Results 21 to 30 of about 16,378 (307)
A methanol concentration sensor based on twin Nafion membrane electrode assemblies(MEAs)wasconstructed with anodes face to face eliminating the interference ofoxygen in environment. The signalof the sensor was obtained by electro-oxidation of themethanol
Wei Sun +4 more
doaj +2 more sources
Novel Bilayer Composite Membrane for Passive Direct Methanol Fuel Cells with Pure Methanol
The bilayer composite membrane composed of the sulfonated graphene oxide (SGO)/Nafion and sulfonated activated carbon (SAC)/Nafion composite membrane is designed and prepared by repeatedly bar-coating.
Li-Duan Tsai +6 more
doaj +1 more source
Unlike other fuel cell types, the direct methanol fuel cell does not require a separate hydrogen generation system and therefore has greater commercial potential, particularly for powering portable appliances. However, the limiting factor for the cost-effective performance of such systems is the catalytic activity of the electrodes, in particular the ...
D. S. Cameron +3 more
openaire +1 more source
Perspective Chapter: Methanol as a Fuel for Direct Methanol Fuel Cells (DMFCs) – Principles and Performance [PDF]
Methanol, also known as methyl alcohol (CH3OH), is a colorless, flammable, and volatile liquid produced commercially through the catalytic reaction of carbon monoxide and hydrogen or by gasification.
Veronica Testa, Marcello Romagnoli
core +1 more source
Fast Measurement of Methanol Concentration in Ionic Liquids by Potential Step Method
The development of direct methanol fuel cells required the attention to the electrolyte. A good electrolyte should not only be ionic conductive but also be crossover resistant. Ionic liquids could be a promising electrolyte for fuel cells.
Michael L. Hainstock, Yijun Tang
doaj +1 more source
Fuel Cells: A Real Option for Unmanned Aerial Vehicles Propulsion
The possibility of implementing fuel cell technology in Unmanned Aerial Vehicle (UAV) propulsion systems is considered. Potential advantages of the Proton Exchange Membrane or Polymer Electrolyte Membrane (PEMFC) and Direct Methanol Fuel Cells (DMFC ...
Óscar González-Espasandín +2 more
doaj +1 more source
Direct methanol fuel cells (DMFCs) are clean energy sources that have many applications due to the high energy density of methanol as a fuel. However, this type of fuel cells (FCs) has limitations that are preventing it from being commercialized.
Islam M. Al-Akraa +2 more
doaj +1 more source
Organic-Inorganic Novel Green Cation Exchange Membranes for Direct Methanol Fuel Cells
Commercializing direct methanol fuel cells (DMFC) demands cost-effective cation exchange membranes. Herein, a polymeric blend is prepared from low-cost and eco-friendly polymers (i.e., iota carrageenan (IC) and polyvinyl alcohol (PVA)).
Marwa H. Gouda +4 more
doaj +1 more source
The direct methanol fuel cell (DMFC) has been considered as the ideal fuel cell system since it produces electric power by the direct conversion of the methanol fuel at the fuel cell anode. This is more attractive than the conventional hydrogen fuelled cells, particularly for transportation applications, which rely on bulky and often unresponsive ...
M. P. Hogarth, G. A. Hards
openaire +1 more source
Vapor-feed direct methanol fuel cells using pure methanol
This work optimizes the performance of the direct methanol fuel cell (DMFC) to increase its efficiency and strengthen its validity in portable power generation.
Ryan Spragg, Xianglin Li
doaj +1 more source

