Results 31 to 40 of about 39,366 (304)

Gas diffusion Electrode.

open access: yesJournal of the Surface Finishing Society of Japan, 1991
Disclosed herein is a gas diffusion electrode comprising a reaction layer and a gas diffusion layer attached to each other characterized in that a plurality of apertures or a concave convex surface is provided on or through the electrode to facilitate the flowing of an electrolyte.
openaire   +3 more sources

Impact of Microporous Layer Roughness on Gas-Diffusion-Electrode-Based Polymer Electrolyte Membrane Fuel Cell Performance

open access: yes, 2019
This study explores the role of the gas diffusion media microporous layer (MPL) surface structure on the electrochemical properties of gas-diffusion-electrode (GDE)-based membrane electrode assemblies (MEAs).
Samantha Medina (7847714)   +11 more
core   +1 more source

A gas-diffusion cathode coated with oxide-catalyst for polymer electrolyte fuel cells using neither platinum catalyst nor carbon catalyst-support

open access: yes, 2013
To overcome the fundamental disadvantages of conventional cathodes for polymer electrolyte fuel cells (PEFCs), such as dissolution and migration of platinum-based catalysts and consumption of the carbon catalyst-support, a substantially novel gas ...
Wataru Sugimoto   +11 more
core   +1 more source

Amperometric biosensor for formic acid in air [PDF]

open access: yes, 2000
The possibility of developing a simple, inexpensive and specific personal passive ”real-time” air sampler based on biosensor technology was investigated. Formic acid was used as a model substance.
Turner, Anthony P. F.   +14 more
core   +1 more source

Electrokinetic and in situ spectroscopic investigations of CO electrochemical reduction on copper

open access: yesNature Communications, 2021
Electrokinetic results are key to understanding the mechanisms in electrochemical CO reduction reaction. Here, the authors determine mass transport free kinetics using a gas-diffusion electrode and identified dependence of copper surface speciation on ...
Jing Li   +6 more
doaj   +1 more source

Exploration of operating conditions on oxygen mass transport resistance and performance of PEM fuel cells: Effects of inlet gas humidification

open access: yesElectrochemical Science Advances, 2023
This work presents comprehensive studies of inlet gas humidification on O2 mass transport and proton exchange membrane fuel cell performance to obtain a better understanding of transport processes at a cathode gas diffusion electrode.
Tatyana V. Reshetenko, Bonnie L. Ben
doaj   +1 more source

Hydrophobic 1-octadecanethiol functionalized copper catalyst promotes robust high-current CO2 gas-diffusion electrolysis

open access: yes, 2021
The electrocatalytic reduction of CO2 presents a promising strategy in addressing environmental and energy crisis. Significant progress has been achieved via CO2 gas diffusion electrolysis, to react at high selectivity and high rate.
Liu, Y   +7 more
core   +1 more source

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

open access: yesAdvanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

Porous Bilayer Electrode‐Guided Gas Diffusion for Enhanced CO2 Electrochemical Reduction

open access: yesAdvanced Energy & Sustainability Research, 2021
Comparing with the massive efforts in developing innovative catalyst materials system and technologies, structural design of cells has attracted less attention on the road toward high‐performance electrochemical CO2 reduction reaction (eCO2RR). Herein, a
Yucheng Wang   +9 more
doaj   +1 more source

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