Results 61 to 70 of about 2,662,978 (344)

A review of polymer electrolyte membrane fuel cells: Technology, applications,and needs on fundamental research

open access: yes, 2011
Polymer electrolyte membrane (PEM) fuel cells, which convert the chemical energy stored in hydrogen fuel directly and efficiently to electrical energy with water as the only byproduct, have the potential to reduce our energy use, pollutant emissions, and
Yun Wang   +4 more
semanticscholar   +1 more source

Electrochemistry Study on PVC-LiClO4 Polymer Electrolyte Supported by Bengkulu Natural Bentonite for Lithium Battery

open access: yesAceh International Journal of Science and Technology, 2012
In this research bentonite was used as filler to produce polymer electrolyte (PVCLiClO4). Some weight variation of bentonite have been made by addition, such as 0% wt/wt; 5% wt/wt ; 10% wt/wt ; 15% wt/wt ; 20% wt/wt ; and 25% wt/wt of bentonite to the ...
Ghufira   +3 more
doaj   +3 more sources

Application of solid polymer electrolyte in lithium sulfur batteries

open access: yesJournal of Aeronautical Materials, 2019
Polymer electrolyte coated sulfur@carbon fiber composite solid electrode was prepared by the two methods of microscopic and macroscopic coating with polymer electrolyte in the cathode sheet of lithium sulfur battery.
WANG Chen   +3 more
doaj   +1 more source

Photoelectrochemical electrodes [PDF]

open access: yes, 1983
The surface of a moderate band gap semiconductor such as p-type molybdenum sulfide is modified to contain an adherent film of charge mediating ionene polymer containing an electroactive unit such as bipyridimium.
Rembaum, A., Williams, R. M.
core   +1 more source

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

open access: yesAdvanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund   +6 more
wiley   +1 more source

Highly‐Cyclable Room‐Temperature Phosphorene Polymer Electrolyte Composites for Li Metal Batteries

open access: yesAdvanced Functional Materials, 2020
Despite significant interest toward solid‐state electrolytes owing to their superior safety in comparison to liquid‐based electrolytes, sluggish ion diffusion and high interfacial resistance limit their application in durable and high‐power density ...
Ramin Rojaee   +15 more
semanticscholar   +1 more source

Hydrogel-Polymer Electrolytes Based on Polyvinyl Alcohol and Hydroxyethylcellulose for Supercapacitor Applications

open access: yesInternational Journal of Electrochemical Science, 2014
A transparent polymer-hydrogel electrolyte was successfully synthesized on the basis of polyvinyl alcohol (PVA). Sulfuric acid (H2SO4) as a dopant electrolyte was used to dissolve PVA.
Memoria Rosi   +3 more
doaj   +1 more source

Transport in polymer-gel composites: Theoretical methodology and response to an electric field

open access: yes, 2006
A theoretical model of electromigrative, diffusive and convectivetransport polymer-gel composites is presented. Bulk properties are derived from the standard electrokinetic model with an impenetrable charged sphere embedded in an electrolyte-saturated ...
Hill, Reghan J.
core   +1 more source

Perspective: Organic electronic materials and devices for neuromorphic engineering [PDF]

open access: yes, 2018
Neuromorphic computing and engineering has been the focus of intense research efforts that have been intensified recently by the mutation of Information and Communication Technologies (ICT). In fact, new computing solutions and new hardware platforms are
Alibart, Fabien   +2 more
core   +2 more sources

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu   +5 more
wiley   +1 more source

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