Results 61 to 70 of about 6,144 (201)

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

Chemical 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, Uday Shankar, Kundan Samal   +2 more
doaj   +1 more source

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

CLEAN – 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, Simbarashe Jombo, Johane Hlatywayo, Wisdom A. Munzeiwa, Thendo Mafame, Ibidun C. Obagbuwa, Danielle Speek, Jeremia S. Sefadi, Willis Gwenzi, Nhamo Chaukura   +9 more
wiley   +1 more source

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

Materials 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, Zakarya Ahmed, Khaled Charradi, Boutheina Ben Fraj, Sami Boufi, Andreas Koschella, Thomas Heinze, Sherif M. A. S. Keshk, Ibtissem Ben Assaker   +8 more
doaj   +1 more source

Proton Selective Nanoporous Atomically Thin Graphene Membranes for Vanadium Redox Flow Batteries

Advanced Materials, Volume 38, Issue 5, 22 January 2026.
A scalable high‐performance proton‐exchange‐membrane architecture is demonstrated that integrates monolayer CVD graphene with Ar plasma‐engineered Angstrom‐scale proton‐selective pores, stacked to mitigate non‐selective defects, and interfaced with an ultrathin (≈300 nm) polybenzimidazole layer sandwiched between two Nafion 211 sheets.
Pavan Chaturvedi, Peifu Cheng, Saban M. Hus, Matthew Coupin, An‐Ping Li, Jamie Warner, Michael S.H. Boutilier, Piran R. Kidambi   +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

Materials 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, Mohamed A. Ben Moussa, Souhib Umer Ilyas, Rizwan Nasir, Dorra Ghorbel, Sherif M. A. S. Keshk   +5 more
doaj   +1 more source

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

, 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., Sachdev, M., Shashaani, M., Speek, H.   +3 more
core   +1 more source

Reassessing Electrolyte Design for Non‐Aqueous Magnesium Batteries: Atomistic Structures and Performance Optimization

Advanced Materials, Volume 38, Issue 5, 22 January 2026.
This review systematically examines recent advances in non‐aqueous electrolytes for rechargeable magnesium batteries, focusing on chlorine‐containing and chlorine‐free systems. It highlights the interdependent relationship between electrolyte compositions, atomistic structures, and electrochemical performance.
Hao Xu, Xiaoqian He, Yue Li, Quanquan Guo, Xinyu Sun, Xinlong Xie, Lingyue Liu, Richard M. Laine, Jianxin Zou, Xinliang Feng, Minghao Yu   +10 more
wiley   +1 more source

A Comparative Study of Nafion 212 and Sulfonated Poly(Ether Ether Ketone) Membranes with Different Degrees of Sulfonation on the Performance of Iron-Chromium Redox Flow Battery

Membranes, 2023
For an iron-chromium redox flow battery (ICRFB), sulfonated poly(ether ether ketone) (SPEEK) membranes with five various degrees of sulfonation (DSs) are studied.
Enrui Bai, Haotian Zhu, Chuanyu Sun, Guanchen Liu, Xiaoyin Xie, Chongyang Xu, Sheng Wu   +6 more
doaj   +1 more source

A Novel Vanadium–Titanium Redox Flow Battery with Enhanced Electrochemical Performance & Greener Alternative

ChemElectroChem, Volume 13, Issue 1, January 2026.
A novel vanadium–titanium redox flow battery is demonstrated using V5+/V4+ and Ti3+/Ti4+ electrolytes, delivering stable cycling (>150 cycles), high coulombic efficiency (>95%), and low‐cost operation. Ionic‐liquid‐based catholytes and SPEEK membranes further enhance sustainability while maintaining an appreciable electrochemical performance.
Kalyan Sundar Krishna Chivukula, Yansong Zhao   +1 more
wiley   +1 more source

Understanding of Nanophase Separation and Hydrophilic Morphology in Nafion and SPEEK Membranes: A Combined Experimental and Theoretical Studies

Nanomaterials, 2019
The understanding of the relationship between the chemical structure and the hydrophilic structure is crucial for the designing of high-performance PEMs.
Rujie Wang, Shanshan Liu, Lidong Wang, Ming Li, Chong Gao   +4 more
doaj   +1 more source