Results 71 to 80 of about 6,144 (201)

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

open access: yes, 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)   +2 more
core   +1 more source

SPEEK: effect evaluation of a Ghanaian school-based and peer-led sexual education programme [PDF]

open access: yesHealth Education Research, 2018
In sub-Saharan Africa, theory and evidenced-based interventions that are systematically designed and using sound evaluation methods to report on effectiveness are limited. A sex education programme called SPEEK was developed, implemented and evaluated in Ghana using the Intervention Mapping approach.
John K Krugu   +3 more
openaire   +2 more sources

Preparation and Characterization of UV Irradiated SPEEK/Chitosan Membranes

open access: yesInternational Journal of Electrochemical Science, 2012
Cross-linked composite membranes of sulfonated poly(ether ether ketone) (SPEEK) with a chitosan content up to 50 wt%, were prepared by solution cast technique and ultraviolet (UV) curing.
N.A. Aini   +5 more
doaj   +1 more source

Effects of tin phosphate nanosheet addition on proton-conducting properties of sulfonated poly(ether sulfone) membranes [PDF]

open access: yes, 2012
Organic/inorganic composite membranes were prepared by dispersing nanosheets of layered tin phosphate hydrate [Sn(HPO4)2·nH2O (SnP)] in sulfonated poly(ether sulfone) (SPES) at SnP contents of 0–40 vol.%.
LICOCCIA, S   +4 more
core   +1 more source

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

open access: yesJournal 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   +4 more
doaj   +1 more source

Preparation of high performance SPEEK/Cloisite 15A nanocomposite membrane via advanced membrane formulation method [PDF]

open access: yes, 2014
Sulfonated poly (ether ether ketone) (SPEEK)/Cloisite 15A® nanocomposite membranes were prepared via solution intercalation method. For better dispersion of nanoclay in the polymer matrix, the solution intercalation method was modified and a ...
Ismail, Ahmad F.   +6 more
core   +1 more source

Zeolite‐Based Advanced Battery Separators: Synergistic Innovations in Structure Performance Application

open access: yesCarbon Neutralization, Volume 4, Issue 6, November 2025.
With the rapid development of renewable energy, efficient, safe, and long‐life energy storage technologies have become key to promoting the energy transition. As a core energy storage device, battery performance optimization has received significant attention.
Teng Du   +10 more
wiley   +1 more source

Recent Developments in Materials Design for Advanced Supercapacitors

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 8, Issue 6, November 2025.
Recent advancements in supercapacitor materials are reviewed to realize high‐power energy storage applications. The developments in material design for improved performance of advanced supercapacitors can provide a promising route for energy storage solutions.
Abhisikta Bhaduri   +2 more
wiley   +1 more source

Preparation and properties of proton exchange membrane reinforced by metal-organic framework/ionic liquid

open access: yesCailiao gongcheng
To improve the proton conductivity of the sulfonated polyether ether ketone/ionic liquid (SPEEK/IL) membrane and reduce the loss rate of IL in the membrane, Cd@Co-MOF-74/Phosphate-4-phenylimidazole ionic liquid ([IM2][H2PO4])/SPEEK ternary composite ...
SUN Lijun   +3 more
doaj   +1 more source

Electrochemical Properties of Proton Exchange Membrane I: The Influence of Sulfonation Degree and Solvent

open access: yesInternational Journal of Electrochemical Science, 2016
The sulfonic acid groups in SPEEK proton exchange membranes are belonging to hydrophilic groups, which are generally affect the performance of the proton conductivity, methanol permeability and anti- swelling properties.
Fengying Yu, Jiajie Hu
doaj   +1 more source

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