نتایج جستجو برای: membrane electrode assembly

تعداد نتایج: 561410  

Journal: :The Annals of otology, rhinology, and laryngology 1989
B K Franz J A Kuzma E Lehnhardt G M Clark J F Patrick R Laszig

The Melbourne/Cochlear multiple-electrode extracochlear implant is designed for deaf patients who are unsuited to multiple-electrode intracochlear implantation. The implant consists of a receiver-stimulator package connected via a lead wire assembly to six individual stimulating electrodes. There is a choice of two alternative surgical procedures, both of which are via a combined middle ear app...

Journal: :International Journal of Hydrogen Energy 2022

The hybrid sulfur (HyS) cycle offers an alternative route to hydrogen and sulfuric acid production using the SO2-depolarized electrolysis (SDE) cell. This work reports most efficient SDE operation date at high concentrations (∼60 wt%) achieved through optimization of operating conditions cell components. We observed that open porosity in porous transport media (PTM) plays a significant role per...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1386

چکیده ندارد.

Journal: :journal of the iranian chemical research 0
ali benvidi department of chemistry, faculty of science, yazd university, yazd, iran mehdi elahizadeh department of chemistry, faculty of science, yazd university, yazd, iran hamid reza zare, department of chemistry, faculty of science, yazd university, yazd, iran rasoul vafazadeh department of chemistry, faculty of science, yazd university, yazd, iran

an iodide ion-selective pvc membrane sensor based on copper (π)-bis-nphenilsalicyldenaminatocomplex as a novel sensing material is successfully developed. theelectrode showed a good selectivity for iodide ion with respect to common inorganic anions. thesensor exhibited a good linear response with slope of _58.6 ± 0.4 mv per decade over theconcentration range of 5.0 × 10-6 to 1.0 × 10-1 mol l-1,...

2010
R. A. Silva T. I. Paiva C. M. Rangel

The mechanisms of fuel cell degradation are not well understood. Even though the numbers of installed units around the world continue to increase and dominate the pre-markets, the present lifetime requirements for fuel cells cannot be guarantee, creating the need for a more comprehensive knowledge of material’s ageing mechanism. In this work, failure modes and mechanism of the membrane-electrod...

2015
Antonino S. Aricò David Sebastian Michael Schuster Bernd Bauer Claudia D’Urso Francesco Lufrano Vincenzo Baglio Bruno Scrosati

Sulfonic acid-functionalized polymer electrolyte membranes alternative to Nafion(®) were developed. These were hydrocarbon systems, such as blend sulfonated polyetheretherketone (s-PEEK), new generation perfluorosulfonic acid (PFSA) systems, and composite zirconium phosphate-PFSA polymers. The membranes varied in terms of composition, equivalent weight, thickness, and filler and were investigat...

We report a Pd-Co (3:1)/graphene oxide (Pd3Co /GO) catalyst through a one-step strategy. GO is synthesized from graphite electrodes using ionic liquid-assisted electrochemical exfoliation. Controllable GO-supported Pd3Co electrocatalystis then was reduced by ethylene glycol as a stabilizing agent to prepare highly dispersed PdCo nanoparticles on carbon graphene oxide to be used as oxygen reduct...

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