New Carbazole-Based Polymer with a D–A System as a Highly Stable Organic Electrode Material for an Asymmetric Supercapacitor DOI
G. V. P. N. Srikanth, Abhishek Narayanan, Deepak Devadiga

et al.

Energy & Fuels, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 23, 2024

Over the past few decades, conductive polymers have captured significant focus due to their distinct conducting properties and enhanced application in energy storage devices. In this regard, a novel strategy of donor–acceptor type polymer been synthesized via direct arylation polymerization method using palladium acetate as catalyst. The (named SP) exhibited good thermal stability 286.5 °C possessed lower band gap 2.3 eV which was determined from optical electrochemical techniques. SP exhibits three-electrode specific capacitance 611.2 F g–1 1 M KOH at current density A g–1. Further, applied positive electrode material, activated carbon used negative material asymmetric system. At 2 density, supercapacitor device be 140.13 It observed that an excellent 52.69 W h kg–1 2334 power cyclic up 10,500 cycles with retained initial capacity 92.6%.

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

Poonam Nagendra Singh,

Mohamed Gamal Mohamed,

Mohammed G. Kotp

et al.

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

Citations

0
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
Highly thermally stable polyhedral oligomeric silsesquioxane based on diacetal-functionalized polybenzoxazine nanocomposites DOI
Mohsin Ejaz,

Mohamed Gamal Mohamed,

Weichun Huang

et al.

European Polymer Journal, Journal Year: 2024, Volume and Issue: 223, P. 113649 - 113649

Published: Dec. 12, 2024

Language: Английский

Citations

3
Nitrogen, sulfur, oxygen-codoped porous carbon materials as high performance electrodes for supercapacitors and capacitive deionization DOI
Xinye Li, Shao‐Wei Bian

Journal of Electroanalytical Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 119062 - 119062

Published: March 1, 2025

Language: Английский

Citations

0
Tuning the Electrochemical Performance of Cu2S/Co3S4 via Optimized CNT Incorporation for High Energy and High Power Supercapacitor Application DOI
Arkapriya Das, Ankita Mondal, Bhanu Bhusan Khatua

et al.

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

Published: March 6, 2025

Language: Английский

Citations

0
Synchronous N-doping and activation of carbon aerogels derived from bamboo waste for high-performance supercapacitors DOI

Tang Xiao-jing,

Huaxu Song,

Junqi Liang

et al.

Diamond and Related Materials, Journal Year: 2024, Volume and Issue: unknown, P. 111809 - 111809

Published: Nov. 1, 2024

Language: Английский

Citations

1
New Carbazole-Based Polymer with a D–A System as a Highly Stable Organic Electrode Material for an Asymmetric Supercapacitor DOI
G. V. P. N. Srikanth, Abhishek Narayanan, Deepak Devadiga

et al.

Energy & Fuels, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 23, 2024

Over the past few decades, conductive polymers have captured significant focus due to their distinct conducting properties and enhanced application in energy storage devices. In this regard, a novel strategy of donor–acceptor type polymer been synthesized via direct arylation polymerization method using palladium acetate as catalyst. The (named SP) exhibited good thermal stability 286.5 °C possessed lower band gap 2.3 eV which was determined from optical electrochemical techniques. SP exhibits three-electrode specific capacitance 611.2 F g–1 1 M KOH at current density A g–1. Further, applied positive electrode material, activated carbon used negative material asymmetric system. At 2 density, supercapacitor device be 140.13 It observed that an excellent 52.69 W h kg–1 2334 power cyclic up 10,500 cycles with retained initial capacity 92.6%.

Language: Английский

Citations

1