Results 51 to 60 of about 6,237 (218)

High‐Energy‐Density Redox Flow Batteries: Mechanisms, Design Strategies, and Recent Progress

Chemistry – A European Journal, EarlyView.
ABSTRACT The inherent intermittency of energy sources such as solar and wind power hinders the transition to renewable energy, necessitating advanced energy storage solutions. Enhancing energy density is crucial for lowering system costs and enabling large‐scale deployment.
Xiaolian Zhao, Jiaxin Yu, Nannan Jia, Chuzhang Hong, Yue Luo, Wantong Jing, Zhiming Feng, Xinhua Liu, Rui Tan   +8 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

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

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

An international survey of the relatives and friends of electroconvulsive therapy recipients

Psychology and Psychotherapy: Theory, Research and Practice, EarlyView.
Abstract Objectives This study aimed to address the paucity of studies of the relatives and friends of electroconvulsive therapy (ECT) patients. Methods A total of 1144 people responded to an online survey. Results The respondents included 286 relatives and friends of ECT recipients, from 22 countries.
Christopher Harrop, Sue Cunliffe, Sarah Price Hancock, Lucy Johnstone, Lisa Morrison, John Read   +5 more
wiley   +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

Applications of Polymers in Zinc Anode Protection for Aqueous Zinc‐Ion Batteries

Battery Energy, Volume 5, Issue 3, May 2026.
Zinc anodes suffer from dendrite growth and side reactions, severely restricting aqueous zinc‐ion battery applications. Polymers with adjustable structures and functions are widely used to protect the zinc anode. This review outlines design principles, mechanisms, and optimization strategies for polymer‐based interfacial layers and electrolytes ...
Shuping Zhao, Jinping Wu, Peng Lin, Peng Liu, Kai Hu, Huibing He, Dongdong Li   +6 more
wiley   +1 more source

Membrane Engineering for Battery Systems: Bridging Design Principles and Frontier Applications

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 3, May 2026.
The review emphasizes membrane separators' role in battery performance and safety, covering redox flow, lithium‐ion, and solid‐state batteries. It reviews advances in membrane materials (e.g., polymer electrolytes, hybrid composites) and ion transport mechanisms, while addressing challenges like dendrite growth and crossover losses.
Xiaoqun Zhou, Justice Delali Akoto, Rui Tan, Jun Ma   +3 more
wiley   +1 more source

Development of Cost-Effective sPEEK/Al2O3 Composite Membranes with Enhanced Proton Conductivity and Durability for PEMFCs [PDF]

E3S Web of Conferences
Polymer electrolyte membrane (PEM)-based fuel cells are emerging fields with high efficiency, low pollutant emissions, and low material consumption. However, conventional membranes have poor thermal resistance and are expensive.
Hakim Muhammad Fahmi, Hidayati Nur, Hasannah Cintiya Septa, Widianto Eri, Fauji Najmudin   +4 more
doaj   +1 more source