Results 1 to 10 of about 5,733 (189)

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

Nanostructured POSS Crosslinked Polybenzimidazole with Free Radical Scavenging Function for High-Temperature Proton Exchange Membranes [PDF]

open access: yesNanomaterials
High-temperature proton exchange membranes (HT-PEMs) are critical components of high-temperature fuel cells, facilitating proton transport and acting as a barrier to fuel and electrons; however, their performance is hampered by persistent issues of ...
Chao Meng   +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

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

Nanostructured poly(benzimidazole) membranes by N-alkylation [PDF]

open access: yeseXPRESS Polymer Letters, 2014
Modification of poly(benzimidazole) (PBI) by N-alkylation leads to polymers capable of undergoing microphase separation. Polymers with different amounts of C18 alkyl chains have been prepared. The polymers were analyzed by spectroscopy, thermal analysis,
J. Weber, P. Haro Dominguez, K. Grygiel
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

Home - About - Disclaimer - Privacy