Results 71 to 80 of about 4,874 (220)

Preliminary Study of the Use of Sulphonated Polyether Ether Ketone (SPEEK) as Proton Exchange Membrane for Microbial Fuel Cell (MFC) [PDF]

, 2018
Sulfonated polyether ether ketone (SPEEK) was utilized as a proton exchange membrane (PEM) in Microbial Fuel Cell (MFC). The SPEEK performance in producing electricity had been observed in MFC using wastewater and glucose as substrates.
Djaenudin, D. (Djaenudin), Permana, D. (Dani), Putra, H. E. (Herlian)   +2 more
core   +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

Group Vibrational Mode Assignments as a Broadly Applicable Tool for Characterizing Ionomer Membrane Structure as a Function of Degree of Hydration [PDF]

, 2020
Infrared spectra of Nafion, Aquivion, and the 3M membrane were acquired during total dehydration of fully hydrated samples. Fully hydrated exchange sites are in a sulfonate form with a C₃V local symmetry. The mechanical coupling of the exchange site to a
Abu-Hakmeh, Khaldoon, Cruse, Ryan, Dimakis, Nicholas, Doan, Jonathan, Gao, Shuitao, Goddard, William A., III, Gonzalez, Luis, Ingargiola, Matthew, Jang, Seung Soon, Loupe, Neili, Mathiowetz, Kayla, Salas, Isaiah, Schide, Anne, Smotkin, Eugene S.   +13 more
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Contribution of nanoclays to the barrier properties of a model proton exchange membrane for fuel cell application [PDF]

, 2005
peer reviewedaudience: researcherDirect methanol fuel cells (DMFCs) that use a proton exchange membrane (PEM) as electrolyte, is a promising alternative source of energy for the future. However, methanol crossover from the anodic side to the cathodic one
Allen, Simon, Gerber, Livia, Hoppitt, William, Krützen, Michael, Rankin, Robert, Wild, Sonja   +5 more
core   +5 more sources

Smart Catheters for Diagnosis, Monitoring, and Therapy

Advanced Healthcare Materials, Volume 15, Issue 13, 3 April 2026.
This study presents a comprehensive review of smart catheters, an emerging class of medical devices that integrate embedded sensors, robotics, and communication systems, offering increased functionality and complexity to enable real‐time health monitoring, diagnostics, and treatment. Abstract This review explores smart catheters as an emerging class of
Azra Yaprak Tarman, Samiha Ahmed, Majed Othman Althumayri, Megan Guy, Darlenne Chavez Lugo, Frances S. Ligler, George T. Ligler, Rahmi Oklu, Hiroshi Kawahira, Michael J. McShane, Jun Kameoka, Jonathan Bova, Hatice Ceylan Koydemir   +12 more
wiley   +1 more source

Direct spun aligned carbon nanotube web-reinforced proton exchange membranes for fuel cells [PDF]

, 2014
A composite membrane prepared by electrospinning SPEEK and direct spinning of CNTs is more robust than SPEEK alone and outperforms SPEEK and Nafion 212 membranes.
Caruso, Rachel A., Choi, Jonghyun, Hawkins, Stephen C., Huynh, Chi P., Jeon, Yukwon, Kyratzis, Ilias L., Lee, Chanmin, Park, Jeongho, Shul, Yong-Gun, Truong, Yen B.   +9 more
core   +1 more source

Engineered Biopolymer Architectures for Selective Metal Ions Extraction

Advanced Sustainable Systems, Volume 10, Issue 4, April 2026.
This review establishes a mechanism‐oriented framework that connects biopolymer chemistry, structural engineering, ligand design, and hydrometallurgical process variables for selective metal‐ion extraction. It analyzes how functional groups, hierarchical architectures, and solution speciation govern adsorption capacity and selectivity in acidic ...
Amir Nobahar, Helena Passos, Nicolas Schaeffer, Filipe H. B. Sosa, João A. P. Coutinho   +4 more
wiley   +1 more source

High durable SPEEK/TiO2 nanopaper composite membrane for vanadium redox flow battery

Journal of Saudi Chemical Society
Sulfonated poly (ether ether ketone) (SPEEK) ion exchange membranes for VRFB are promising alternatives to Nafion, but require improved mechanical and chemical stability for long-term operation. Here, we have fabricated composite membranes using SPEEK as
Song Il Han, Song Hyok Jon, Un Hyang Kim, Gang Hyok Kim, Sang Mo Jon   +4 more
doaj   +1 more source

Polymer material for electrolytic membranes in fuel cells [PDF]

, 1998
A polymer, PEEK or SPES is processed to use it as a proton conducting membrane for a fuel cell.
Graham, Eva, Halpert, Gerald, Narayanan, Sekharipuram R., Yavrouian, Andre, Yen, Shaio-Ping S.   +4 more
core   +1 more source

Obtenção e caracterização de membranas híbridas Speek/silano para utilização em células a Combustível [PDF]

, 2005
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Físicas e Matemáticas. Curso de Química.A célula a combustível é um dispositivo que converte energia química proveniente da oxidação do combustível em energia elétrica gerando ...
CONCEIÇÃO, Thiago Ferreira da
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