Results 31 to 40 of about 1,042 (180)

Graphene Materials for Sustainable Energy Applications: A Contemporary Perspective

Carbon Energy, EarlyView.
ABSTRACT Graphene has garnered significant attention as a promising material with great potential for contributing to sustainable energy initiatives, such as RE100 (100% renewable energy initiative) and CF100 (100% carbon‐free initiative). This review aims to explore the potential of graphene for advancing renewable energy applications by highlighting
Niraj Kumar, Seul‐Yi Lee, Roop L. Mahajan, Soo‐Jin Park   +3 more
wiley   +1 more source

Ordered Ionic‐Liquid Channels Enable Fast Anhydrous Proton Conduction at up to 240°C for Fuel Cells

Angewandte Chemie, Volume 138, Issue 31, 27 July 2026.
Infiltration of ionic liquids into a composite scaffold comprised of graphene and boron nitride nanosheets functionalised with positively charged polyethyleneimine produces robust proton conducting membranes for the intermediate temperature electrochemical devices.
Mazin Al‐Alawi, Kaiqiang He, Mattia Belotti, Fanmengjing Wang, Jiffin Oommen, Douglas R. MacFarlane, Hoang‐Long Du, Alexandr N. Simonov, Huanting Wang   +8 more
wiley   +2 more sources

Studies on the SPEEK membrane with low degree of sulfonation as a stable proton exchange membrane for fuel cell applications [PDF]

Hydrogen, Fuel Cell & Energy Storage, 2017
Sulfonated poly (ether ether ketone) (SPEEK) with a low degree of sulfonation (DS = 40%) was prepared for proton exchange membrane fuel cells (PEMFC).
Mohammad Javad Parnian, Fatemeh Gashoul, Soosan Rowshanzamir   +2 more
doaj   +1 more source

Enhancement of Chemical Stability of Sulfonated Polyvinylidene Fluoride Proton‐Conducting Membranes by Ceria Incorporation

Journal of Polymer Science, EarlyView.
The chemical stability of SPVDF membranes was examined using Fenton's reagent test. It was found that the chemical stability of membranes was enhanced from around 80% to 96% by integration of ceria in the membranes. The ability of ceria to toggle between the two oxidation states was responsible for this enhancement.
Gagan Kumar Bhatt, Katawalamullage Kanishka Hansani De Silva, Rita Joshi, Masanori Hara, Masamichi Yoshimura   +4 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

Dynamic investigation of hydrocarbon proton exchange membrane Fuel Cell [PDF]

Hydrogen, Fuel Cell & Energy Storage, 2018
Sulfonated polyether ether ketone (SPEEK) is categorized in a nonfluorinated aromatic hydrocarbon proton exchange membrane (PEM) group and considered as a suitable substitute for common per-fluorinated membranes, such as Nafion, due to wider operating ...
Milad Shakouri Kalfati, Aida Karimi, Soosan Rowshanzamir   +2 more
doaj   +1 more source

Vertebral Endplate Concavity in Lateral Lumbar Interbody Fusion: Tapered 3D-Printed Porous Titanium Cage versus Squared PEEK Cage

Medicina, 2023
Background and Objectives: To prevent postoperative problems in extreme lateral interbody fusion (XLIF), it is critical that the vertebral endplate not be injured. Unintentional endplate injuries may depend on the cage.
Naoki Segi, Hiroaki Nakashima, Ryuichi Shinjo, Yujiro Kagami, Masaaki Machino, Sadayuki Ito, Jun Ouchida, Kazuaki Morishita, Ryotaro Oishi, Ippei Yamauchi, Shiro Imagama   +10 more
doaj   +1 more source

Scaling‐Up Vanadium Redox Flow Batteries: From Lab‐Scale Flow Cells to Application Stacks

Advanced Chemical Engineering, Volume 1, Issue 2, December 2026.
The transition of vanadium redox flow batteries (VRFBs) from laboratory cells to practical stacks encounters integrated limitations in key components. This review emphasizes component‐level optimization and engineering considerations for electrodes, electrolytes, membranes, and flow fields. Critical trade‐offs among different metrics across large‐scale
Xin Long, Xiaoyu Huo, Yuran Bai, Enkang Fu, Xusong Gong, Zhongchao Tan, Liang An   +6 more
wiley   +1 more source

Pengaruh Metode Sulfonasi dan Penambahan Pengisi pada Membran Direct Metanol Fuel Cell

JRST: Jurnal Riset Sains dan Teknologi, 2018
Penggunaan polieter-eter keton (PEEK) sebagai membran pengganti nafion pada aplikasi direct methanol fuel cell (DMFC)  menjadi penelitian yang terus dikembangkan, Penyempurnaan  PEEK menuju karakteristik nafion juga terus dilakukan dengan berbagai metode,
Muhammad Fahmi Hakim, Tutuk Djoko Kusworo   +1 more
doaj   +1 more source

Simple, inexpensive and RNase-free purification of plasmid DNA by fractional precipitation with isopropanol

BioTechniques, 2021
We present a modified alkaline lysis method for purification of plasmid DNA (pDNA) from bacterial extract using fractional precipitation with isopropanol (FPI).
Viiu Paalme, Mart Speek
doaj   +1 more source