Results 11 to 20 of about 126,687 (209)

Effects of temperature and cathode humidity on performance of PEM full cell

open access: yesXibei Gongye Daxue Xuebao, 2023
The performance of proton exchange membrane fuel cells (PEMFCs) is significantly influenced by their temperature and cathode humidity, as they affect power density and internal water distribution.
MA Jing   +4 more
doaj   +1 more source

A Novel High Temperature Fuel Cell Proton Exchange Membrane with Nanoscale Phase Separation Structure Based on Crosslinked Polybenzimidazole with Poly(vinylbenzyl chloride)

open access: yesNanomaterials, 2023
A semi-aromatic polybenzimidazole (DPBI) is synthesized via polycondensation of decanedioic acid (DCDA) and 3,3-diaminobenzidine (DAB) in a mixed phosphorus pentoxide/methanesulfonic acid (PPMA) solvent. Ascribing to in-situ macromolecular crosslinker of
Erli Qu   +7 more
doaj   +1 more source

Ecological Performance Optimization of a High Temperature Proton Exchange Membrane Fuel Cell

open access: yesMathematics, 2021
According to finite-time thermodynamics, an irreversible high temperature proton exchange membrane fuel cell (HT-PEMFC) model is established, and the mathematical expressions of the output power, energy efficiency, exergy efficiency and ecological ...
Dongxu Li   +6 more
doaj   +1 more source

Recent Approaches to Achieve High Temperature Operation of Nafion Membranes

open access: yesEnergies, 2023
A proton exchange membrane fuel cell (PEMFC), as an efficient energy conversion device, has many advantages, such as high energy conversion efficiency and environmentally friendly zero emissions, and is expected to have great potential for addressing the
Guoxiao Xu   +5 more
doaj   +1 more source

Self-Humidifying Membrane for High-Performance Fuel Cells Operating at Harsh Conditions: Heterojunction of Proton and Anion Exchange Membranes Composed of Acceptor-Doped SnP2O7 Composites

open access: yesMembranes, 2021
Here we suggest a simple and novel method for the preparation of a high-performance self-humidifying fuel cell membrane operating at high temperature (>100 °C) and low humidity conditions (
Pilwon Heo   +4 more
doaj   +1 more source

Real-Time Monitoring of HT-PEMFC

open access: yesMembranes, 2022
During the electrochemical reaction of a high temperature proton exchange membrane fuel cell (HT-PEMFC), (in this paper HT-PEMFC means operating in the range of 120 to 200 °C) the inhomogeneity of temperature, flow rate, and pressure in the interior is ...
Chi-Yuan Lee   +4 more
doaj   +1 more source

Proton Conducting Nanocomposite Membranes Based on Poly Vinyl Alcohol (PVA) / Glutaraldehyde (GA) for Proton Exchange Membrane Fuel Cells [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2021
In the present work, BaCe0.85Yb0.15O3-δ mixed metal oxide nanoparticles supplying strong acid sites and good hydrophilic nature were used for the first time to build organic-inorganic proton exchange membranes.
Javad Salehi Artimani   +3 more
doaj   +1 more source

Hollow Mesoporous Silica by Ion Exchange-Induced Etching Strategy for High Temperature Proton Exchange Membrane

open access: yesFrontiers in Energy Research, 2021
Hollow mesoporous silica (HMS) has attracted significant attention for fuel cell applications. The mesopores in the shell can accelerate proton transport and the void in the center of the particle is advantageous for proton storage.
Aijing Zhang   +5 more
doaj   +1 more source

Synthesis of new azole phosphonate precursors for fuel cells proton exchange membranes [PDF]

open access: yes, 2015
Herein we present the synthesis and characterization of new phosphonate-, bisphosphonate- and hydroxybisphosphonatebenzimidazole derivatives substituted at the N-1 position and new regioisomers phosphonate-, bisphosphonate-, and ...
Rangel, C. M.   +2 more
core   +1 more source

Combined heat and power using high temperature proton exchange membrane fuel cells for comfort applications [PDF]

open access: yes, 2017
Global concerns about nowadays’ energy shortage problems as well as climate change eects have encouraged alternatives to classical energy sources such as fossil fuels and nuclear power plants.
Batlle Arnau, Carles   +2 more
core   +1 more source

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