Results 21 to 30 of about 327,547 (230)

Enhanced Proton Conductivity and Methanol Permeability Reduction via Sodium Alginate Electrolyte-Sulfonated Graphene Oxide Bio-membrane

Nanoscale Research Letters, 2018
The high methanol crossover and high cost of Nafion® membrane are the major challenges for direct methanol fuel cell application. With the aim of solving these problems, a non-Nafion polymer electrolyte membrane with low methanol permeability and high ...
N. Shaari, S. K. Kamarudin, S. Basri, L. K. Shyuan, M. S. Masdar, D. Nordin   +5 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

The Effect of Distinct Geometric Semantic Crossover Operators in Regression Problems [PDF]

, 2015
This paper investigates the impact of geometric semantic crossover operators in a wide range of symbolic regression problems. First, it analyses the impact of using Manhattan and Euclidean distance geometric semantic crossovers in the learning process ...
Albinati, Julio, Otero, Fernando E.B., Julio Albinati, Luiz Otávio V. B. Oliveira, Gisele L. Pappa, Pappa, Gisele L., Oliveira, Luiz Otávio V.B., Fernando E. B. Otero   +7 more
core   +1 more source

Vapor-feed direct methanol fuel cells using pure methanol

Energy Conversion and Management: X
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

Aqueous proton-selective conduction across two-dimensional graphyne

Nature Communications, 2019
Aqueous proton-selective membranes are vital for methanol fuel cells and flow batteries, but suffer from crossover issues. Here the authors use ab initio molecular dynamics simulations to show that graphyne is an ideal candidate for a proton-selective ...
Le Shi, Ao Xu, Ding Pan, Tianshou Zhao
doaj   +1 more source

Continuous Production of Biodiesel with Supercritical Methanol: a Simple Compressible Flow Model for Tubular Reactors [PDF]

, 2011
From an industrial point of view, the continuous process for biodiesel production with supercritical methanol (SCM) is more appropriate than the batch process.
Sawangkeaw, Ruengwit, Somkiat, Ngamprasertsith, Kunchana, Bunyakiat, Ruengwit Sawangkeaw, Witsanee Satayanon, Camy, Séverine, Witsanee, Satayanon, Séverine Camy, Somkiat Ngamprasertsith, Condoret, Jean-Stéphane, Kunchana Bunyakiat, Jean-Stéphane Condoret   +11 more
core   +1 more source

Selectivity of Direct Methanol Fuel Cell Membranes

Membranes, 2015
Sulfonic acid-functionalized polymer electrolyte membranes alternative to Nafion® were developed. These were hydrocarbon systems, such as blend sulfonated polyetheretherketone (s-PEEK), new generation perfluorosulfonic acid (PFSA) systems, and composite
Antonino S. Aricò, David Sebastian, Michael Schuster, Bernd Bauer, Claudia D'Urso, Francesco Lufrano, Vincenzo Baglio   +6 more
doaj   +1 more source

Microfluidic Direct Methanol Fuel Cell with Ladder-Shaped Microchannel for Decreased Methanol Crossover

International Journal of Electrochemical Science, 2013
In this work, the design and fabrication of a planar, glass- polydimethylsiloxane based microfluidic direct methanol fuel cell with ladder-shaped microchannel are presented.
Weiwei Huo, Yi Zhou, Haifeng Zhang, Zhiqing Zou, Hui Yang   +4 more
doaj   +1 more source

Orchestrating Anion–π+ Interactions to Accelerate Metal‐Free Room‐Temperature Phosphorescence

Angewandte Chemie, EarlyView.
Tuning anion–π+ interactions in pyridinium iodide contact ion pairs enables ultrafast metal‐free room‐temperature phosphorescence (540–605 nm) with radiative rates up to 5.2×105 s−1. Strong iodide→π+ charge‐transfer coupling, enhanced spin–orbit interactions, and dynamic ion‐pair organization accelerate intersystem crossing and emission, establishing ...
Eetu Hakkarainen, Corentin Montagne, Hao‐Cheng Lin, Chen‐Yu Lin, Khai‐Nghi Truong, Po‐Yu Chen, Anton Nechaev, Fabien B. L. Cougnon, Igor O. Koshevoy, Toni Eskelinen, Hao‐Wu Lin, Pi‐Tai Chou, Andrey Belyaev   +12 more
wiley   +2 more sources

Mechanical Flexibility Enables DNA Origami to Overcome Steric Confinement in Mucus

Advanced Science, EarlyView.
Mechanical flexibility is introduced as a design parameter to enhance nanocarrier transport in mucus. Using DNA origami, flexibility is decoupled from size, shap and surface chemistry, revealing improved passage through confined hydrogel networks. While surface passivation reduces aggregation, flexibility further boosts transport, offering a general ...
Matteo Tollemeto, Emily Tsang, Marie Karen Tracy Hong Lin, Luca Mannino, Kurt V. Gothelf, Anja Boisen   +5 more
wiley   +1 more source