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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Tetraphenylanthraquinone and Dihydroxybenzene-Tethered Conjugated Microporous Polymer for Enhanced CO₂ Uptake and Supercapacitive Energy Storage

JACS Au, Journal Year: 2024, Volume and Issue: 4(9), P. 3593 - 3605

Published: Aug. 16, 2024

Conjugated microporous polymers (CMPs) feature extended excellent porosity properties and fully conjugated electronic systems, making them highly effective for several uses, including photocatalysis, dye adsorption, CO2 capture, supercapacitors, so on. These are known their high specific surface area adjustable porosity. To synthesize DHTP-CMPs (specifically TPE-DHTP CMP Anthra-DHTP CMP) with abundant nitrogen (N) oxygen (O) adsorption sites spherical structures, we employed a straightforward Schiff-base [4 + 2] condensation reaction. This involved using 2,5-dihydroxyterephthalaldehyde (DHTP-2CHO) as the primary building block phenolic OH group source, along two distinct structures: 4,4′,4″,4"'-(ethene-1,1,2,2-tetrayl)tetraaniline (TPE-4NH2) 4,4′,4″,4"'-(anthracene-9,10-diylidenebis(methanediylylidene))tetraaniline (Anthra-4Ph-4NH2). The synthesized had remarkable BET (BETSA) of 431 m2 g–1. Additionally, it exhibited outstanding thermal stability, shown by Td10 505 °C. Furthermore, practical implementation, demonstrates significant capacity capturing CO2, measuring 1.85 mmol g–1 at temperature 273 K 1 bar. In three-electrode test, has capacitance 121 F 0.5 A even after undergoing 5000 cycles, maintains retention rate 79%. Due to pore characteristics, N O, conjugation properties, this Anthtra-DHTP holds potential capture supercapacitor applications. work will pave way development materials based on postmodification additional groups, facilitating use in photodegradation, lithium battery applications,

Language: Английский

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Boosting Supercapacitor Energy Storage Using Microporous Carbon Derived from an Octavinylsilsesquioxane and Fluorenone-Linked Porous Hybrid Polymer

ACS Applied Energy Materials, Journal Year: 2024, Volume and Issue: 7(17), P. 7505 - 7516

Published: Aug. 22, 2024

Supercapacitors (SCs), with their exceptional properties, offer a promising solution to the ongoing energy crisis, addressing growing demand for high-energy storage devices. Polymeric organic porous materials (POIPs) exhibit various sizes, precisely controlled porosities, lightweight nature, extensive surface areas, impressive intrinsic porosity, attractive chemistry, outstanding stability, and customizable structures functionalities. These features collectively render POIPs as cost-effective material applications in storage. This study successfully synthesized an octavinylsilsesquioxane (OVS)-FO-POIP through Heck coupling reaction between OVS 2,7-dibromo-9H-fluoren-9-one (DBFO). Confirmation of OVS-FO-POIP's chemical structure was achieved using solid-state 13C 29Si NMR Fourier transform infrared analyses. Subsequently, carbonization KOH activation at 900 °C yielded carbon material, denoted OVS-FO-POIP-900. Microporous characteristics were evidenced by specific area (SBET) values 264 m2 g–1 OVS-FO-POIP 387 OVS-FO-POIP-900 corresponding pore diameters 1.90 1.59 nm, respectively. Notably, demonstrated improved particular capacitance 776 F compared that (271 g–1) current density 1 A g–1, addition retention up 79% after 6000 cycles. The heightened enhances probability electrochemical reactions, thereby elevating levels. To delve deeper into performance, symmetric devices constructed both OVS-FO-POIP-900, exhibiting capacitances 167 268 Remarkably, performance these assessments, suggesting its potential suitability SC applications.

Language: Английский

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Thianthrene- and Thianthrene Tetraoxide-Functionalized Conjugated Microporous Polymers for Efficient Energy Storage

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 1, 2024

Language: Английский

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Preparation of Sulfonate-Grafted Tetraphenylethylene-Based Hyper-Cross-Linked Polymers for Efficient Adsorption of Organic Dyes in Aqueous Solutions

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(17), P. 10615 - 10624

Published: Aug. 23, 2024

Superhydrophilic hyper-cross-linked polymers (HCPs) have become useful adsorbents for dye disposal due to their ultrahigh surface areas, permanent pores, and excellent water dispersion. Herein, a simple synthetic method has been proposed the construction of hydrophilic tetraphenylethylene (TPE)-based HCPs via molecular knitting subsequent one-step sulfonation, aiming significantly improve adsorption performance toward cationic dyes. Compared hydrophobic precursor with area up 1561 m2 g–1 (HCTPE), target sulfonated HCP named SHCTPE lower but improved hydrophilicity affinity (primarily electrostatic interaction) representative dyes including methylene blue (MB) rhodamine B (RhB), demonstrating impressive rates >99% removal efficiency (η) in only 5 s pseudo-second-order rate constants (k2) 58.7 83.4 g mg–1 min–1, respectively. The capacity also reached 1410 mg MB 1096 RhB, surpassing most HCP-based adsorbents. More importantly, exhibited stability after five cycles, its corresponding adsorption-treated solution showed considerable biocompatibility growth wheat seeds. Our strategy may provide an approach develop superhydrophilic efficient organic aqueous solutions.

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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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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Room-Temperature Synthesis of a Fluorine-Functionalized Nanoporous Organic Polymer for Highly Efficient SF₆ Adsorption and Separation

ACS Macro Letters, Journal Year: 2024, Volume and Issue: 13(11), P. 1469 - 1475

Published: Oct. 21, 2024

Sulfur hexafluoride (SF

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Macromolecular Architecture in the Synthesis of Micro- and Mesoporous Polymers

Polymers, Journal Year: 2024, Volume and Issue: 16(23), P. 3267 - 3267

Published: Nov. 24, 2024

Polymers with micro- and mesoporous structure are promising as materials for gas storage separation, encapsulating agents controlled drug release, carriers catalysts sensors, precursors of nanostructured carbon materials, biomolecular immobilization cellular scaffolds, a low dielectric constant, filtering/separating membranes, proton exchange templates replicating structures, electrode energy storage. Sol–gel technologies, track etching, template synthesis used their production, including in micelles surfactants microemulsions sublimation drying. The listed methods make it possible to obtain pores variable shapes sizes 5–50 nm achieve narrow pore size distribution. However, all these technologically multi-stage require the use consumables. This paper presents review macromolecular architecture polymers extremely high surface area hierarchical porous polymers. polymer frameworks individual functional capabilities, required chemical structure, is based on unique possibilities developing matrix.

Language: Английский

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