نتایج جستجو برای: gas diffusion electrode

تعداد نتایج: 460615  

Journal: :Small 2022

Wetting In article number 2204012, Matthias Wessling and co-workers develop a microfluidic pillar-based model of gas diffusion electrode use it to track wetting phenomena in operando using fluorescence microscopy. Effects such as electrowetting hierarchical pores are elucidated, enabling the direct study mapping reactions porous electrodes.

Journal: :Journal of The Electrochemical Society 2021

Electrochemical atomic force microscopy (EC-AFM) enables measurement of electrode topography and mechanical properties during electrochemical reactions. However, for aqueous-based reactions that make gas products, such as CO 2 reduction water splitting into CO/H , current densities below 1 mA cm −2 have been necessary to prevent formation bubbles at the electrode; can stick AFM probe further im...

Journal: :journal of petroleum science and technology 2013
mostafa dehghani mobarake leila samiee ramin karami

in the present work, the modified nickel electrode was electrochemically fabricated and tested for the electro-oxidation of paracetamol in alkaline media. the methods of cyclic voltammetry (cv), chronoamperometry (ca), and impedance spectroscopy (eis) were used to determine kinetic parameters such as transfer coefficient (α), the catalytic reaction rate constants (k), and the diffusion coeffici...

Journal: :iranian journal of hydrogen & fuel cell 2014
masoumeh javaheri

in this work, electrocatalyst with core-shell structure (pd as core and pt as shell on vulcanxc-72r) was synthesis. not only this structure can reduce the amount of platinum but it also can increase the gas diffusion electrode (gde) performance in cathode reaction (oxygen reduction reaction or orr) of polymer electrolyte membrane fuel cell (pemfc). to this meaning, one series of electrocatalyst...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1390

a novel silver (ag) nanocomposite electrode was proposed that fabricated from metal nanostructures and ionic liquids. the combined application of unique properties of nanomaterials and ionic liquids in the design of this ag nanocomposite results in electrodes with interesting advantages compared to the conventional metal disk electrode. in the first part of this thesis, the elecrocatalytic eff...

Leila Samiee Mostafa Dehghani Mobarake Ramin Karami

In the present work, the modified nickel electrode was electrochemically fabricated and tested for the electro-oxidation of paracetamol in alkaline media. The methods of cyclic voltammetry (CV), chronoamperometry (CA), and impedance spectroscopy (EIS) were used to determine kinetic parameters such as transfer coefficient (α), the catalytic reaction rate constants (k), and the diffusion coeffici...

Journal: :Physical chemistry chemical physics : PCCP 2017
Simon Loftager Juan María García-Lastra Tejs Vegge

Lithium iron borate (LiFeBO3) is a promising cathode material due to its high theoretical specific capacity, inexpensive components and small volume change during operation. Yet, challenges related to severe air- and moisture-induced degradation have prompted the utilization of a protective coating on the electrode which also improves the electronic conductivity. However, not much is known abou...

Journal: :Sustainable Energy and Fuels 2023

Manganese carbonyl complexes have been studied extensively in solution as low cost, selective electrocatalysts with a overpotential for CO2 reduction but experiments are typically at current densities. In...

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