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Phosphoric‐Acid Retention in High‐Temperature Proton‐Exchange Membranes
Chemistry – A European Journal, 2022AbstractGreat efforts have been conducted to develop high temperature proton exchange membrane fuel cell (HT‐PEMFC) due to its features of enhanced electrocatalyst reactivity, simplified hydrothermal management system and high CO tolerance of catalysts, and remarkable progress has been achieved.
Hongying Tang +4 more
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Silica-facilitated proton transfer for high-temperature proton-exchange membrane fuel cells
Science China Chemistry, 2021High-temperature proton-exchange membrane fuel cells (HT-PEMFCs) have shown a broad prospect of applications due to the enhanced reaction kinetics and simplified supporting system. However, the proton conductor, phosphoric acid, tends to poison the active sites of Pt, resulting in high Pt consumption.
Gen Huang +9 more
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Reviews in Chemical Engineering, 2020
Abstract The high-temperature proton exchange membrane fuel cell (HT-PEMFC) offers several advantages, such as high proton conductivity, high CO tolerance, good chemical/thermal stability, good mechanical properties, and low cost. The proton exchange membrane (PEM) is the critical component of HT-PEMFC. This work discusses the methods of
Guoqiang Li +2 more
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Abstract The high-temperature proton exchange membrane fuel cell (HT-PEMFC) offers several advantages, such as high proton conductivity, high CO tolerance, good chemical/thermal stability, good mechanical properties, and low cost. The proton exchange membrane (PEM) is the critical component of HT-PEMFC. This work discusses the methods of
Guoqiang Li +2 more
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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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