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Clean Energy and Renewable Tech

Proton conductivity amelioration of chitosan via novel Schiff base formation with oxidized polyvinyl alcohol for proton exchange membrane

proton exchange membrane

Qana A. Alsulami1 · Wafa A. Bawazir1 · Sherif M. A. S. Keshk2 Received: 14 December 2024 / Accepted: 25 February 2025 © Qatar University and Springer Nature Switzerland AG 2025 Abstract Chitosan (CS) is a naturally occurring biopolymer that is readily accessible and widely used in various industrial applications. However, its low proton conductivity, particularly at elevated temperatures, poses […]

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Clean Energy and Renewable Tech

Enhanced proton conductivity of sulfonated poly(ether ether ketone) incorporating oxidized polyvinyl alcohol for high‑performance proton exchange membranes

high‑performance proton exchange membranes

Mohamed A. Ben Ali1 · Mohamed A. Ben Moussa2 · Souhib Umer Ilyas1 · Rizwan Nasir1 · Dorra Ghorbel3,4 · Sherif M. A. S. Keshk5 Received: 28 October 2024 / Accepted: 18 March 2025 © The Author(s) 2025 Abstract Alternative proton exchange membranes (PEMs) with high proton conductivity must be fabricated at reasonable costs to qualify as commercially used proton-exchange membrane fuel cells (PEMFCs). Read more

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Clean Energy and Renewable Tech

Materials for Renewable and Sustainable Energy

Materials for Renewable and Sustainable Energy is an open access journal, focusing on research for renewable and sustainable energy technologies.

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Nanotechnoly and materials science

Performance of high sulfonated poly(ether ether ketone) improved with microcrystalline cellulose and 2,3-dialdehyde cellulose for proton exchange membranes

Sulfonated poly (ether ether ketone) (SPEEK) has received substantial attention for its potential to improve the electrochemical behavior and thermomechanical capabilities of direct methanol fuel cells. This study examines how the integration by solution casting of microcrystalline cellulose (MCC) and 2,3-dialdehyde cellulose (DAC) onto highly sulfonated PEEK (with a sulfonation degree of 80%) affects its […]

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Nanotechnoly and materials science

Methyl Orange Adsorption onto Modified Extracted Cellulose from Olive Stones: Kinetics, Isotherms, Thermodynamic, Mechanism Studies, and Desorption

OS (olive stones) are a type of lingo-cellulosic biomass that is generated as a by-product in the olive oil industry. In this investigation, the EC (extracted cellulose) from the olive stones was modified with CTAB (cetyl trimethyl ammonium bromide) as cationic surfactant. The obtained MEC (modified extracted cellulose) was used as adsorbent to remove MO […]

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Nanotechnoly and materials science

Sulfo ethyl cellulose/Nafion composite forhigh-temperature proton exchange membrane

This study investigated the potential enhancement of proton conductivity in Nafion membranes through the incorporation of sulfo ethyl cellulose (SEC) at varying weight ratios (5 and 10 wt.%). Results indicated that increasing the weight ratio of SEC led to improvements in water absorption, activation energy, and proton conductivity within the composite membranes. Specifically,the composite membrane […]

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Nanotechnoly and materials science

Natural Language Processing for Detecting Brand Hate Speech

Brand hate is a complex feeling that is not easy for companies to recognize. Mednini and Turki (2022) have confirmed that hate can originate from genuine brand haters or an employee who works with competitors, to spread negative word-of-mouth in communities. That is why it is important to detect this emotion. This study aims to […]

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Nanotechnoly and materials science

Signifcant augmentation of proton conductivity in lowsulfonated polyether sulfone octyl sulfonamide membranesthrough the incorporation of hectorite clay

Graphene - Laser-induced porous graphene electrodes from polyketimine membranes for paracetamol sensing - Become

An innovative methodology was employed to fabricate ion exchange membranes tailored for fuel cell applications. Thisapproach entailed blending low sulfonated polyether sulfone octyl sulfonamide (LSPSO) with Hectorite (Hect) clay atvarying weight percentages (1 wt%, 3 wt%, and 6 wt%). The resultant composite membranes underwent comprehensivecharacterization via Fourier transform infrared spectroscopy, X-ray difraction, scanning electron microscopy, […]

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Author: Prof Test
Nanotechnoly and materials science

Incorporating of sulfo ethyl cellulose to augment the performanceof sulfonated poly (ether ether ketone) composite for protonexchange membrane fuel cells

Composite membranes comprising sulfonated poly (ether ether ketone) (SPEEK) blended with varying proportions of sulfo ethyl cellulose (SEC) at 5 wt% and 10 wt% were fabricated for fuel cell application. The structural, morphological, andthermal properties of these membranes were investigated using Fourier transform infrared spectroscopy, X-ray difraction, scanning electron microscopy, and thermogravimetric analysis. The composite […]

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Nanotechnoly and materials science

Incorporation of multilayered double hydroxides/sepiolite augmentsproton conductivity performance in low sulfonated polyether sulfoneoctyl sulfonamide

Low-sulfonation-level polyether sulfone octyl sulfonamide (LSPSO) was blended with a layered double hydroxides (LDHs, Mg2AlCl)/sepiolite nanostructure clay as a fller to create an electrolyte membrane for fuel cell applications. Comprehensive characterization of the composite membranes was conducted, encompassing Fourier-transform infrared spectroscopy, X-ray difraction, mechanical stability assessment, thermal gravimetric analysis, ion exchange capability, swelling characteristics, water […]

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