Results 1 to 10 of about 5,731 (205)

Platinum Nanoparticles Immobilized on Electrospun Membranes for Catalytic Oxidation of Volatile Organic Compounds [PDF]

open access: yesMembranes, 2023
Structured catalytic membranes with high porosity and a low pressure drop are particularly suitable for industrial processes carried out at high space velocities.
Karel Soukup   +3 more
doaj   +2 more sources

Improving the Separation Properties of Polybenzimidazole Membranes by Adding Acetonitrile for Organic Solvent Nanofiltration [PDF]

open access: yesMembranes, 2023
In research on membranes, the addition of co-solvents to the polymer dope solution is a common method for tuning the morphology and separation performance.
Ga Yeon Won   +7 more
doaj   +2 more sources

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

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   +2 more sources

Cardo Polybenzimidazole (PBI-O-PhT) Based Membrane Reinforced with m-polybenzimidazole Electrospun Nanofiber Mat for HT-PEM Fuel Cell Applications [PDF]

open access: yesMembranes, 2022
The further development of high temperature polymer electrolyte membrane (HT-PEM) fuel cells largely depends on the improvement of all components of the membrane–electrode assembly (MEA), especially membranes and electrodes.
Igor I. Ponomarev   +5 more
doaj   +2 more sources

Supercapacitor Cell Performance with Bacterial Nanocellulose and Bacterial Nanocellulose/Polybenzimidazole Impregnated Membranes as Separator [PDF]

open access: yesMembranes
Supercapacitors are advanced energy storage devices renowned for their rapid energy delivery and long operational lifespan, making them indispensable across various industries.
Hristo Penchev   +7 more
doaj   +2 more sources

A Camphorsulfonic Acid-Grafted Polybenzimidazole Ion Selectivity Membrane for Vanadium Redox Flow Battery [PDF]

open access: yesMembranes
The design of the chemical structure of ion-conductive membranes is critical to enhance proton/vanadium ion selectivity and the performance of vanadium redox flow batteries (VRFBs).
Yujie Guo   +7 more
doaj   +2 more sources

Metal-coordinated polybenzimidazole membranes with preferential K+ transport [PDF]

open access: yesNature Communications, 2023
Membranes with fast and selective ion transport are essential for electrochemical processes. Here the authors provide mechanistic insights into the structures of metal-ion coordinated polybenzimidazole membranes and the preferential K+ transport, and ...
Jine Wu   +7 more
doaj   +2 more sources

Double cross-linked 3D layered PBI proton exchange membranes for stable fuel cell performance above 200 °C [PDF]

open access: yesNature Communications
Phosphoric acid doped proton exchange membranes often experience performance degradation above 200 °C due to membrane creeping and phosphoric acid evaporation, migration, dehydration, and condensation.
Liang Zhang   +7 more
doaj   +2 more sources

Protic ionic liquid-grafted polybenzimidazole as proton conducting catalyst binder for high-temperature proton exchange membrane fuel cells

open access: yesPolymer Testing, 2021
Development of suitable catalyst binder with reasonable proton conductivity is of great importance for improving catalytic performance of oxygen reduction reactions of platinum-based catalysts. Herein, we report that polybenzimidazole grafted with protic
Jingjing Guo   +5 more
doaj   +1 more source

Experimental Analysis of Catalyst Layer Operation in a High-Temperature Proton Exchange Membrane Fuel Cell by Electrochemical Impedance Spectroscopy

open access: yesEnergies, 2023
High-temperature proton exchange membrane fuel cells (HT-PEMFC) directly convert hydrogen and oxygen to produce electric power at a temperature significantly higher than conventional low-temperature fuel cells.
Andrea Baricci, Andrea Casalegno
doaj   +1 more source

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