Results 21 to 30 of about 30,361 (249)

Application of commercial poly(3,4-ethylenedioxy-thiophene):poly(styrene sulfonate) for electrochemical sensing of dopamine [PDF]

open access: yesJournal of the Serbian Chemical Society, 2013
In this paper, a simple and stable composite electrode based on intrinsically conducting polymer poly(3,4-ethylenedioxythiophene):poly(sty-renesulfonate) (PEDOT:PSS) and ion-exchange polymer Nafion, was successfully fabricated by drop-coating the ...
Yao Yuanyuan   +4 more
doaj   +1 more source

The Effect of Direct Electron Beam Patterning on the Water Uptake and Ionic Conductivity of Nafion Thin Films

open access: yesAdvanced Electronic Materials, 2023
The effect of electron‐beam patterning on the water uptake and ionic conductivity of Nafion films using a combination of X‐ray photoelectron spectroscopy, quartz crystal microbalance studies, neutron reflectometry, and impedance spectroscopy is reported.
Ky V. Nguyen   +14 more
doaj   +1 more source

Analysis of some B-adrenergic agonists in biological matrices after evaluation of various extraction methodologies and determination procedures [PDF]

open access: yes, 1994
Biological sample clean-up procedures were evaluated for the extraction of a range of /3-agonists. Once extracted the compounds were determined by immunoassay, electrochemical techniques and supercritical fluid chromatography (SFC).
Boyd, Damien Thomas
core   +1 more source

Nafion doped polyaniline/graphene oxide composites as electrode materials for high performance flexible supercapacitors based on Nafion membrane

open access: yesMaterials & Design, 2023
Nafion membrane possesses good ionic conductivity and excellent mechanical stability, which can be used as electrolyte and separator of flexible supercapacitor.
Xudong Fu   +5 more
doaj   +1 more source

Novel multilayer Nafion/SPI/Nafion composite membrane for PEMFCs

open access: yes, 2007
A novel multilayer membrane for the proton exchange membrane fuel cell (PEMFC) was developed. Nation was dispersed uniformly onto both sides of the sulfonated polyimide (SPI) membrane.
Zhang, H. M.   +7 more
core   +1 more source

Nafion-Protected Sputtered-Bismuth Screen-Printed Electrode for On-site Voltammetric Measurements of Cd(II) and Pb(II) in Natural Water Samples

open access: yesSensors, 2019
In this work, we explore the protection with Nafion of commercial sputtered-bismuth screen-printed electrodes (BiSPSPEs), to improve its ability for on-site determination of Cd(II) and Pb(II) ions in ambient water samples.
Samuel Frutos-Puerto   +2 more
doaj   +1 more source

Circadian-Inspired Hydrogel Moisture Electricity Generation. [PDF]

open access: yesAdv Sci (Weinh)
A circadian‐inspired hydrogel moisture‐electric generator enables sustainable electricity generation by autonomously current direction switching between daytime and nighttime. This reversible output is accompanied by inversion of the internal water gradient, which effectively reduce hydrogel fatigue and offers a new strategy for harvesting diurnal ...
Li Z   +7 more
europepmc   +2 more sources

Nafion-Based Low-Hydration Polyelectrolyte Multilayer Membranes for Enhanced Water Purification

open access: yes, 2019
The increase of micropollutant concentration in both surface and groundwater is an emerging concern for the environment and human health. Most of such small organic molecules (medicines, hormones, and plasticizers) enter the environment via our ...
Esra te Brinke (7339286)   +9 more
core   +1 more source

Sensitive Differential Pulse Stripping Voltammetry of Caffeine in Medicines and Cola Using a Sensor Based on Multi-Walled Carbon Nanotubes and Nafion

open access: yesInternational Journal of Electrochemical Science, 2011
A sensitive electrochemical sensor for the determination of caffeine (3,7 – dihydro - 1, 3, 7 – trimethyl - 1H – purine - 2, 6 – dione) based on a multi-walled carbon nanotube and a Nafion-modified glassy carbon electrode (MWCNT-Nafion/GCE) using ...
J. Zhang   +5 more
doaj   +1 more source

Experimental optimization of the Nafion® ionomer content in the catalyst layer for polymer electrolyte membrane water electrolysis at high temperatures

open access: yesFrontiers in Energy Research, 2023
The polymer electrolyte membrane water electrolysis (PEMWE) performance is closely related to the Nafion® ionomer content in catalyst layers (CLs). This study experimentally investigates the impact of anode and cathode Nafion® ionomer contents on the ...
Hua Li   +7 more
doaj   +1 more source

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