Results 61 to 70 of about 3,247 (230)
Polyvinylidene Fluoride: A Growing Specialty Polymer with Many Facets
Chinese Journal of Chemistry, EarlyView.Comprehensive Summary Polyvinylidene fluoride (PVDF), the second largest produced fluoropolymer, exhibits outstanding chemical, physical, electroactive and electrochemical properties and is involved in many High‐Tech applications. This review reports recent novelties in synthesis, characterization, processes and applications. Recent preparation studies
Bruno Améduri
wiley +1 more source
Development of a PEM Fuel Cell City Bus with a Hierarchical Control System
Energies, 2016 The polymer electrolyte membrane (PEM) fuel cell system is considered to be an ideal alternative for the internal combustion engine, especially when used on a city bus.
Siliang Cheng +5 more
doaj +1 more source
Going from Pt to PGM‐free Catalysts: Effects of Ink Compositions on PEM Water Electrolysis
ChemPhysChem, Volume 26, Issue 6, March 15, 2025.Optimisation of cathode ink formulations regarding the ratio between catalyst, carbon and binder results in a boost in PEM water electrolysis performance. The optimisation can be transferred from pentlandites to platinum and selenide catalysts, wherein the metal chalcogenides show a stronger performance enhancement.
Janna Wierper +7 more
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On the distribution of local current density along a PEM fuel cell cathode channel
Electrochemistry Communications, 2019 We report analysis of a recent model for local current density distribution along the air channel in a PEM fuel cell. Analytical solution for the case of small cell ohmic resistivity is obtained. An algorithm for numerical solution of the model equations
Tatyana Reshetenko, Andrei Kulikovsky
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ChemSusChem, Volume 18, Issue 6, March 15, 2025.Sustainable hydrogen production can be obtained from hydogen‐rich biomass‐derived organic molecules through Acceptorless Dehydrogenation (AD) reactions. Glycerol and sugars are available in large quantities from industry and can be successfully used as substrates in AD protocols, in the presence of tailored, selective, easily tunable and thermally ...
Sylwia Kostera, Luca Gonsalvi
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Acoustic‐driven surface cleaning with millimeter‐sized bubbles at translational resonance
Droplet, EarlyView.Time‐lapse visualization comparing bubble trajectories. The top panel (0 Hz) shows a bubble's linear path under no acoustic forcing, while the bottom panel (50 Hz) demonstrates the oscillatory motion induced by acoustic waves at a resonance mode. This mechanism holds promising potential for applications such as surface cleaning.
Yan Jun Lin +2 more
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Journal of Chemistry, 2015 Water transport and the corresponding water management strategy in proton exchange membrane (PEM) fuel cells are quite critical for the improvement of the cell performance. Accuracy modeling of water transport in porous electrodes strongly depends on the
Chao Si +3 more
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Recent advances in boosting interfacial bubble dynamics with external fields
Droplet, EarlyView.External physical fields, including acoustic, magnetic, thermal, mechanical, and optical stimuli, accelerate the entire bubble‐dynamics sequence of nucleation, growth, and detachment. Abstract The efficiency of industrial electrocatalytic reactions depends not only on generating gaseous products but also on their detachment from the catalyst surface ...
Wenlu Xie +5 more
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ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.An ordered cathode catalyst layer with efficient mass transport capability was developed based on the ALD of Pt onto VACNTs for high‐performance ultra‐low Pt loading PEMFC. The order‐structured cathode catalyst layer (CCL) has been considered the most promising solution to construct low‐cost proton exchange membrane fuel cells (PEMFCs) with an ultra ...
Jia Liu +8 more
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ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A scalable dual‐functional strategy yields simultaneously sulfonated and nanosized cellulose for proton exchange membranes with continuous hydrogen‐bond networks. These sustainable membranes exhibit low‐humidity proton conductivity twofold higher than Nafion 212, providing a robust solution for next‐generation fuel cells.
Nan Li +6 more
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