Results 1 to 10 of about 327,547 (230)

Proton Conductive, Low Methanol Crossover Cellulose-Based Membranes [PDF]

Membranes, 2021
This work describes the development of sulfated cellulose (SC) polymer and explores its potential as an electrolyte-membrane for direct methanol fuel cells (DMFC).
Jamaliah Aburabie, Boor Lalia, Raed Hashaikeh   +2 more
doaj   +4 more sources

Numerical investigation of methanol crossover through the membrane in a direct methanol fuel cell [PDF]

Hydrogen, Fuel Cell & Energy Storage, 2018
A two-dimensional, single-phase, isothermal model has been developed for a direct methanol fuel cell (DMFC). The model considers the anode and cathode electrochemical equations, continuity, momentum and species transport in the entire fuel cell.
Shima Sharifi, Rahbar Rahimi, Davood Mohebbi-Kalhori, CAN OZGUR COLPAN   +3 more
doaj   +2 more sources

Computational Insights into Selective Water–Methanol Transport in rGO/PSS Composite Films [PDF]

Molecules
Reduced graphene oxide (rGO) wrapped with poly(styrenesulfonate) (PSS) forms a stable hybrid material (rGO/PSS) capable of producing ultrathin films with promising barrier properties for Direct Methanol Fuel Cell (DMFC) applications.
João Felipe da Silva Almeida, Nathan Rabelo Martins, Daiane Damasceno Borges   +2 more
doaj   +2 more sources

Study of the effect of ADL anodic diffusion layer on the performance of a direct methanol fuel cell (DMFC)

Revue des Énergies Renouvelables, 2022
In this study we investigated the properties of the species diffusion layer (ADL) affect the optimal performance of the electrode [1]. Diffusion layers (DL) are porous media allowing reactive gases and liquids to move from distribution channels to ...
Mihoub Medkour, Mohamed Roudane, Mourad Mderes   +2 more
doaj   +1 more source

A Tortuosity Engineered Dual-Microporous Layer Electrode Including Graphene Aerogel Enabling Largely Improved Direct Methanol Fuel Cell Performance with High-Concentration Fuel

Energies, 2022
Methanol crossover is an important factor affecting the performance of direct methanol fuel cells (DMFCs). In this work, a novel membrane electrode assembly (MEA) is designed and prepared by adding a layer of graphene aerogel (GA) between the carbon ...
Li Guan, Prabhuraj Balakrishnan, Huiyuan Liu, Weiqi Zhang, Yilin Deng, Huaneng Su, Lei Xing, Željko Penga, Qian Xu   +8 more
doaj   +1 more source

Effect of Calcium Hydroxy Phosphate as a Crystallinity Enhancer in Nafion Membrane for Direct Methanol Fuel Cell

Chemical Engineering Transactions, 2020
Nafion is a widely used membrane in direct methanol fuel cell (DMFC). Many advantages of Nafion including good chemical stability, good thermal resistance, and high proton conductivity. However, Nafion has high methanol crossover which remarkably reduces
Dhanawich Taechaboonsermsak, Chaiwat Prapainainar, Paisan Kongkachuichay, Paweena Prapainainar   +3 more
doaj   +1 more source

Suppression of Methanol and Formate Crossover through Sulfanilic‐Functionalized Holey Graphene as Proton Exchange Membranes

Advanced Science, 2023
Proton exchange membranes with high proton conductivity and low crossover of fuel molecules are required to realize advanced fuel‐cell technology. The selective transportation of protons, which occurs by blocking the transportation of fuel molecules ...
Samuel Jeong, Tatsuhiko Ohto, Tomohiko Nishiuchi, Yuki Nagata, Jun‐ichi Fujita, Yoshikazu Ito   +5 more
doaj   +1 more source

A Reactive Methanol Filter with a Layer of Nanometer-sized Pt50-Sn50 Catalyst Particles Directly Deposited onto the Proton Exchange Membrane Surface

International Journal of Electrochemical Science, 2011
A thin layer of nanometer-sized Pt50-Sn50 catalyst particles deposited onto the proton exchange membrane (PEM) surface that served as methanol filter was prepared by the impregnation-reduction (IR) method to mitigate the methanol crossover and improve ...
Chieh-Hao Wan, Jyun-Ming Wei, Meng-Tsun Lin, Chien-Heng Lin   +3 more
doaj   +1 more source

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