Results 61 to 70 of about 6,156 (199)

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

open access: yesMaterials for Renewable and Sustainable Energy
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
Mohamed Amine Ben Moussa   +8 more
doaj   +1 more source

Electrochemical Properties of Poly(aminobenzene sulfonic)phosphazene Derivative Grafted SPEEK Proton Exchange Membrane

open access: yesInternational Journal of Electrochemical Science, 2015
A type of poly(aminobenzene sulfonic)phosphazene derivative grafted SPEEK was synthesized which were confirmed by FT-IR and NMR analysis. And a series of grafted SPEEK proton exchange membranes with 65% sulfonation degree were prepared.
Zhengping Zhao   +3 more
doaj   +1 more source

Fabrication and development of SPEEK/PVdF-HFP/SiO2 proton exchange membrane for microbial fuel cell application

open access: yesChemical Engineering Journal Advances, 2023
This study presents the potential of sulfonated poly (ether-ether-ketone)/ poly (vinylidene fluorideco-hexafluoro propylene)/SiO2 (SPEEK/PVdF-HFP/SiO2) composite proton exchange membrane for the use of microbial fuel cell.
Jagdeep Kumar Nayak   +2 more
doaj   +1 more source

Ion‐Selective Microporous Membranes via One‐Step Copolymerization Enable High‐Performance Redox Flow Batteries

open access: yesAdvanced Functional Materials, Volume 36, Issue 12, 9 February 2026.
A scalable one‐step copolymerization strategy is developed to produce low‐cost microporous ion exchange membranes that boost both the efficiency and lifespan of flow batteries. When combined with organic electrolytes in aqueous systems, these membranes enable safe and cheap flow battery energy storage, supporting the widespread integration of renewable
Jiaye Liu   +7 more
wiley   +1 more source

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

open access: yesMaterials for Renewable and Sustainable Energy
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).
Mohamed A. Ben Ali   +5 more
doaj   +1 more source

A low-speed BIST framework for high-performance circuit testing [PDF]

open access: yes, 2000
Testing of high performance integrated circuits is becoming increasingly a challenging task owing to high clock frequencies. Often testers are not able to test such devices due to their limited high frequency capabilities.
Kerkhoff, H.G.   +3 more
core   +1 more source

Enhancement of Hybrid SPEEK Based Polymer–Cyclodextrin-Silica Inorganic Membrane for Direct Methanol Fuel Cell Application [PDF]

open access: yes, 2017
Direct methanol fuel cell (DMFC) is one of several types of fuel cells that use proton exchange membrane (PEM) as a liaison between the reaction at the cathode and anode.
Hadiyanto, H. (H)   +2 more
core   +1 more source

AI‐Driven Predictive Design and Functionalization of Three Dimensional‐Printed PEEK Implants with Tryptophan‐Enriched Alginate Hydrogel for Enhanced Biomimetic Surface Performance

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 2, February 2026.
This study introduces an AI‐guided strategy to design 3D‐printed PEEK implants functionalized with a tryptophan‐enriched alginate hydrogel (TRYALPEEK). The modification improves hydrophilicity, reduces surface roughness, enhances cytocompatibility, and optimizes stress distribution. The platform offers a promising route for personalized implant design,
Wafa Benaatou   +8 more
wiley   +1 more source

A Review on Applications and Challenges of Fullerenes in Proton Exchange Membranes

open access: yesCarbon Energy, Volume 8, Issue 2, February 2026.
This review is devoted to the analysis of the use of fullerenes and their functionalized derivatives to improve the efficiency of proton exchange membranes. The synthetic methods, structure, properties, and proton transfer mechanisms of fullerene‐containing membranes are discussed in detail. Promising areas of scientific research are discussed, and key
Ruslan Usmanov, Alexander Pozdnyakov
wiley   +1 more source

Dusty Streets: The Challenge of Dust‐Borne Pollutants in Low‐Income Countries

open access: yesCLEAN – Soil, Air, Water, Volume 54, Issue 2, February 2026.
Generally, pollution impacts developed and low‐income countries (LICs) to different extents, and the disease burden due to roadway dust is not uniformly distributed across socio‐economic classes. Roadway dust materials from paved and unpaved urban and rural roads were reported to contain organic constituents which are toxic and affect public health ...
Abimbola E. Oluwalana‐Sanusi   +9 more
wiley   +1 more source

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