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Poly(dimethyl siloxane) Membrane for High Temperature Proton Exchange Membrane Fuel Cells
Journal of Nanoscience and Nanotechnology, 2009Sulfonic acid-based membrane gives the relatively high conductivity only in the presence of water, but phosphoric acid presents the relatively high proton conductivity without water because of its self dissociation natures to develop high temperature PEMFCs.
Lee-Jin, Ghil +4 more
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Novel Proton Exchange Membrane for High Temperature Fuel Cells
MRS Proceedings, 1997ABSTRACTThis research effort sought to demonstrate that combining select phosphonic acid additives with Nafion could improve Nafion's high temperature electrochemical performance. A 1:1 mixture of the additive with Nafion, resulted in a film that demonstrated 30% higher conductivity than a phosphoric acid equilibrated Nafion control at 175°C.
M. Bhamidipati +3 more
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Research of Novel High-Temperature Proton Exchange Composite Membrane
Applied Mechanics and Materials, 2014Polyaniline (PANI) and phosphoric acid (PA) doped sulfonated polybenzimidazole (SPBI) composite membrane was prepared.Thermal stability of the pure SPBI copolymer was investigated by TGA measurements. The proton conductivities and physical properties of the membrane were studied.
Dong Xia Zhang +4 more
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High-Temperature Self-Humidifying Proton Exchange Membrane Fuel Cell
ECS Meeting Abstracts, 2015Proton exchange membrane fuel cell (PEMFC) is considered as a clean and high-efficient power source for portable and on-site applications. Perfluorosulfonic acid (PFSA) polymer is the most common used electrolyte membrane material in PEMFC due to its high proton conductivity and excellent long-term stability under fully hydrated condition. However, its
Wei Han, King Lun Yeung
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Ionomeric Binders for High Temperature Proton Exchange Membrane Fuel Cells
Chemistry – A European JournalAbstractHigh‐temperature proton exchange membrane fuel cell (HT‐PEMFC) based on phosphoric acid doped polybenzimidazole membrane (PBI/PA) operating at 120–200 °C can provide insensitivity to carbon monoxide (CO) and simplified managements of water and heat and thus attract significant global attention.
Ruiyang Xing +4 more
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Phosphoric Acid Loss Mechanism of High Temperature Proton Exchange Membranes
ECS Meeting Abstracts, 2019High temperature-polymer electrolyte fuel cells (HT-PEMFCs) traditionally utilize phosphoric acid-doped polybenzimidazole as proton exchange membrane.1 However, the retention of phosphoric acid within polymer matrix has been pointed out as one of the most critical factors that affect HT-PEMFC durability.
Albert S Lee +3 more
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High-temperature proton-exchange membranes based on polymer-acid complexes
Polymer Science Series B, 2006The published data on proton-exchange membranes designed for solid-polymer fuel cells with operating temperatures of up to 200°C are surveyed. Complexes of basic polymers with strong acids are the most attractive materials for these membranes. Particular attention is paid to complexes of polybenzimidazoles with phosphoric acid.
A. Yu. Leikin +3 more
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Proton Exchange Membrane Fuel Cells: High-Temperature, Low-Humidity Operation
2012Proton exchange membrane fuel cells (PEMFCs) together with hydrogen represent an important storage and utilization technology for energy generated from renewable sources such as wind, solar, geothermal, or hydroelectric. This is due in part to their high energy density, low operating temperature, rapid start-up, modular design, flexibility of scale (a ...
Steven J. Hamrock, Andrew M. Herring
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Nafion/PTFE/silicate membranes for high-temperature proton exchange membrane fuel cells
International Journal of Hydrogen Energy, 2008Abstract Fuel cell performance of membrane electrode assemblies (MEAs) prepared from poly(tetrafluoroethylene)/Nafion/silicate (PNS) membrane and Nafion-112 membrane were investigated. Due to the low conductivity of PTFE and silicate, PNS had a higher proton resistance than Nafion-112.
G JUNG +7 more
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Polybenzimidazole/SiO2 hybrid membranes for high temperature proton exchange membrane fuel cells
International Journal of Hydrogen Energy, 2016Abstract Polybenzimidazole/Silicon dioxide (PBI/SiO2) hybrid membranes were prepared and characterized as alternative materials for high temperature proton exchange membrane fuel cell (HT-PEMFC). The PBI/SiO2 membranes were cast from a PBI polymer synthesized in the laboratory and contained 5 wt. % SiO2 as inorganic filler.
Yılser Devrim +2 more
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