Results 11 to 20 of about 53,287 (216)

Experimental Study on Carbon Dioxide Separation by Gas Diffusion

open access: yesJournal of Isotopes, 2021
With the promotion and popularization of carbon-13 breath detection test, the market demand for carbon-13 isotope products is on the rise. In order to explore the industrial separation method of carbon-13 isotope, a gas diffusion separation experimental ...
LI Junjie;PAN Jianxiong;ZHOU Mingsheng;JIANG Dongjun;SUN Wang
doaj   +1 more source

Numerical Investigation of the Effect of Gas Diffusion Layer with Semicircular Prominences on Polymer Exchange Membrane Fuel Cell Performance and Species Distribution [PDF]

open access: yesJournal of Renewable Energy and Environment, 2015
A three-dimensional computational fluid dynamics model of a proton exchange membrane fuel cell (PEMFC) with both gas distribution flow channels and Membrane Electrode Assembly (MEA) is developed.
Nima Ahmadi   +3 more
doaj   +1 more source

New approach by electrospray technique to prepare a gas diffusion layer for the proton exchange membrane fuel cell anode

open access: yesMaterials Today Advances, 2021
The performance of the electrospray technique was applied to obtain a gas diffusion layer (GDL) for a proton exchange membrane fuel cell. It was confirmed by confocal microscopy that polytetrafluorethylene (PTFE) was impregnated into the backbone ...
L.M.G. Silva   +6 more
doaj   +1 more source

Modification of gas diffusion layers properties to improve water management

open access: yesMaterials for Renewable and Sustainable Energy, 2017
In this paper we report an approach to improve water management of commercial GDLs by introducing hydrophobicity patterns. Specifically, line and grid patterns have been created in the MPL side by laser radiation.
Martin Tomas   +4 more
doaj   +1 more source

Different Mechanism Effect between Gas-Solid and Liquid-Solid Interface on the Three-Phase Coexistence Hydrate System Dissociation in Seawater: A Molecular Dynamics Simulation Study

open access: yesEnergies, 2017
Almost 98% of methane hydrate is stored in the seawater environment, the study of microscopic mechanism for methane hydrate dissociation on the sea floor is of great significance to the development of hydrate production, involving a three-phase ...
Zhixue Sun   +8 more
doaj   +1 more source

Assessing Vadose Zone Biodegradation by a Multicomponent Gas Transport Model

open access: yesVadose Zone Journal, 2014
This study calibrated a gas transport model that uses multicomponent approaches, i.e., the dusty gas model (DGM) and Stefan–Maxwell (SM) equations, to soil gas concentration depth profiles to determine aerobic biodegradation rates of hydrocarbons in ...
Chiu-Shia Fen
doaj   +1 more source

Single walled carbon nanotube in the reaction layer of gas diffusion electrode for oxygen reduction reaction [PDF]

open access: yesHydrogen, Fuel Cell & Energy Storage, 2014
In this paper, the effect of surface area of reaction layers in gas diffusion electrodes on oxygen reduction reaction was investigated. For this purpose, various amounts (0.1, 0.2, 0.3, 0.4, 0.5, 1, 1.5 and zero %wt of total loading of reaction layer) of
Mehdi Kheirmand   +3 more
doaj   +1 more source

Characterisation of Novel and High Performing Double-Sided Microporous-Layers-Coated Gas Diffusion Layers for Polymer Electrolyte Membrane Fuel Cells

open access: yesEnergies, 2023
This study aims to experimentally evaluate the impact of a double-sided microporous layer coating on gas diffusion layers in terms of their key properties and fuel cell performance, in comparison to conventional single-sided coated gas diffusion layers ...
Fernando Ruscillo   +6 more
doaj   +1 more source

Numerical study on the performance prediction of a proton exchange membrane (PEM) fuel cell [PDF]

open access: yesHydrogen, Fuel Cell & Energy Storage, 2017
An electrochemical analysis on a single channel PEM fuel cell was carried out by Computational Fuel Cell Dynamics (CFCD). The objective was to assess the latest developments regarding the effects of change in the current collector materials, porosity of ...
Puriya Mohamad Gholy Nejad   +3 more
doaj   +1 more source

Study on the micro mechanism of shale self-sealing and shale gas preservation

open access: yesShiyou shiyan dizhi, 2023
In order to accelerate the exploration and development of shale gas, this paper elaborates on the micro mechanism of shale gas preservation based on shale self-sealing.
Xusheng GUO   +6 more
doaj   +1 more source

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