Investigating Molecular Interactions through Computational Modeling, Thermodynamic Analysis, and Acoustic Measurements of LiOTf in Aqueous TEGDME and DME Solutions at Different Temperatures DOI Creative Commons

Chitra Sharma,

Harpreet Kaur, Abhinay Thakur

et al.

ACS Omega, Journal Year: 2024, Volume and Issue: 10(1), P. 754 - 768

Published: Dec. 24, 2024

This study investigates solute–solvent interactions in ternary systems consisting of lithium trifluoromethanesulfonate (LiOTf) as the solute and tetraethylene glycol dimethyl ether (TEGDME) 1,2-dimethoxyethane (DME) solvents over a range temperatures (293.15–313.15 K). A multidisciplinary approach involving computational modeling, thermodynamic analysis, acoustic measurements was used to elucidate molecular-level dynamics. The positive Vϕ0 values analysis revealed prevalence investigated (LiOTf + H2O DME/TEGDME) solutions. Hepler's constant determined predict structure maker/breaker behavior. Cyclic voltammetry showed that TEGDME offers higher electrochemical window (EW) 1.36 V 0.01 1.40 0.05 compared with 1.25 DME 1.38 DME, yielding favorable comparable working EWs. DFT calculations using B3LYP functional 6-311++G(d,p) basis set provided insights into electron-donating -accepting properties molecules, showing reactivity for LiOTf. These findings present novel electrolyte systems, which hold potential applications energy storage technologies.

Language: Английский

Electrospray Deposition of PEDOT:PSS on Carbon Yarn Electrodes for Solid-State Flexible Supercapacitors DOI Creative Commons
Mariana Peyro Moniz, Amjid Rafique, João Carmo

et al.

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(25), P. 30727 - 30741

Published: June 19, 2023

The increasing demand for flexible electronic devices has risen due to the high interest in textiles (e-textiles). Consequently, urge power e-textiles sparked enormous energy storage devices. One-dimensional (1D) configuration supercapacitors are most promising technology textile applications, but often their production involves complex synthesis techniques and expensive materials. This work unveils use of novel electrospray deposition (ESD) technique poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonate) (PEDOT:PSS). methodology on conductive carbon yarns creates electrodes with a surface area. conditions PEDOT:PSS were optimized, influence electrochemical performance 1D symmetric supercapacitor cellulose-based gel as an electrolyte separator was evaluated. tests herein reported show that these capacitors exhibited specific capacitance 72 mF g-1, excellent cyclability more than 85% retention after 1500 cycles, outstanding capability bending.

Language: Английский

Citations

19
Multifunctional fibrous films fabricated by microfluidic blow spinning for the preservation of fresh-cut apples DOI
Chaoyi Shen,

Jingshan Rao,

Di Wu

et al.

Postharvest Biology and Technology, Journal Year: 2024, Volume and Issue: 211, P. 112807 - 112807

Published: Feb. 4, 2024

Language: Английский

Citations

7
Solution blow co-spinning of cellulose acetate with poly(ethylene oxide). Structure, morphology, and properties of nanofibers DOI Creative Commons
Ana Kramar, Thomas Luxbacher, J. González‐Benito

et al.

Carbohydrate Polymers, Journal Year: 2023, Volume and Issue: 320, P. 121225 - 121225

Published: July 20, 2023

Cellulose acetate (CA) nanofibers are prepared using solution blow co-spinning (SBS) with poly(ethylene oxide) (PEO). The pure CA membranes obtained by washing water-soluble PEO from the fibrous CA-PEO blend. Nanofibrous characterized optical and scanning electron microscopy (SEM), differential calorimetry (DSC), infrared spectroscopy (ATR-FTIR), surface zeta potential measurements. Thermal transitions DSC ATR-FTIR spectra analysis were used to confirm removal of PEO. Although characteristic signals not observed FTIR, an additional thermal step transition in indicates embedding a small amount (up 6 wt%). SEM shows that blends constituted fibers mean diameters 671 857 nm (depending on SBS parameters), while after removal, range 567 605 nm. We propose new method for staining iodine absolute ethanol allows differentiation components microscope. results suggest assists spinning enveloping nanofibers, allowing uninterrupted processing. successful deacetylation cellulose aqueous KOH is confirmed measurements ATR-FTIR.

Language: Английский

Citations

15
Principles of fractional signal processing DOI Creative Commons
Manuel Duarte Ortigueira

Digital Signal Processing, Journal Year: 2024, Volume and Issue: 149, P. 104490 - 104490

Published: March 28, 2024

A general framework for fractional signal processing is described and used to derive several interesting formulations. This scheme based on the Liouville approach that gave rise classic Riemann-Liouville Liouville-Caputo derivatives, here dismissed. Liouville's idea consisted of fractionalizing transfer function basic definition derivative. Various coherent formulations are introduced from suitable derivative definitions corresponding ARMA-type linear systems obtained. In particular, Euler discrete-time, continuous-time, bilinear (Tustin), scale-invariant studied as applications proposed scheme. The two-sided derivatives also considered.

Language: Английский

Citations

6
Oil/water separation with hydrophobic/oleophilic silica-shelled cellulose aerogels DOI
Yue Sun,

Chengxi Deng,

Hua Dong

et al.

Geoenergy Science and Engineering, Journal Year: 2024, Volume and Issue: 240, P. 213043 - 213043

Published: June 17, 2024

Language: Английский

Citations

4
Facile development of flexible cellulose acetate-lead dioxide membrane electrodes for supercapacitor applications DOI Creative Commons

Adithya Maurya K.R.,

Bipin S. Chikkatti, Ashok M. Sajjan

et al.

Next Energy, Journal Year: 2024, Volume and Issue: 5, P. 100178 - 100178

Published: Aug. 27, 2024

Citations

4
Solution Blow Spinning: An Emerging Nanomaterials‐Based Wound‐Care Technology DOI Creative Commons
Md. Salauddin Sk, Ruth Mwangomo,

Leo Daniel

et al.

Journal of Biomedical Materials Research Part B Applied Biomaterials, Journal Year: 2025, Volume and Issue: 113(2)

Published: Jan. 24, 2025

ABSTRACT Application of one‐dimensional nanofibers have witnessed exponential growth over the past few decades and are still emerging with their excellent physicochemical electrical properties. The driving force behind this intriguing transition lies in unique high surface‐to‐volume ratio, ubiquitous nanodomains, improved tensile strength, flexibility to incorporate deliberate functionalities required for specific advanced applications. Besides numerous benefits, nanomaterials may adversely interact biological tissues potentially be cytotoxic carcinogenic. However, precisely engineered design can outperform risk myriad benefits. Wound care technologies evolving, products involved wound management a yearly market value $15–22 billion. Solution blow spinning (SBS) is facile technique synthesize biocompatible scalable processing variables multidirectional biomedical SBS feasible wide range thermoplastic polymers fabricate nanocomposites. This review will focus on relevance technology care, including dressings, drug delivery, tissue engineering scaffolds, sensors.

Language: Английский

Citations

0
Eco-Friendly Lithium Separators: A Frontier Exploration of Cellulose-Based Materials DOI Open Access
Tian Zhao,

Pengcheng Xiao,

Mingliang Luo

et al.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(13), P. 6822 - 6822

Published: June 21, 2024

Lithium-ion batteries, as an excellent energy storage solution, require continuous innovation in component design to enhance safety and performance. In this review, we delve into the field of eco-friendly lithium-ion battery separators, focusing on potential cellulose-based materials sustainable alternatives traditional polyolefin separators. Our analysis shows that cellulose materials, with their inherent degradability renewability, can provide exceptional thermal stability, electrolyte absorption capability, economic feasibility. We systematically classify analyze latest advancements highlighting critical role superior hydrophilicity mechanical strength improving ion transport efficiency reducing internal short circuits. The novelty review lies comprehensive evaluation synthesis methods cost-effectiveness addressing significant knowledge gaps existing literature. explore production processes scalability detail, propose innovative modification strategies such chemical functionalization nanocomposite integration significantly separator performance metrics. forward-looking discussion predicts development trajectory identifying key areas for future research overcome current challenges accelerate commercialization these green technologies. Looking ahead, separators not only have meet but also exceed benchmarks set by providing compelling solutions next generation batteries.

Language: Английский

Citations

3
Cellulose Acetate and Polycaprolactone Fibre Coatings on Medical-Grade Metal Substrates for Controlled Drug Release DOI Open Access
Catarina Cidade do Carmo, Miguel Brito, J.P. Oliveira

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(14), P. 2006 - 2006

Published: July 13, 2024

This study explores a method that has the potential to be cost effective in inhibiting biofilm formation on metallic prostheses, thereby preventing rejection or requirement for replacement. A cost-effective metal alloy used biomedical implants was chosen as substrate, and ibuprofen (Ibu), well-known anti-inflammatory drug, selected drug release tests its widespread availability accessibility. Multilayer coatings consisting of cellulose acetate (CA), polycaprolactone (PCL), chitosan (CHI), with without (Ibu) content, were applied onto medical-grade stainless steel (SS-316 type) through electrospinning, electrospray, blow spinning. The adhesion CA, PCL, layered CA/PCL membranes, thicknesses ranging from 20 100 μm, SS substrates varied between 0.15 N 0.22 CHI, which increased 0.21 0.74 N, respectively, when CHI interlayer introduced by electrospraying coatings. Although simulated body fluid (SBF) medium is predominantly governed diffusion-driven mechanisms all single- multilayer coatings, delayed noted CA containing Ibu overlaid PCL coating produced suggests avenues further investigations into combinations both drug-imbued layers.

Language: Английский

Citations

3
Enhancing charge storage capacity of cellulose-sweat-based electrolyte flexible supercapacitors with electrochemically exfoliated free-standing carbon yarn electrodes DOI Creative Commons
Amjid Rafique, I. Ferreira, Nenad Bundaleski

et al.

FlatChem, Journal Year: 2024, Volume and Issue: 47, P. 100724 - 100724

Published: Aug. 6, 2024

The Internet of Things (IoT) provides an interface between different electronic devices such as flexible electronics, and e-textiles to capture receive real-time data help humans devise systems that will adequately respond these environmental stimuli. main limitations work 24/7 are the lack continuous power supply easy integration into textiles perform their functions. other issues poor adhesion active materials with substrates peeling-off material from electrode consequently, degradation electrochemical performance. A potential evolving strategy is fabricating a current collector-less integrable carbon yarn-based energy storage device. Herein, we presenting facile novel technique exfoliate yarn fibers enhance performance by 3 orders magnitude. Activated wires acting electrodes along cellulose acetate-based composite separators offer large surface area simulated sweat electrolyte ions show gravimetric capacitance 11.28 Fg−1 at scan rate 5 mVs−1. symmetric supercapacitor device in solution offers excellent cyclic bending stability over 95 % retention both tests. Supercapacitors (SCs) comprise many passive elements. most vital elements collectors, separators, binders, electrolytes, packaging. Two key elements, collector binders can be eliminated developing collector-free or free-standing electrodes. Carbonaceous graphene [1], [2], nanotubes (CNT) [3], porous onions[4], [5] common alternatives for SCs owing low cost, chemical stability, area, high electrical conductivity. These exceptional attributes long life, high-rate capability intrinsic operation mechanism e.g., charge due area. However, they also suffer specific ascribed exposed wettability. efficient address this problem incorporate doped heteroatoms functional groups oxygen present on yarn. inclusion boosts properties, conductivity, increased electro-active more sites ions, resulting higher pseudocapacitance [6], [7], [8]. Carbon comprised long-chain filaments 2.5–5 µm radius, mechanical light weightiness make it candidate SCs. its capacitance, limited porosity, failed directly exploited applications.

Language: Английский

Citations

2