Results 11 to 20 of about 11,572 (205)

A Trilaminar-Catalytic Layered MEA Structure for a Passive Micro-Direct Methanol Fuel Cell

Micromachines, 2021
A membrane electrode assembly (MEA) with a novel trilaminar-catalytic layered structure was designed and fabricated for a micro-direct methanol fuel cell (μ-DMFC). The trilaminar-catalytic layer comprises three porous layers. The medial layer has a lower
Huichao Deng, Jiaxu Zhou, Yufeng Zhang
doaj   +1 more source

Electro-Osmotic Flow of Water–Methanol Mixtures Through Nafion Membranes Revisited: Composition and Temperature Dependence

Frontiers in Energy Research, 2022
The electro-osmotic drag coefficient of water and methanol mixtures through Nafion 117 membranes was measured as a function of the composition at several temperatures between 25 and 60°C using a two-compartment capillary cell with Ag/AgCl electrodes. The
Horacio R. Corti, Liliana Trevani
doaj   +1 more source

Suppressing Methanol Crossover with Nanometer-Sized Pt3Sn Particles Self-Assembled on a Nafion Membrane Surface

International Journal of Electrochemical Science, 2013
In this paper, 5 and 10 poly(allylamine hydrochloride) (PAH)/poly(styrene sulfonic acid sodium salt) (PSS) bi-layers with dispersed Pt3Sn alloy nano-particles are self-assembled onto both sides of the Nafion-117 membrane to suppress methanol crossover ...
Chien-Heng Lin, Chieh-Hao Wan, Weite Wu
doaj   +1 more source

Investigation of Methanol Crossover and Water Flux in an Air-Breathing Direct Methanol Fuel Cell

International Journal of Electrochemical Science, 2015
An air-breathing direct methanol fuel cell (DMFC) is constructed to investigate methanol crossover and water flux by altering flow rate and concentration of methanol solution.
Qi Wang, Guoxiong Wang, Xing Lu, Chunhuan Chen, Zhiqiang Li, Gongquan Sun   +5 more
doaj   +1 more source

Faradaic Efficiencies for Methanol Oxidation in Proton Exchange Membrane Electrolysis and Fuel Cells with Various Anode Catalysts

International Journal of Electrochemical Science, 2019
The energy efficiency of a direct methanol fuel cell (DMFC) is dependent on the cell voltage, crossover of oxygen and/or methanol through the polymer electrolyte membrane, and stoichiometry of the methanol oxidation reaction (i.e., the average number of ...
Rakan M. Altarawneh
doaj   +1 more source

Effects of Celecoxib and Etoricoxib on the Pharmacokinetics and Pharmacological Effects of Orally Administered Tramadol: A Randomised Controlled Trial. [PDF]

Basic Clin Pharmacol Toxicol
ABSTRACT Tramadol is a widely used analgesic whose bioactivation to O‐desmethyltramadol is primarily mediated by cytochrome P450 2D6 (CYP2D6). Genetic variability and drug–drug interactions affecting CYP2D6 may influence tramadol pharmacokinetics and pharmacological effects.
Saarikoski T, Saari TI, Backman JT, Niemi M, Neuvonen PJ, Olkkola KT, Laine K.   +6 more
europepmc   +2 more sources

Performance of passive Direct Methanol Fuel Cell: modelling and experimental studies

U.Porto Journal of Engineering, 2015
Low methanol and water crossover with high methanol concentrations are essential requirements for a passive Direct Methanol Fuel Cell (DMFC) to be used in portable applications.
Beatriz A. Berns, Mariana F. Torres, Vânia B. Oliveira, Alexandra M. F. R. Pinto   +3 more
doaj   +1 more source

Elucidating the Water and Methanol Dynamics in Sulfonated Polyether Ether Ketone Nanocomposite Membranes Bearing Layered Double Hydroxides

Membranes, 2022
Conventional Nafion membranes demonstrate a strong affinity for methanol, resulting in a high fuel crossover, poor mechanical stability, and thus poor performance in direct methanol fuel cells (DMFCs). This study involves the synthesis and physiochemical
Ernestino Lufrano, Isabella Nicotera, Apostolos Enotiadis, Muhammad Habib Ur Rehman, Cataldo Simari   +4 more
doaj   +1 more source

Heat and Mass Balance Analysis of 130-W Active-type Direct-methanol Fuel Cell

Electrochemistry, 2022
A “heat- and mass-balance analysis” for a direct-methanol fuel cell (DMFC) system, accounting for actual experimental data and the heat- and mass transfer of the DMFC, is proposed to facilitate the usage of general spreadsheet software.
Shinsuke ANDOH, Jun KAWAJI, Shuichi SUZUKI, Yoshiyuki KURODA, Shigenori MITSUSHIMA   +4 more
doaj   +1 more source

Reduced Graphene Oxide/Carbon Paper for the Anode Diffusion Layer of a Micro Direct Methanol Fuel Cell

Nanomaterials, 2022
The diffusion layer (DL) in the structure of the membrane electrode assembly (MEA) of a micro direct methanol fuel cell (μDMFC) plays an essential role in reactant/product mass transfer and catalyst loading. The material selection and structure design of
Dacheng Zhang, Kang Li, Ziten Wang, Zhengang Zhao   +3 more
doaj   +1 more source