chrysene Moieties as A Luminescent Powerhouse for Multi-Target Sensing and Environmental Safety

Microporous and Mesoporous Materials, Journal Year: 2025, Volume and Issue: unknown, P. 113620 - 113620

Published: March 1, 2025

Language: Английский

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Efficient uptake of iodine by conjugated microporous polymer@electrostatically spun silk-based composite membranes

Surfaces and Interfaces, Journal Year: 2025, Volume and Issue: unknown, P. 106362 - 106362

Published: March 1, 2025

Language: Английский

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Nitrogen–Oxygen Co-Doped Porous Carbons from Flexible Covalent Organic Frameworks for Supercapacitors

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 20, 2025

Language: Английский

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Chlorophyll-derived polymer films for superior performance supercapacitors

Materials Today Chemistry, Journal Year: 2025, Volume and Issue: 46, P. 102731 - 102731

Published: May 3, 2025

Language: Английский

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Covalent organic polymers with reactive site side chains: Synthesis, fluorescence effects and solvent-based colour development

Journal of Photochemistry and Photobiology A Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 116370 - 116370

Published: March 1, 2025

Language: Английский

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A redox-active covalent organic framework with azo units for supercapacitor applications

Polymer, Journal Year: 2025, Volume and Issue: unknown, P. 128484 - 128484

Published: May 1, 2025

Language: Английский

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