Influence of the Processing Conditions on the Rheology and Heat of Decomposition of Solution Processed Hybrid Nanocomposites and Implication to Sustainable Energy Storage DOI Creative Commons
Andekuba Andezai, Jude O. Iroh

Energies, Journal Year: 2024, Volume and Issue: 17(16), P. 3930 - 3930

Published: Aug. 8, 2024

This study investigates the properties of solution-processed hybrid polyimide (PI) nanocomposites containing a variety nanofillers, including polyaniline copolymer-modified clay (PNEA), nanographene sheets (NGSs), and carbon nanotube (CNT-PVDFs). Through series experiments, flow behavior poly(amic acid) (PAA) solution PAA suspension (PNEA) is determined as function shear rate, processing temperature, polymerization time. It shown that neat exhibits complex rheological ranging from thickening to Newtonian with increasing rate testing temperature. The presence modified in significantly reduced viscosity PAA. Differential scanning calorimetry (DSC) analysis showed polyimide–nanographene sheet (PI NGS) processed at high spindle speed (100 rpm) have lower total heat decomposition, which indicative improved fire retardancy. effect temperature on specific capacitance polyimide–CNT-PVDF composite electrodeposited polypyrrole using cyclic voltammetry (CV). working electrode material 90 °C produces remarkably higher overall stored charge when compared 250 °C. Consequently, obtained scan 5 mV/s for nanocomposite around 858 F/g after one cycle, about 6.3 times than 136 produced by These findings show are influenced conditions highlight need process optimization.

Language: Английский

Finite Element Investigation of the Influence of Porosity and Resin Infiltration on the Electrical Conductivity of Carbon Nanotube Yarns DOI Open Access
F. Avilés,

Saúl Cabañas‐Valdovinos,

A.I. Oliva-Avilés

et al.

Advanced Engineering Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 15, 2025

Carbon nanotube (CNT) yarns (CNTYs) are porous fibers with a myriad of applications based on their electrical response. This study presents an finite element model the cross section CNTYs, comprising smaller hierarchical elements (CNT bundles) arranged in hexagonal pattern. The captures most relevant mechanisms explaining effect porosity and resin infiltration conductivity CNTY reproduces experimental data. is generated random algorithm that avoids void clustering. assists factors modify resistivity when liquid polymer infiltrates it. suggests increases sigmoidal fashion increased porosity, highest sensitivity occurring between 40% 60% porosity. findings better reproduced if bundle diameter concomitantly changes yarn's CNTY's strongly depends infiltrating extent infiltration. outer 20–30% radius sensitive to High predicted during first polymerization stages thermosetting CNTY.

Language: Английский

Citations

0
Impact of carbon on global and regional economies: analyzing economic growth, employment, and trade balances through artificial neural networks DOI
Siqi Liu, Yousef Zandi,

Alireza Sadighi Agdas

et al.

Carbon letters, Journal Year: 2025, Volume and Issue: unknown

Published: March 8, 2025

Language: Английский

Citations

0
Green and sustainable synthesis of MWCNT@g-C₃N₄@Ag photocatalyst from PET for efficient wastewater treatment DOI Creative Commons

Peymaneh Dehghan,

Mohsen Abbasi, Ahmad Azari

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: March 27, 2025

Due to the global water crisis, reclamation has been at heart of consideration by scientific communities in recent years. The main objective this study was synthesis a green and sustainable photocatalyst from waste, specifically polyethylene terephthalate plastic bottles, for efficient removal methylene blue (MB). characterization novel MWCNT@g-C₃N₄@Ag carried out using FESEM, EDS-MAP, Raman, XRD, DLS analysis. optimization approach, based on Response Surface Methodology (RSM), demonstrated that pH initial concentration were primary factors improving MB degradation. Also, increasing dosage reaction time appropriate wastewater treatment. Furthermore, predicted values showed strong agreement with experimental results, R2 = 0.95, Adj-R2 0.93, p-value less than 0.0001. optimized found be 12.6 mg L− 1, 9, 0.52 g 231 min, achieving efficiency 99.89%. MWCNTs@g-C3N4@Ag superior photocatalytic performance compared as-prepared multi-walled carbon nanotubes (MWCNTs). Consequently, can recommended as promising degradation due its environmental friendliness, low-cost precursors, excellent purification performance.

Language: Английский

Citations

0
Groundwater Electro-Bioremediation via Diffuse Electro-Conductive Zones: A Critical Review DOI Creative Commons
Federico Aulenta, Matteo Tucci, Carolina Cruz Viggi

et al.

Environmental Science and Ecotechnology, Journal Year: 2024, Volume and Issue: 23, P. 100516 - 100516

Published: Nov. 24, 2024

Language: Английский

Citations

1
Influence of the Processing Conditions on the Rheology and Heat of Decomposition of Solution Processed Hybrid Nanocomposites and Implication to Sustainable Energy Storage DOI Creative Commons
Andekuba Andezai, Jude O. Iroh

Energies, Journal Year: 2024, Volume and Issue: 17(16), P. 3930 - 3930

Published: Aug. 8, 2024

This study investigates the properties of solution-processed hybrid polyimide (PI) nanocomposites containing a variety nanofillers, including polyaniline copolymer-modified clay (PNEA), nanographene sheets (NGSs), and carbon nanotube (CNT-PVDFs). Through series experiments, flow behavior poly(amic acid) (PAA) solution PAA suspension (PNEA) is determined as function shear rate, processing temperature, polymerization time. It shown that neat exhibits complex rheological ranging from thickening to Newtonian with increasing rate testing temperature. The presence modified in significantly reduced viscosity PAA. Differential scanning calorimetry (DSC) analysis showed polyimide–nanographene sheet (PI NGS) processed at high spindle speed (100 rpm) have lower total heat decomposition, which indicative improved fire retardancy. effect temperature on specific capacitance polyimide–CNT-PVDF composite electrodeposited polypyrrole using cyclic voltammetry (CV). working electrode material 90 °C produces remarkably higher overall stored charge when compared 250 °C. Consequently, obtained scan 5 mV/s for nanocomposite around 858 F/g after one cycle, about 6.3 times than 136 produced by These findings show are influenced conditions highlight need process optimization.

Language: Английский

Citations

0