Results 51 to 60 of about 14,179 (307)

The effects of surface modifications of multiwalled carbon nanotubes on their dispersibility in different solvents and poly(ether ether ketone) [PDF]

, 2014
The effects of surface modifications of multi-walled carbon nanotubes (MWCNTs) on their dispersibility in different solvents and poly (ether ether ketone) (PEEK) have been studied.
Cao, Zongshuang, Chen, Yong, Liu, Xuguang, Qiu, Li, Yang, Yongzhen   +4 more
core   +1 more source

Controlled drug delivery through tailor-made blend polymeric membranes [PDF]

, 2005
In this work, we prepare tailor-made membranes by blending sulfonated poly(ether ether ketone) (S-PEEK) and poly(ether sulfone) (PES) polymers, at various ratios.
Balster, J.H., Koops, G.H., Rolevink, Hendrikus H.M., Stamatialis, Dimitrios   +3 more
core   +3 more sources

Development of sulfonated poly(ether ether ketone)/polyethersulfone‐crosslinked quaternary ammonium poly(ether ether ketone) bipolar membrane electrolyte via hot‐press approach for hydrogen/oxygen fuel cell

International Journal of Energy Research, 2021
Hot‐pressing is a simple and promising technique for the integration of a proton exchange membrane (PEM) and anion exchange membrane (AEM) to allow both positive and negative ions simultaneously in a bipolar membrane (BPM).
S. Daud, M. A. Norddin, J. Jaafar, R. Sudirman   +3 more
semanticscholar   +1 more source

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

, 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), Hakim, M. F. (Muhammad), Kusworo, T. D. (Tutuk)   +2 more
core   +1 more source

Anchoring Water Soluble Phosphotungstic Acid by Hybrid Fillers to Construct Three-Dimensional Proton Transport Networks

Membranes, 2021
Phosphotungstic acid (HPW)-filled composite proton exchange membranes possess high proton conductivity under low relative humidity (RH). However, the leaching of HPW limits their wide application.
Shaojian He, Zhongrui Lu, Wenxu Dai, Kangning Yang, Yang Xue, Xiaoyang Jia, Jun Lin   +6 more
doaj   +1 more source

Development of proton conductive polymer electrolytes composed of sulfonated poly(ether ether ketone) and Brønsted acidic ionic liquid (1-methylimidazolium tetrafluoroborate)

Journal of Materials Science: Materials in Electronics, 2021
This article relates to the synthesis, characterization and dielectric measurements of solid polymer electrolytes, derived from the ionic interaction of sulfonated poly(ether ether ketone) (sPEEK) and a Brønsted acidic ionic liquid (1-methylimidazolium ...
Mesut Yılmazoğlu
semanticscholar   +1 more source

Composite Membranes of Sulfonated Poly(ether ether ketone) with Active Carbon: Composite Preparation and Investigation of their Properties for Potential Application for CO2 Electrochemical Reduction

Medžiagotyra, 2020
In this study, synthesis of sulfonated poly(ether ether ketone) (SPEEK) was performed using sulfonation method with concentrated sulfuric acid. Polymer with three degrees of sulfonation was obtained: 0.87; 0.82 and 0.74.
Deniss FEDORENKO, Guntars VAIVARS
doaj   +1 more source

Sulfonation degree effect on ion-conducting SPEEK-titanium oxide membranes properties

Polímeros, 2017
Polymeric membranes were developed using a SPEEK (sulfonated poly(ether ether ketone)) polymer matrix, containing titanium oxide (TiO2) (incorporated by sol-gel method). SPEEK with different sulfonation degrees (SD): 63% and 50% were used.
Jacqueline Costa Marrero, Ailton de Souza Gomes, Wang Shu Hui, José Carlos Dutra Filho, Vivianna Silva de Oliveira   +4 more
doaj   +1 more source

Thermoenhanced osmotic power generator via lithium bromide and asymmetric sulfonated poly(ether ether ketone)/poly(ether sulfone) nanofluidic membrane

NPG Asia Materials, 2021
Osmotic energy, existing between solutions with different concentrations, is a sustainable and ecofriendly resource for solving energy issues. However, current membrane-based osmotic energy conversion technologies focus on electricity generation from an “
Yue Sun, Yadong Wu, Yuhao Hu, Congcong Zhu, Hao Guo, Xiangyu Kong, E. Luo, Lei Jiang, L. Wen   +8 more
semanticscholar   +1 more source

Sustainable fabrication of solvent-free cation exchange membrane via tuning sulfonation time of PEEK

Desalination and Water Treatment
Researchers have been looking at novel strategies to lessen the environmental effect of various industrial processes in recent years due to the growing concern over environmental sustainability on a worldwide scale. The creation of eco-friendly materials
Muhammad Farman, Farhat Yasmeen, Muhammad Aamir Shehzad, Hafiz Muhammad Raoof Amin, Muhammad Farhan   +4 more
doaj   +1 more source