Facilitating Charge Separation of Donor–Acceptor Conjugated Microporous Polymers via Position Isomerism Strategy for Efficient CO2 Photoconversion DOI Open Access

Dandan Wang,

Xiaofei Yan,

Xinsheng Zhu

et al.

Catalysts, Journal Year: 2024, Volume and Issue: 14(10), P. 659 - 659

Published: Sept. 24, 2024

Photoreduction of CO2 into the chemical feedstocks fuels provides a green way to help solve both energy crisis and carbon emission issues. Nevertheless, undesirable charge separation migration, as well rapid reverse recombination results in unsatisfactory photocatalytic activity most conjugated microporous polymers (CMPs). Herein, pair donor–acceptor (D-A) CMPs for photoconversion was developed through position isomerism by altering linkage sites. The show that Py-D27F with 2,7-site exhibits completely structure large molecular dipole moment, thus significantly accelerating transfer. As result, achieves higher yield 320.9 μmol g−1 h−1 CO2-to-CO photoreduction (without addition any photosensitizers precious metals), which is about three-fold greater than Py-D36F (3,6-site linkage). This study valuable idea exploring outstanding CMP photocatalysts efficient processing photocatalysis.

Language: Английский

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

Mohamed Gamal Mohamed,

Mohammed G. Kotp,

Aya Osama Mousa

et al.

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

Citations

3
Tetraphenylanthraquinone and Dihydroxybenzene-Tethered Conjugated Microporous Polymer for Enhanced CO2 Uptake and Supercapacitive Energy Storage DOI Creative Commons

Mohamed Gamal Mohamed,

Chia-Chi Chen,

Mervat Ibrahim

et al.

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

Citations

14
Boosting Supercapacitor Energy Storage Using Microporous Carbon Derived from an Octavinylsilsesquioxane and Fluorenone-Linked Porous Hybrid Polymer DOI Creative Commons
Abdul Basit,

Mohamed Gamal Mohamed,

Mohsin Ejaz

et al.

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

Citations

9
Thianthrene- and Thianthrene Tetraoxide-Functionalized Conjugated Microporous Polymers for Efficient Energy Storage DOI Creative Commons
Abdul Basit,

Mohamed Gamal Mohamed,

Santosh U. Sharma

et al.

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

Published: Oct. 1, 2024

Language: Английский

Citations

7
Rational Engineering and Synthesis of Pyrene and Thiazolo[5,4-d]thiazole -Functionalized Conjugated Microporous Polymers for Efficient Supercapacitor Energy Storage DOI
Abdul Basit,

Yang‐Chin Kao,

Yasser A. El‐Ossaily

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(44), P. 30508 - 30521

Published: Jan. 1, 2024

The Py-Th-TzTz CMP was synthesized through a Schiff base reaction and exhibited decomposition temperature ( T d10 ) of 352 °C. In three-electrode system, it demonstrated specific capacitance 652 F g −1 .

Language: Английский

Citations

5
Efficient synthesis of main chain thermosetting polybenzoxazine resin containing tert-butylcyclohexanone and diphenylmethane units for supercapacitor energy storage DOI
Kamal I. Aly,

Shymaa Mostafa Ebrahium,

Hani Nasser Abdelhamid

et al.

European Polymer Journal, Journal Year: 2024, Volume and Issue: unknown, P. 113519 - 113519

Published: Oct. 1, 2024

Language: Английский

Citations

5
Pyrene-Linked Covalent Organic Polymer/Single-Walled Carbon Nanotubes Hybrids as High-Performance Electrodes for Supercapacitive Energy Storage DOI Creative Commons

Mohamed Gamal Mohamed,

Abdul Basit, Chih‐Cheng Shih

et al.

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

Published: March 12, 2025

Language: Английский

Citations

0
Efficient uptake of iodine by conjugated microporous polymer@electrostatically spun silk-based composite membranes DOI

Anli Yi,

Yong‐Wei Zhang,

Qianzhi Chen

et al.

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

Published: March 1, 2025

Language: Английский

Citations

0
Covalent organic polymers with reactive site side chains: Synthesis, fluorescence effects and solvent-based colour development DOI

Qiang Lia,

Fei Xin,

Liyang Li

et al.

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

Published: March 1, 2025

Language: Английский

Citations

0
Near-IR absorbing Tetraene-linked π-Conjugated Porous Polymer for Energy Storage and Electrical Conductivity DOI Creative Commons

Vinutha K. Venkatareddy,

Hamidreza Parsimehr, Anna Ignaszak

et al.

Chemical Communications, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Tetraene-linked diketopyrrolopyrrole (DPP)-based CMPs were developed via Knoevenagel condensation. The CMP has been characterized with NIR absorption (∼1200 nm) and high electrical conductivity (0.2 S m −1 ).

Language: Английский

Citations

0